[v1,3/3] Documentation/ABI: Add new attributes for mlxreg-io sysfs interfaces

Commit Message

Michael Shych April 30, 2022, 11:58 a.m. UTC

From: Michael Shych <[e-mail]>

Add documentation for the new attributes:
- "phy_reset" - Reset PHY.
- "mac_reset" - Reset MAC.
- "qsfp_pwr_good" - The power status of QSFP ports.

Signed-off-by: Michael Shych <[e-mail]>
Reviewed-by: Vadim Pasternak <[e-mail]>
---
 drivers/platform/mellanox/nvsw-sn2201.c | 1766 +++++++++----------------------
 1 file changed, 505 insertions(+), 1261 deletions(-)

Comments

Hans de Goede May 11, 2022, 2:40 p.m. UTC | #1

Hi,

On 4/30/22 13:58, [e-mail] wrote:
> From: Michael Shych <[e-mail]>
> 
> Add documentation for the new attributes:
> - "phy_reset" - Reset PHY.
> - "mac_reset" - Reset MAC.
> - "qsfp_pwr_good" - The power status of QSFP ports.
> 
> Signed-off-by: Michael Shych <[e-mail]>
> Reviewed-by: Vadim Pasternak <[e-mail]>

Something has gone seriously wrong with preparing this
patch. It seems that the new intended contents of
Documentation/ABI/stable/sysfs-driver-mlxreg-io
was written over drivers/platform/mellanox/nvsw-sn2201.c
and then the result was commited and worse submitted
upstream.

Next time please do a dummy run before submitting
patches upstream like this:

1. Run "git format patch HEAD~3" (3 because this time there were 3 patches)
2. Run "scripts/checkpatch.pl 00*" and check for issues
3. Run "$EDITOR 00*" and manually check if things are as they should be.

I've fixed this up now by taking the last 3 documentation
entries from drivers/platform/mellanox/nvsw-sn2201.c after
applying this patch (which rewrites it into a documentation
file) and adding those at the end of:
Documentation/ABI/stable/sysfs-driver-mlxreg-io

I also had to manually fix the indentation of the 3 new
entries using spaces everywhere where as the existing
file uses tabs everywhere.

Once I'm done running some local tests I will push this to:

https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Please double check (once pushed) that the documentation
commit is as it should be.

Regards,

Hans





> ---
>  drivers/platform/mellanox/nvsw-sn2201.c | 1766 +++++++++----------------------
>  1 file changed, 505 insertions(+), 1261 deletions(-)
> 
> diff --git a/drivers/platform/mellanox/nvsw-sn2201.c b/drivers/platform/mellanox/nvsw-sn2201.c
> index e1ebd871da04..9e397c54dd85 100644
> --- a/drivers/platform/mellanox/nvsw-sn2201.c
> +++ b/drivers/platform/mellanox/nvsw-sn2201.c
> @@ -1,1261 +1,505 @@
> -// SPDX-License-Identifier: GPL-2.0+
> -/*
> - * Nvidia sn2201 driver
> - *
> - * Copyright (C) 2022 Nvidia Technologies Ltd.
> - */
> -
> -#include <linux/device.h>
> -#include <linux/i2c.h>
> -#include <linux/interrupt.h>
> -#include <linux/irq.h>
> -#include <linux/gpio.h>
> -#include <linux/module.h>
> -#include <linux/platform_data/mlxcpld.h>
> -#include <linux/platform_data/mlxreg.h>
> -#include <linux/platform_device.h>
> -#include <linux/regmap.h>
> -
> -/* SN2201 CPLD register offset. */
> -#define NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR          0x2000
> -#define NVSW_SN2201_CPLD_LPC_IO_RANGE               0x100
> -#define NVSW_SN2201_HW_VER_ID_OFFSET                0x00
> -#define NVSW_SN2201_BOARD_ID_OFFSET                 0x01
> -#define NVSW_SN2201_CPLD_VER_OFFSET                 0x02
> -#define NVSW_SN2201_CPLD_MVER_OFFSET                0x03
> -#define NVSW_SN2201_CPLD_ID_OFFSET                  0x04
> -#define NVSW_SN2201_CPLD_PN_OFFSET                  0x05
> -#define NVSW_SN2201_CPLD_PN1_OFFSET                 0x06
> -#define NVSW_SN2201_PSU_CTRL_OFFSET                 0x0a
> -#define NVSW_SN2201_QSFP28_STATUS_OFFSET            0x0b
> -#define NVSW_SN2201_QSFP28_INT_STATUS_OFFSET        0x0c
> -#define NVSW_SN2201_QSFP28_LP_STATUS_OFFSET         0x0d
> -#define NVSW_SN2201_QSFP28_RST_STATUS_OFFSET        0x0e
> -#define NVSW_SN2201_SYS_STATUS_OFFSET               0x0f
> -#define NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET       0x10
> -#define NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET       0x12
> -#define NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET       0x13
> -#define NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET   0x14
> -#define NVSW_SN2201_SYS_RST_STATUS_OFFSET           0x15
> -#define NVSW_SN2201_SYS_INT_STATUS_OFFSET           0x21
> -#define NVSW_SN2201_SYS_INT_MASK_OFFSET             0x22
> -#define NVSW_SN2201_ASIC_STATUS_OFFSET              0x24
> -#define NVSW_SN2201_ASIC_EVENT_OFFSET               0x25
> -#define NVSW_SN2201_ASIC_MAKS_OFFSET                0x26
> -#define NVSW_SN2201_THML_STATUS_OFFSET              0x27
> -#define NVSW_SN2201_THML_EVENT_OFFSET               0x28
> -#define NVSW_SN2201_THML_MASK_OFFSET                0x29
> -#define NVSW_SN2201_PS_ALT_STATUS_OFFSET            0x2a
> -#define NVSW_SN2201_PS_ALT_EVENT_OFFSET             0x2b
> -#define NVSW_SN2201_PS_ALT_MASK_OFFSET              0x2c
> -#define NVSW_SN2201_PS_PRSNT_STATUS_OFFSET          0x30
> -#define NVSW_SN2201_PS_PRSNT_EVENT_OFFSET           0x31
> -#define NVSW_SN2201_PS_PRSNT_MASK_OFFSET            0x32
> -#define NVSW_SN2201_PS_DC_OK_STATUS_OFFSET          0x33
> -#define NVSW_SN2201_PS_DC_OK_EVENT_OFFSET           0x34
> -#define NVSW_SN2201_PS_DC_OK_MASK_OFFSET            0x35
> -#define NVSW_SN2201_RST_CAUSE1_OFFSET               0x36
> -#define NVSW_SN2201_RST_CAUSE2_OFFSET               0x37
> -#define NVSW_SN2201_RST_SW_CTRL_OFFSET              0x38
> -#define NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET         0x3a
> -#define NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET          0x3b
> -#define NVSW_SN2201_FAN_PRSNT_MASK_OFFSET           0x3c
> -#define NVSW_SN2201_WD_TMR_OFFSET_LSB               0x40
> -#define NVSW_SN2201_WD_TMR_OFFSET_MSB               0x41
> -#define NVSW_SN2201_WD_ACT_OFFSET                   0x42
> -#define NVSW_SN2201_FAN_LED1_CTRL_OFFSET            0x50
> -#define NVSW_SN2201_FAN_LED2_CTRL_OFFSET            0x51
> -#define NVSW_SN2201_REG_MAX                         0x52
> -
> -/* Number of physical I2C busses. */
> -#define NVSW_SN2201_PHY_I2C_BUS_NUM		2
> -/* Number of main mux channels. */
> -#define NVSW_SN2201_MAIN_MUX_CHNL_NUM		8
> -
> -#define NVSW_SN2201_MAIN_NR			0
> -#define NVSW_SN2201_MAIN_MUX_NR			1
> -#define NVSW_SN2201_MAIN_MUX_DEFER_NR		(NVSW_SN2201_PHY_I2C_BUS_NUM + \
> -						 NVSW_SN2201_MAIN_MUX_CHNL_NUM - 1)
> -
> -#define NVSW_SN2201_MAIN_MUX_CH0_NR	NVSW_SN2201_PHY_I2C_BUS_NUM
> -#define NVSW_SN2201_MAIN_MUX_CH1_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 1)
> -#define NVSW_SN2201_MAIN_MUX_CH2_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 2)
> -#define NVSW_SN2201_MAIN_MUX_CH3_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 3)
> -#define NVSW_SN2201_MAIN_MUX_CH5_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 5)
> -#define NVSW_SN2201_MAIN_MUX_CH6_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 6)
> -#define NVSW_SN2201_MAIN_MUX_CH7_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 7)
> -
> -#define NVSW_SN2201_CPLD_NR		NVSW_SN2201_MAIN_MUX_CH0_NR
> -#define NVSW_SN2201_NR_NONE		-1
> -
> -/* Masks for aggregation, PSU presence and power, ASIC events
> - * in CPLD related registers.
> - */
> -#define NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF	0xe0
> -#define NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF	0x04
> -#define NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF	0x02
> -#define NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF	0x10
> -#define NVSW_SN2201_CPLD_AGGR_MASK_DEF      \
> -	(NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF \
> -	| NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF \
> -	| NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF \
> -	| NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF)
> -
> -#define NVSW_SN2201_CPLD_ASIC_MASK		GENMASK(3, 1)
> -#define NVSW_SN2201_CPLD_PSU_MASK		GENMASK(1, 0)
> -#define NVSW_SN2201_CPLD_PWR_MASK		GENMASK(1, 0)
> -#define NVSW_SN2201_CPLD_FAN_MASK		GENMASK(3, 0)
> -
> -#define NVSW_SN2201_CPLD_SYSIRQ			26
> -#define NVSW_SN2201_LPC_SYSIRQ			28
> -#define NVSW_SN2201_CPLD_I2CADDR		0x41
> -
> -#define NVSW_SN2201_WD_DFLT_TIMEOUT		600
> -
> -/* nvsw_sn2201 - device private data
> - * @dev: platform device;
> - * @io_data: register access platform data;
> - * @led_data: LED platform data;
> - * @hotplug_data: hotplug platform data;
> - * @i2c_data: I2C controller platform data;
> - * @led: LED device;
> - * @io_regs: register access device;
> - * @pdev_hotplug: hotplug device;
> - * @sn2201_devs: I2C devices for sn2201 devices;
> - * @sn2201_devs_num: number of I2C devices for sn2201 device;
> - * @main_mux_devs: I2C devices for main mux;
> - * @main_mux_devs_num: number of I2C devices for main mux;
> - * @cpld_devs: I2C devices for cpld;
> - * @cpld_devs_num: number of I2C devices for cpld;
> - * @main_mux_deferred_nr: I2C adapter number must be exist prior creating devices execution;
> - */
> -struct nvsw_sn2201 {
> -	struct device *dev;
> -	struct mlxreg_core_platform_data *io_data;
> -	struct mlxreg_core_platform_data *led_data;
> -	struct mlxreg_core_platform_data *wd_data;
> -	struct mlxreg_core_hotplug_platform_data *hotplug_data;
> -	struct mlxreg_core_hotplug_platform_data *i2c_data;
> -	struct platform_device *led;
> -	struct platform_device *wd;
> -	struct platform_device *io_regs;
> -	struct platform_device *pdev_hotplug;
> -	struct platform_device *pdev_i2c;
> -	struct mlxreg_hotplug_device *sn2201_devs;
> -	int sn2201_devs_num;
> -	struct mlxreg_hotplug_device *main_mux_devs;
> -	int main_mux_devs_num;
> -	struct mlxreg_hotplug_device *cpld_devs;
> -	int cpld_devs_num;
> -	int main_mux_deferred_nr;
> -};
> -
> -static bool nvsw_sn2201_writeable_reg(struct device *dev, unsigned int reg)
> -{
> -	switch (reg) {
> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> -	case NVSW_SN2201_THML_EVENT_OFFSET:
> -	case NVSW_SN2201_THML_MASK_OFFSET:
> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> -	case NVSW_SN2201_WD_ACT_OFFSET:
> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> -		return true;
> -	}
> -	return false;
> -}
> -
> -static bool nvsw_sn2201_readable_reg(struct device *dev, unsigned int reg)
> -{
> -	switch (reg) {
> -	case NVSW_SN2201_HW_VER_ID_OFFSET:
> -	case NVSW_SN2201_BOARD_ID_OFFSET:
> -	case NVSW_SN2201_CPLD_VER_OFFSET:
> -	case NVSW_SN2201_CPLD_MVER_OFFSET:
> -	case NVSW_SN2201_CPLD_ID_OFFSET:
> -	case NVSW_SN2201_CPLD_PN_OFFSET:
> -	case NVSW_SN2201_CPLD_PN1_OFFSET:
> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
> -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_STATUS_OFFSET:
> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
> -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
> -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> -	case NVSW_SN2201_THML_STATUS_OFFSET:
> -	case NVSW_SN2201_THML_EVENT_OFFSET:
> -	case NVSW_SN2201_THML_MASK_OFFSET:
> -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> -	case NVSW_SN2201_WD_ACT_OFFSET:
> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> -		return true;
> -	}
> -	return false;
> -}
> -
> -static bool nvsw_sn2201_volatile_reg(struct device *dev, unsigned int reg)
> -{
> -	switch (reg) {
> -	case NVSW_SN2201_HW_VER_ID_OFFSET:
> -	case NVSW_SN2201_BOARD_ID_OFFSET:
> -	case NVSW_SN2201_CPLD_VER_OFFSET:
> -	case NVSW_SN2201_CPLD_MVER_OFFSET:
> -	case NVSW_SN2201_CPLD_ID_OFFSET:
> -	case NVSW_SN2201_CPLD_PN_OFFSET:
> -	case NVSW_SN2201_CPLD_PN1_OFFSET:
> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
> -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_STATUS_OFFSET:
> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
> -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
> -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> -	case NVSW_SN2201_THML_STATUS_OFFSET:
> -	case NVSW_SN2201_THML_EVENT_OFFSET:
> -	case NVSW_SN2201_THML_MASK_OFFSET:
> -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> -		return true;
> -	}
> -	return false;
> -}
> -
> -static const struct reg_default nvsw_sn2201_regmap_default[] = {
> -	{ NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET, 0x00 },
> -	{ NVSW_SN2201_WD_ACT_OFFSET, 0x00 },
> -};
> -
> -/* Configuration for the register map of a device with 1 bytes address space. */
> -static const struct regmap_config nvsw_sn2201_regmap_conf = {
> -	.reg_bits = 8,
> -	.val_bits = 8,
> -	.max_register = NVSW_SN2201_REG_MAX,
> -	.cache_type = REGCACHE_FLAT,
> -	.writeable_reg = nvsw_sn2201_writeable_reg,
> -	.readable_reg = nvsw_sn2201_readable_reg,
> -	.volatile_reg = nvsw_sn2201_volatile_reg,
> -	.reg_defaults = nvsw_sn2201_regmap_default,
> -	.num_reg_defaults = ARRAY_SIZE(nvsw_sn2201_regmap_default),
> -};
> -
> -/* Regions for LPC I2C controller and LPC base register space. */
> -static const struct resource nvsw_sn2201_lpc_io_resources[] = {
> -	[0] = DEFINE_RES_NAMED(NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR,
> -			       NVSW_SN2201_CPLD_LPC_IO_RANGE,
> -			       "mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
> -};
> -
> -static struct resource nvsw_sn2201_cpld_res[] = {
> -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_CPLD_SYSIRQ, "mlxreg-hotplug"),
> -};
> -
> -static struct resource nvsw_sn2201_lpc_res[] = {
> -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_LPC_SYSIRQ, "i2c-mlxcpld"),
> -};
> -
> -/* SN2201 I2C platform data. */
> -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_i2c_data = {
> -	.irq = NVSW_SN2201_CPLD_SYSIRQ,
> -};
> -
> -/* SN2201 CPLD device. */
> -static struct i2c_board_info nvsw_sn2201_cpld_devices[] = {
> -	{
> -		I2C_BOARD_INFO("nvsw-sn2201", 0x41),
> -	},
> -};
> -
> -/* SN2201 CPLD board info. */
> -static struct mlxreg_hotplug_device nvsw_sn2201_cpld_brdinfo[] = {
> -	{
> -		.brdinfo = &nvsw_sn2201_cpld_devices[0],
> -		.nr = NVSW_SN2201_CPLD_NR,
> -	},
> -};
> -
> -/* SN2201 main mux device. */
> -static struct i2c_board_info nvsw_sn2201_main_mux_devices[] = {
> -	{
> -		I2C_BOARD_INFO("pca9548", 0x70),
> -	},
> -};
> -
> -/* SN2201 main mux board info. */
> -static struct mlxreg_hotplug_device nvsw_sn2201_main_mux_brdinfo[] = {
> -	{
> -		.brdinfo = &nvsw_sn2201_main_mux_devices[0],
> -		.nr = NVSW_SN2201_MAIN_MUX_NR,
> -	},
> -};
> -
> -/* SN2201 power devices. */
> -static struct i2c_board_info nvsw_sn2201_pwr_devices[] = {
> -	{
> -		I2C_BOARD_INFO("pmbus", 0x58),
> -	},
> -	{
> -		I2C_BOARD_INFO("pmbus", 0x58),
> -	},
> -};
> -
> -/* SN2201 fan devices. */
> -static struct i2c_board_info nvsw_sn2201_fan_devices[] = {
> -	{
> -		I2C_BOARD_INFO("24c02", 0x50),
> -	},
> -	{
> -		I2C_BOARD_INFO("24c02", 0x51),
> -	},
> -	{
> -		I2C_BOARD_INFO("24c02", 0x52),
> -	},
> -	{
> -		I2C_BOARD_INFO("24c02", 0x53),
> -	},
> -};
> -
> -/* SN2201 hotplug default data. */
> -static struct mlxreg_core_data nvsw_sn2201_psu_items_data[] = {
> -	{
> -		.label = "psu1",
> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> -		.mask = BIT(0),
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -	{
> -		.label = "psu2",
> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> -		.mask = BIT(1),
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -};
> -
> -static struct mlxreg_core_data nvsw_sn2201_pwr_items_data[] = {
> -	{
> -		.label = "pwr1",
> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> -		.mask = BIT(0),
> -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[0],
> -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH1_NR,
> -	},
> -	{
> -		.label = "pwr2",
> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> -		.mask = BIT(1),
> -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[1],
> -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH2_NR,
> -	},
> -};
> -
> -static struct mlxreg_core_data nvsw_sn2201_fan_items_data[] = {
> -	{
> -		.label = "fan1",
> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> -		.mask = BIT(0),
> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[0],
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -	{
> -		.label = "fan2",
> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> -		.mask = BIT(1),
> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[1],
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -	{
> -		.label = "fan3",
> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> -		.mask = BIT(2),
> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[2],
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -	{
> -		.label = "fan4",
> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> -		.mask = BIT(3),
> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[3],
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -};
> -
> -static struct mlxreg_core_data nvsw_sn2201_sys_items_data[] = {
> -	{
> -		.label = "nic_smb_alert",
> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> -		.mask = BIT(1),
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -	{
> -		.label = "cpu_sd",
> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> -		.mask = BIT(2),
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -	{
> -		.label = "mac_health",
> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> -		.mask = BIT(3),
> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> -	},
> -};
> -
> -static struct mlxreg_core_item nvsw_sn2201_items[] = {
> -	{
> -		.data = nvsw_sn2201_psu_items_data,
> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF,
> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> -		.mask = NVSW_SN2201_CPLD_PSU_MASK,
> -		.count = ARRAY_SIZE(nvsw_sn2201_psu_items_data),
> -		.inversed = 1,
> -		.health = false,
> -	},
> -	{
> -		.data = nvsw_sn2201_pwr_items_data,
> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF,
> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> -		.mask = NVSW_SN2201_CPLD_PWR_MASK,
> -		.count = ARRAY_SIZE(nvsw_sn2201_pwr_items_data),
> -		.inversed = 0,
> -		.health = false,
> -	},
> -	{
> -		.data = nvsw_sn2201_fan_items_data,
> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF,
> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> -		.mask = NVSW_SN2201_CPLD_FAN_MASK,
> -		.count = ARRAY_SIZE(nvsw_sn2201_fan_items_data),
> -		.inversed = 1,
> -		.health = false,
> -	},
> -	{
> -		.data = nvsw_sn2201_sys_items_data,
> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF,
> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> -		.mask = NVSW_SN2201_CPLD_ASIC_MASK,
> -		.count = ARRAY_SIZE(nvsw_sn2201_sys_items_data),
> -		.inversed = 1,
> -		.health = false,
> -	},
> -};
> -
> -static
> -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_hotplug = {
> -	.items = nvsw_sn2201_items,
> -	.counter = ARRAY_SIZE(nvsw_sn2201_items),
> -	.cell = NVSW_SN2201_SYS_INT_STATUS_OFFSET,
> -	.mask = NVSW_SN2201_CPLD_AGGR_MASK_DEF,
> -};
> -
> -/* SN2201 static devices. */
> -static struct i2c_board_info nvsw_sn2201_static_devices[] = {
> -	{
> -		I2C_BOARD_INFO("24c02", 0x57),
> -	},
> -	{
> -		I2C_BOARD_INFO("lm75", 0x4b),
> -	},
> -	{
> -		I2C_BOARD_INFO("24c64", 0x56),
> -	},
> -	{
> -		I2C_BOARD_INFO("ads1015", 0x49),
> -	},
> -	{
> -		I2C_BOARD_INFO("pca9546", 0x71),
> -	},
> -	{
> -		I2C_BOARD_INFO("emc2305", 0x4d),
> -	},
> -	{
> -		I2C_BOARD_INFO("lm75", 0x49),
> -	},
> -	{
> -		I2C_BOARD_INFO("pca9555", 0x27),
> -	},
> -	{
> -		I2C_BOARD_INFO("powr1014", 0x37),
> -	},
> -	{
> -		I2C_BOARD_INFO("lm75", 0x4f),
> -	},
> -	{
> -		I2C_BOARD_INFO("pmbus", 0x40),
> -	},
> -};
> -
> -/* SN2201 default static board info. */
> -static struct mlxreg_hotplug_device nvsw_sn2201_static_brdinfo[] = {
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[0],
> -		.nr = NVSW_SN2201_MAIN_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[1],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[2],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[3],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[4],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH3_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[5],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[6],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[7],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[8],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[9],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
> -	},
> -	{
> -		.brdinfo = &nvsw_sn2201_static_devices[10],
> -		.nr = NVSW_SN2201_MAIN_MUX_CH7_NR,
> -	},
> -};
> -
> -/* LED default data. */
> -static struct mlxreg_core_data nvsw_sn2201_led_data[] = {
> -	{
> -		.label = "status:green",
> -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "status:orange",
> -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "psu:green",
> -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "psu:orange",
> -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "uid:blue",
> -		.reg = NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "fan1:green",
> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "fan1:orange",
> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "fan2:green",
> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> -		.mask = GENMASK(3, 0),
> -	},
> -	{
> -		.label = "fan2:orange",
> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> -		.mask = GENMASK(3, 0),
> -	},
> -	{
> -		.label = "fan3:green",
> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "fan3:orange",
> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> -		.mask = GENMASK(7, 4),
> -	},
> -	{
> -		.label = "fan4:green",
> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> -		.mask = GENMASK(3, 0),
> -	},
> -	{
> -		.label = "fan4:orange",
> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> -		.mask = GENMASK(3, 0),
> -	},
> -};
> -
> -static struct mlxreg_core_platform_data nvsw_sn2201_led = {
> -	.data = nvsw_sn2201_led_data,
> -	.counter = ARRAY_SIZE(nvsw_sn2201_led_data),
> -};
> -
> -/* Default register access data. */
> -static struct mlxreg_core_data nvsw_sn2201_io_data[] = {
> -	{
> -		.label = "cpld1_version",
> -		.reg = NVSW_SN2201_CPLD_VER_OFFSET,
> -		.bit = GENMASK(7, 0),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "cpld1_version_min",
> -		.reg = NVSW_SN2201_CPLD_MVER_OFFSET,
> -		.bit = GENMASK(7, 0),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "cpld1_pn",
> -		.reg = NVSW_SN2201_CPLD_PN_OFFSET,
> -		.bit = GENMASK(15, 0),
> -		.mode = 0444,
> -		.regnum = 2,
> -	},
> -	{
> -		.label = "psu1_on",
> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(0),
> -		.mode = 0644,
> -	},
> -	{
> -		.label = "psu2_on",
> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(1),
> -		.mode = 0644,
> -	},
> -	{
> -		.label = "pwr_cycle",
> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(2),
> -		.mode = 0644,
> -	},
> -	{
> -		.label = "asic_health",
> -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
> -		.mask = GENMASK(4, 3),
> -		.bit = 4,
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "qsfp_pwr_good",
> -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(0),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "phy_reset",
> -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(3),
> -		.mode = 0644,
> -	},
> -	{
> -		.label = "mac_reset",
> -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(2),
> -		.mode = 0644,
> -	},
> -	{
> -		.label = "pwr_down",
> -		.reg = NVSW_SN2201_RST_SW_CTRL_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(0),
> -		.mode = 0644,
> -	},
> -	{
> -		.label = "reset_long_pb",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(0),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_short_pb",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(1),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_aux_pwr_or_fu",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(2),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_swb_dc_dc_pwr_fail",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(3),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_sw_reset",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(4),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_fw_reset",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(5),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_swb_wd",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(6),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_asic_thermal",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(7),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_system",
> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(1),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_sw_pwr_off",
> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(2),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_cpu_pwr_fail_thermal",
> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(4),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_reload_bios",
> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(5),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "reset_ac_pwr_fail",
> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(6),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "psu1",
> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(0),
> -		.mode = 0444,
> -	},
> -	{
> -		.label = "psu2",
> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(1),
> -		.mode = 0444,
> -	},
> -};
> -
> -static struct mlxreg_core_platform_data nvsw_sn2201_regs_io = {
> -	.data = nvsw_sn2201_io_data,
> -	.counter = ARRAY_SIZE(nvsw_sn2201_io_data),
> -};
> -
> -/* Default watchdog data. */
> -static struct mlxreg_core_data nvsw_sn2201_wd_data[] = {
> -	{
> -		.label = "action",
> -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
> -		.mask = GENMASK(7, 1),
> -		.bit = 0,
> -	},
> -	{
> -		.label = "timeout",
> -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
> -		.mask = 0,
> -		.health_cntr = NVSW_SN2201_WD_DFLT_TIMEOUT,
> -	},
> -	{
> -		.label = "timeleft",
> -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
> -		.mask = 0,
> -	},
> -	{
> -		.label = "ping",
> -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
> -		.mask = GENMASK(7, 1),
> -		.bit = 0,
> -	},
> -	{
> -		.label = "reset",
> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> -		.mask = GENMASK(7, 0) & ~BIT(6),
> -		.bit = 6,
> -	},
> -};
> -
> -static struct mlxreg_core_platform_data nvsw_sn2201_wd = {
> -	.data = nvsw_sn2201_wd_data,
> -	.counter = ARRAY_SIZE(nvsw_sn2201_wd_data),
> -	.version = MLX_WDT_TYPE3,
> -	.identity = "mlx-wdt-main",
> -};
> -
> -static int
> -nvsw_sn2201_create_static_devices(struct nvsw_sn2201 *nvsw_sn2201,
> -				  struct mlxreg_hotplug_device *devs,
> -				  int size)
> -{
> -	struct mlxreg_hotplug_device *dev = devs;
> -	int i;
> -
> -	/* Create I2C static devices. */
> -	for (i = 0; i < size; i++, dev++) {
> -		dev->client = i2c_new_client_device(dev->adapter, dev->brdinfo);
> -		if (IS_ERR(dev->client)) {
> -			dev_err(nvsw_sn2201->dev, "Failed to create client %s at bus %d at addr 0x%02x\n",
> -				dev->brdinfo->type,
> -				dev->nr, dev->brdinfo->addr);
> -
> -			dev->adapter = NULL;
> -			goto fail_create_static_devices;
> -		}
> -	}
> -
> -	return 0;
> -
> -fail_create_static_devices:
> -	while (--i >= 0) {
> -		dev = devs + i;
> -		i2c_unregister_device(dev->client);
> -		dev->client = NULL;
> -		dev->adapter = NULL;
> -	}
> -	return IS_ERR(dev->client);
> -}
> -
> -static void nvsw_sn2201_destroy_static_devices(struct nvsw_sn2201 *nvsw_sn2201,
> -					       struct mlxreg_hotplug_device *devs, int size)
> -{
> -	struct mlxreg_hotplug_device *dev = devs;
> -	int i;
> -
> -	/* Destroy static I2C device for SN2201 static devices. */
> -	for (i = 0; i < size; i++, dev++) {
> -		if (dev->client) {
> -			i2c_unregister_device(dev->client);
> -			dev->client = NULL;
> -			i2c_put_adapter(dev->adapter);
> -			dev->adapter = NULL;
> -		}
> -	}
> -}
> -
> -static int nvsw_sn2201_config_post_init(struct nvsw_sn2201 *nvsw_sn2201)
> -{
> -	struct mlxreg_hotplug_device *sn2201_dev;
> -	struct i2c_adapter *adap;
> -	struct device *dev;
> -	int i, j, err;
> -
> -	dev = nvsw_sn2201->dev;
> -	adap = i2c_get_adapter(nvsw_sn2201->main_mux_deferred_nr);
> -	if (!adap) {
> -		dev_err(dev, "Failed to get adapter for bus %d\n",
> -			nvsw_sn2201->main_mux_deferred_nr);
> -		return -ENODEV;
> -	}
> -	i2c_put_adapter(adap);
> -
> -	/* Update board info. */
> -	sn2201_dev = nvsw_sn2201->sn2201_devs;
> -	for (i = 0, j = 0; i < nvsw_sn2201->sn2201_devs_num; i++, sn2201_dev++) {
> -		sn2201_dev->adapter = i2c_get_adapter(sn2201_dev->nr);
> -		if (!sn2201_dev->adapter)
> -			return -ENODEV;
> -		i2c_put_adapter(sn2201_dev->adapter);
> -	}
> -
> -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201, nvsw_sn2201->sn2201_devs,
> -						nvsw_sn2201->sn2201_devs_num);
> -	if (err)
> -		dev_err(dev, "Failed to create static devices\n");
> -
> -	return err;
> -}
> -
> -static int nvsw_sn2201_config_init(struct nvsw_sn2201 *nvsw_sn2201, void *regmap)
> -{
> -	struct device *dev = nvsw_sn2201->dev;
> -	int err;
> -
> -	nvsw_sn2201->io_data = &nvsw_sn2201_regs_io;
> -	nvsw_sn2201->led_data = &nvsw_sn2201_led;
> -	nvsw_sn2201->wd_data = &nvsw_sn2201_wd;
> -	nvsw_sn2201->hotplug_data = &nvsw_sn2201_hotplug;
> -
> -	/* Register IO access driver. */
> -	if (nvsw_sn2201->io_data) {
> -		nvsw_sn2201->io_data->regmap = regmap;
> -		nvsw_sn2201->io_regs =
> -		platform_device_register_resndata(dev, "mlxreg-io", PLATFORM_DEVID_NONE, NULL, 0,
> -						  nvsw_sn2201->io_data,
> -						  sizeof(*nvsw_sn2201->io_data));
> -		if (IS_ERR(nvsw_sn2201->io_regs)) {
> -			err = PTR_ERR(nvsw_sn2201->io_regs);
> -			goto fail_register_io;
> -		}
> -	}
> -
> -	/* Register LED driver. */
> -	if (nvsw_sn2201->led_data) {
> -		nvsw_sn2201->led_data->regmap = regmap;
> -		nvsw_sn2201->led =
> -		platform_device_register_resndata(dev, "leds-mlxreg", PLATFORM_DEVID_NONE, NULL, 0,
> -						  nvsw_sn2201->led_data,
> -						  sizeof(*nvsw_sn2201->led_data));
> -		if (IS_ERR(nvsw_sn2201->led)) {
> -			err = PTR_ERR(nvsw_sn2201->led);
> -			goto fail_register_led;
> -		}
> -	}
> -
> -	/* Register WD driver. */
> -	if (nvsw_sn2201->wd_data) {
> -		nvsw_sn2201->wd_data->regmap = regmap;
> -		nvsw_sn2201->wd =
> -		platform_device_register_resndata(dev, "mlx-wdt", PLATFORM_DEVID_NONE, NULL, 0,
> -						  nvsw_sn2201->wd_data,
> -						  sizeof(*nvsw_sn2201->wd_data));
> -		if (IS_ERR(nvsw_sn2201->wd)) {
> -			err = PTR_ERR(nvsw_sn2201->wd);
> -			goto fail_register_wd;
> -		}
> -	}
> -
> -	/* Register hotplug driver. */
> -	if (nvsw_sn2201->hotplug_data) {
> -		nvsw_sn2201->hotplug_data->regmap = regmap;
> -		nvsw_sn2201->pdev_hotplug =
> -		platform_device_register_resndata(dev, "mlxreg-hotplug", PLATFORM_DEVID_NONE,
> -						  nvsw_sn2201_cpld_res,
> -						  ARRAY_SIZE(nvsw_sn2201_cpld_res),
> -						  nvsw_sn2201->hotplug_data,
> -						  sizeof(*nvsw_sn2201->hotplug_data));
> -		if (IS_ERR(nvsw_sn2201->pdev_hotplug)) {
> -			err = PTR_ERR(nvsw_sn2201->pdev_hotplug);
> -			goto fail_register_hotplug;
> -		}
> -	}
> -
> -	return nvsw_sn2201_config_post_init(nvsw_sn2201);
> -
> -fail_register_hotplug:
> -	if (nvsw_sn2201->wd)
> -		platform_device_unregister(nvsw_sn2201->wd);
> -fail_register_wd:
> -	if (nvsw_sn2201->led)
> -		platform_device_unregister(nvsw_sn2201->led);
> -fail_register_led:
> -	if (nvsw_sn2201->io_regs)
> -		platform_device_unregister(nvsw_sn2201->io_regs);
> -fail_register_io:
> -
> -	return err;
> -}
> -
> -static void nvsw_sn2201_config_exit(struct nvsw_sn2201 *nvsw_sn2201)
> -{
> -	/* Unregister hotplug driver. */
> -	if (nvsw_sn2201->pdev_hotplug)
> -		platform_device_unregister(nvsw_sn2201->pdev_hotplug);
> -	/* Unregister WD driver. */
> -	if (nvsw_sn2201->wd)
> -		platform_device_unregister(nvsw_sn2201->wd);
> -	/* Unregister LED driver. */
> -	if (nvsw_sn2201->led)
> -		platform_device_unregister(nvsw_sn2201->led);
> -	/* Unregister IO access driver. */
> -	if (nvsw_sn2201->io_regs)
> -		platform_device_unregister(nvsw_sn2201->io_regs);
> -}
> -
> -/* 
> - * Initialization is divided into two parts:
> - * - I2C main bus init.
> - * - Mux creation and attaching devices to the mux, 
> - *   which assumes that the main bus is already created.
> - * This separation is required for synchronization between these two parts. 
> - * Completion notify callback is used to make this flow synchronized.
> - */ 
> -static int nvsw_sn2201_i2c_completion_notify(void *handle, int id)
> -{
> -	struct nvsw_sn2201 *nvsw_sn2201 = handle;
> -	void *regmap;
> -	int i, err;
> -
> -	/* Create main mux. */
> -	nvsw_sn2201->main_mux_devs->adapter = i2c_get_adapter(nvsw_sn2201->main_mux_devs->nr);
> -	if (!nvsw_sn2201->main_mux_devs->adapter) {
> -		err = -ENODEV;
> -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus %d\n",
> -			nvsw_sn2201->cpld_devs->nr);
> -		goto i2c_get_adapter_main_fail;
> -	}
> -
> -	nvsw_sn2201->main_mux_devs_num = ARRAY_SIZE(nvsw_sn2201_main_mux_brdinfo);
> -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201, nvsw_sn2201->main_mux_devs,
> -						nvsw_sn2201->main_mux_devs_num);
> -	if (err) {
> -		dev_err(nvsw_sn2201->dev, "Failed to create main mux devices\n");
> -		goto nvsw_sn2201_create_static_devices_fail;
> -	}
> -
> -	nvsw_sn2201->cpld_devs->adapter = i2c_get_adapter(nvsw_sn2201->cpld_devs->nr);
> -	if (!nvsw_sn2201->cpld_devs->adapter) {
> -		err = -ENODEV;
> -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus %d\n",
> -			nvsw_sn2201->cpld_devs->nr);
> -		goto i2c_get_adapter_fail;
> -	}
> -
> -	/* Create CPLD device. */
> -	nvsw_sn2201->cpld_devs->client = i2c_new_dummy_device(nvsw_sn2201->cpld_devs->adapter,
> -							      NVSW_SN2201_CPLD_I2CADDR);
> -	if (IS_ERR(nvsw_sn2201->cpld_devs->client)) {
> -		err = PTR_ERR(nvsw_sn2201->cpld_devs->client);
> -		dev_err(nvsw_sn2201->dev, "Failed to create %s cpld device at bus %d at addr 0x%02x\n",
> -			nvsw_sn2201->cpld_devs->brdinfo->type, nvsw_sn2201->cpld_devs->nr,
> -			nvsw_sn2201->cpld_devs->brdinfo->addr);
> -		goto i2c_new_dummy_fail;
> -	}
> -
> -	regmap = devm_regmap_init_i2c(nvsw_sn2201->cpld_devs->client, &nvsw_sn2201_regmap_conf);
> -	if (IS_ERR(regmap)) {
> -		err = PTR_ERR(regmap);
> -		dev_err(nvsw_sn2201->dev, "Failed to initialise managed register map\n");
> -		goto devm_regmap_init_i2c_fail;
> -	}
> -
> -	/* Set default registers. */
> -	for (i = 0; i < nvsw_sn2201_regmap_conf.num_reg_defaults; i++) {
> -		err = regmap_write(regmap, nvsw_sn2201_regmap_default[i].reg,
> -				   nvsw_sn2201_regmap_default[i].def);
> -		if (err) {
> -			dev_err(nvsw_sn2201->dev, "Failed to set register at offset 0x%02x to default value: 0x%02x\n",
> -				nvsw_sn2201_regmap_default[i].reg,
> -				nvsw_sn2201_regmap_default[i].def);
> -			goto regmap_write_fail;
> -		}
> -	}
> -
> -	/* Sync registers with hardware. */
> -	regcache_mark_dirty(regmap);
> -	err = regcache_sync(regmap);
> -	if (err) {
> -		dev_err(nvsw_sn2201->dev, "Failed to Sync registers with hardware\n");
> -		goto regcache_sync_fail;
> -	}
> -
> -	/* Configure SN2201 board. */
> -	err = nvsw_sn2201_config_init(nvsw_sn2201, regmap);
> -	if (err) {
> -		dev_err(nvsw_sn2201->dev, "Failed to configure board\n");
> -		goto nvsw_sn2201_config_init_fail;
> -	}
> -
> -	return 0;
> -
> -nvsw_sn2201_config_init_fail:
> -	nvsw_sn2201_config_exit(nvsw_sn2201);
> -regcache_sync_fail:
> -regmap_write_fail:
> -devm_regmap_init_i2c_fail:
> -i2c_new_dummy_fail:
> -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
> -	nvsw_sn2201->cpld_devs->adapter = NULL;
> -i2c_get_adapter_fail:
> -	/* Destroy SN2201 static I2C devices. */
> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201->sn2201_devs,
> -					   nvsw_sn2201->sn2201_devs_num);
> -	/* Destroy main mux device. */
> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201->main_mux_devs,
> -					   nvsw_sn2201->main_mux_devs_num);
> -nvsw_sn2201_create_static_devices_fail:
> -	i2c_put_adapter(nvsw_sn2201->main_mux_devs->adapter);
> -i2c_get_adapter_main_fail:
> -	return err;
> -}
> -
> -static int nvsw_sn2201_config_pre_init(struct nvsw_sn2201 *nvsw_sn2201)
> -{
> -	nvsw_sn2201->i2c_data = &nvsw_sn2201_i2c_data;
> -
> -	/* Register I2C controller. */
> -	nvsw_sn2201->i2c_data->handle = nvsw_sn2201;
> -	nvsw_sn2201->i2c_data->completion_notify = nvsw_sn2201_i2c_completion_notify;
> -	nvsw_sn2201->pdev_i2c = platform_device_register_resndata(nvsw_sn2201->dev, "i2c_mlxcpld",
> -								  NVSW_SN2201_MAIN_MUX_NR,
> -								  nvsw_sn2201_lpc_res,
> -								  ARRAY_SIZE(nvsw_sn2201_lpc_res),
> -								  nvsw_sn2201->i2c_data,
> -								  sizeof(*nvsw_sn2201->i2c_data));
> -	if (IS_ERR(nvsw_sn2201->pdev_i2c))
> -		return PTR_ERR(nvsw_sn2201->pdev_i2c);
> -
> -	return 0;
> -}
> -
> -static int nvsw_sn2201_probe(struct platform_device *pdev)
> -{
> -	struct nvsw_sn2201 *nvsw_sn2201;
> -
> -	nvsw_sn2201 = devm_kzalloc(&pdev->dev, sizeof(*nvsw_sn2201), GFP_KERNEL);
> -	if (!nvsw_sn2201)
> -		return -ENOMEM;
> -
> -	nvsw_sn2201->dev = &pdev->dev;
> -	platform_set_drvdata(pdev, nvsw_sn2201);
> -	platform_device_add_resources(pdev, nvsw_sn2201_lpc_io_resources,
> -				      ARRAY_SIZE(nvsw_sn2201_lpc_io_resources));
> -
> -	nvsw_sn2201->main_mux_deferred_nr = NVSW_SN2201_MAIN_MUX_DEFER_NR;
> -	nvsw_sn2201->main_mux_devs = nvsw_sn2201_main_mux_brdinfo;
> -	nvsw_sn2201->cpld_devs = nvsw_sn2201_cpld_brdinfo;
> -	nvsw_sn2201->sn2201_devs = nvsw_sn2201_static_brdinfo;
> -	nvsw_sn2201->sn2201_devs_num = ARRAY_SIZE(nvsw_sn2201_static_brdinfo);
> -
> -	return nvsw_sn2201_config_pre_init(nvsw_sn2201);
> -}
> -
> -static int nvsw_sn2201_remove(struct platform_device *pdev)
> -{
> -	struct nvsw_sn2201 *nvsw_sn2201 = platform_get_drvdata(pdev);
> -
> -	/* Unregister underlying drivers. */
> -	nvsw_sn2201_config_exit(nvsw_sn2201);
> -
> -	/* Destroy SN2201 static I2C devices. */
> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
> -					   nvsw_sn2201->sn2201_devs,
> -					   nvsw_sn2201->sn2201_devs_num);
> -
> -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
> -	nvsw_sn2201->cpld_devs->adapter = NULL;
> -	/* Destroy main mux device. */
> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
> -					   nvsw_sn2201->main_mux_devs,
> -					   nvsw_sn2201->main_mux_devs_num);
> -
> -	/* Unregister I2C controller. */
> -	if (nvsw_sn2201->pdev_i2c)
> -		platform_device_unregister(nvsw_sn2201->pdev_i2c);
> -
> -	return 0;
> -}
> -
> -static const struct acpi_device_id nvsw_sn2201_acpi_ids[] = {
> -	{"NVSN2201", 0},
> -	{}
> -};
> -
> -MODULE_DEVICE_TABLE(acpi, nvsw_sn2201_acpi_ids);
> -
> -static struct platform_driver nvsw_sn2201_driver = {
> -	.probe = nvsw_sn2201_probe,
> -	.remove = nvsw_sn2201_remove,
> -	.driver = {
> -		.name = "nvsw-sn2201",
> -	.acpi_match_table = nvsw_sn2201_acpi_ids,
> -	},
> -};
> -
> -module_platform_driver(nvsw_sn2201_driver);
> -
> -MODULE_AUTHOR("Nvidia");
> -MODULE_DESCRIPTION("Nvidia sn2201 platform driver");
> -MODULE_LICENSE("Dual BSD/GPL");
> -MODULE_ALIAS("platform:nvsw-sn2201");
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
> +Date:		June 2018
> +KernelVersion:	4.19
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	This file shows ASIC health status. The possible values are:
> +		0 - health failed, 2 - health OK, 3 - ASIC in booting state.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
> +Date:		June 2018
> +KernelVersion:	4.19
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show with which CPLD versions have been burned
> +		on carrier and switch boards.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
> +Date:		December 2018
> +KernelVersion:	5.0
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	This file shows the system fans direction:
> +		forward direction - relevant bit is set 0;
> +		reversed direction - relevant bit is set 1.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
> +Date:		November 2018
> +KernelVersion:	5.0
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show with which CPLD versions have been burned
> +		on LED or Gearbox board.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
> +Date:		November 2018
> +KernelVersion:	5.0
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files enable and disable the access to the JTAG domain.
> +		By default access to the JTAG domain is disabled.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
> +Date:		June 2018
> +KernelVersion:	4.19
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	This file allows iio devices selection.
> +
> +		Attribute select_iio can be written with 0 or with 1. It
> +		selects which one of iio devices can be accessed.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
> +		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
> +		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
> +		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
> +Date:		June 2018
> +KernelVersion:	4.19
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files allow asserting system power cycling, switching
> +		power supply units on and off and system's main power domain
> +		shutdown.
> +		Expected behavior:
> +		When pwr_cycle is written 1: auxiliary power domain will go
> +		down and after short period (about 1 second) up.
> +		When  psu1_on or psu2_on is written 1, related unit will be
> +		disconnected from the power source, when written 0 - connected.
> +		If both are written 1 - power supplies main power domain will
> +		go down.
> +		When pwr_down is written 1, system's main power domain will go
> +		down.
> +
> +		The files are write only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_aux_pwr_or_ref
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_asic_thermal
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_halt
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_wd
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_fw_reset
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pb
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_main_pwr_fail
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_short_pb
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_reset
> +Date:		June 2018
> +KernelVersion:	4.19
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show the system reset cause, as following: power
> +		auxiliary outage or power refresh, ASIC thermal shutdown, halt,
> +		hotswap, watchdog, firmware reset, long press power button,
> +		short press power button, software reset. Value 1 in file means
> +		this is reset cause, 0 - otherwise. Only one of the above
> +		causes could be 1 at the same time, representing only last
> +		reset cause.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_pwr_fail
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_comex
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
> +Date:		November 2018
> +KernelVersion:	5.0
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show the system reset cause, as following: ComEx
> +		power fail, reset from ComEx, system platform reset, reset
> +		due to voltage monitor devices upgrade failure,
> +		Value 1 in file means this is reset cause, 0 - otherwise.
> +		Only one bit could be 1 at the same time, representing only
> +		the last reset cause.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
> +Date:		November 2018
> +KernelVersion:	5.0
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show with which CPLD versions have been burned
> +		on LED board.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
> +Date:		June 2019
> +KernelVersion:	5.3
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show the system reset cause, as following:
> +		COMEX thermal shutdown; wathchdog power off or reset was derived
> +		by one of the next components: COMEX, switch board or by Small Form
> +		Factor mezzanine, reset requested from ASIC, reset caused by BIOS
> +		reload. Value 1 in file means this is reset cause, 0 - otherwise.
> +		Only one of the above causes could be 1 at the same time, representing
> +		only last reset cause.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
> +Date:		January 2020
> +KernelVersion:	5.6
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show system static topology identification
> +		like system's static I2C topology, number and type of FPGA
> +		devices within the system and so on.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_ac_pwr_fail
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_platform
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off
> +Date:		January 2020
> +KernelVersion:	5.6
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show the system reset causes, as following: reset
> +		due to AC power failure, reset invoked from software by
> +		assertion reset signal through CPLD. reset caused by signal
> +		asserted by SOC through ACPI register, reset invoked from
> +		software by assertion power off signal through CPLD.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
> +Date:		January 2020
> +KernelVersion:	5.6
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	This file allows to retain ASIC up during PCIe root complex
> +		reset, when attribute is set 1.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
> +Date:		January 2020
> +KernelVersion:	5.6
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	This file allows to overwrite system VPD hardware write
> +		protection when attribute is set 1.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
> +Date:		January 2020
> +KernelVersion:	5.6
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	This file exposes the configuration update status of burnable
> +		voltage regulator devices. The status values are as following:
> +		0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
> +
> +		The file is read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
> +Date:		January 2020
> +KernelVersion:	5.6
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	This file exposes the firmware version of burnable voltage
> +		regulator devices.
> +
> +		The file is read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_pn
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_pn
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_pn
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_pn
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version_min
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version_min
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version_min
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version_min
> +Date:		July 2020
> +KernelVersion:	5.9
> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> +Description:	These files show with which CPLD part numbers and minor
> +		versions have been burned CPLD devices equipped on a
> +		system.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/bios_active_image
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/bios_auth_fail
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/bios_upgrade_fail
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	The files represent BIOS statuses:
> +
> +		bios_active_image: location of current active BIOS image:
> +		0: Top, 1: Bottom.
> +		The reported value should correspond to value expected by OS
> +		in case of BIOS safe mode is 0. This bit is related to Intel
> +		top-swap feature of DualBios on the same flash.
> +
> +		bios_auth_fail: BIOS upgrade is failed because provided BIOS
> +		image is not signed correctly.
> +
> +		bios_upgrade_fail: BIOS upgrade is failed by some other
> +		reason not because authentication. For example due to
> +		physical SPI flash problem.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc1_enable
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc2_enable
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc3_enable
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc4_enable
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc5_enable
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc6_enable
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc7_enable
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc8_enable
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files allow line cards enable state control.
> +		Expected behavior:
> +		When  lc{n}_enable is written 1, related line card is released
> +		from the reset state, when 0 - is hold in reset state.
> +
> +		The files are read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc1_pwr
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc2_pwr
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc3_pwr
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc4_pwr
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc5_pwr
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc6_pwr
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc7_pwr
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc8_pwr
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files switching line cards power on and off.
> +		Expected behavior:
> +		When  lc{n}_pwr is written 1, related line card is powered
> +		on, when written 0 - powered off.
> +
> +		The files are read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc1_rst_mask
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc2_rst_mask
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc3_rst_mask
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc4_rst_mask
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc5_rst_mask
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc6_rst_mask
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc7_rst_mask
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc8_rst_mask
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files clear line card reset bit enforced by ASIC, when it
> +		sets it due to some abnormal ASIC behavior.
> +		Expected behavior:
> +		When lc{n}_rst_mask is written 1, related line card reset bit
> +		is cleared, when written 0 - no effect.
> +
> +		The files are write only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/os_started
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	This file, when written 1, indicates to programmable devices
> +		that OS is taking control over it.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pm_mgmt_en
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	This file assigns power management control ownership.
> +		When power management control is provided by hardware, hardware
> +		will automatically power off one or more line previously
> +		powered line cards in case system power budget is getting
> +		insufficient. It could be in case when some of power units lost
> +		power good state.
> +		When pm_mgmt_en is written 1, power management control by
> +		software is enabled, 0 - power management control by hardware.
> +		Note that for any setting of pm_mgmt_en attribute hardware will
> +		not allow to power on any new line card in case system power
> +		budget is insufficient.
> +		Same in case software will try to power on several line cards
> +		at once - hardware will power line cards while system has
> +		enough power budget.
> +		Default is 0.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu3_on
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu4_on
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files switching power supply units on and off.
> +		Expected behavior:
> +		When  psu3_on or psu4_on is written 1, related unit will be
> +		disconnected from the power source, when written 0 - connected.
> +
> +		The files are write only.
> +
> +What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/shutdown_unlock
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	This file allows to unlock ASIC after thermal shutdown event.
> +		When system thermal shutdown is enforced by ASIC, ASIC is
> +		getting locked and after system boot it will not be available.
> +		Software can decide to unlock it by setting this attribute to
> +		1 and then perform system power cycle by setting pwr_cycle
> +		attribute to 1 (power cycle of main power domain).
> +		Before setting shutdown_unlock to 1 it is recommended to
> +		validate that system reboot cause is reset_asic_thermal or
> +		reset_thermal_spc_or_pciesw.
> +		In case shutdown_unlock is not set 1, the only way to release
> +		ASIC from locking - is full system power cycle through the
> +		external power distribution unit.
> +		Default is 1.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_pn
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version_min
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files show with which CPLD major and minor versions
> +		and part number has been burned CPLD device on line card.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_pn
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version_min
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files show with which FPGA major and minor versions
> +		and part number has been burned FPGA device on line card.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/vpd_wp
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	This file allow to overwrite line card VPD hardware write
> +		protection mode. When attribute is set 1 - write protection is
> +		disabled, when 0 - enabled.
> +		Default is 0.
> +		If the system is in locked-down mode writing this file will not
> +		be allowed.
> +		The purpose if this file is to allow line card VPD burning
> +		during production flow.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_aux_pwr_or_ref
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_dc_dc_pwr_fail
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_fpga_not_done
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_from_chassis
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_line_card
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_pwr_off_from_chassis
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files show the line reset cause, as following: power
> +		auxiliary outage or power refresh, DC-to-DC power failure, FPGA reset
> +		failed, line card reset failed, power off from chassis.
> +		Value 1 in file means this is reset cause, 0 - otherwise. Only one of
> +		the above causes could be 1 at the same time, representing only last
> +		reset cause.
> +
> +		The files are read only.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld_upgrade_en
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_upgrade_en
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files allow CPLD and FPGA burning. Value 1 in file means burning
> +		is enabled, 0 - otherwise.
> +		If the system is in locked-down mode writing these files will
> +		not be allowed.
> +		The purpose of these files to allow line card CPLD and FPGA
> +		upgrade through the JTAG daisy-chain.
> +
> +		The files are read/write.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/qsfp_pwr_en
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/pwr_en
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files allow to power on/off all QSFP ports and whole line card.
> +		The attributes are set 1 for power on, 0 - for power off.
> +
> +		The files are read/write.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/agb_spi_burn_en
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_spi_burn_en
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files allow gearboxes and FPGA SPI flash burning.
> +		The attributes are set 1 to enable burning, 0 - to disable.
> +		If the system is in locked-down mode writing these files will
> +		not be allowed.
> +		The purpose of these files to allow line card Gearboxes and FPGA
> +		burning during production flow.
> +
> +		The file is read/write.
> +
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/max_power
> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/config
> +Date:		October 2021
> +KernelVersion:	5.16
> +Contact:	Vadim Pasternak <[e-mail]>
> +Description:	These files provide the maximum powered required for line card
> +		feeding and line card configuration Id.
> +
> +		The files are read only.
> +
> +What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/phy_reset
> +Date:           May 2022
> +KernelVersion:  5.19
> +Contact:        Vadim Pasternak <vadimpmellanox.com>
> +Description:    This file allows to reset PHY 88E1548 when attribute is set 0
> +                due to some abnormal PHY behavior.
> +                Expected behavior:
> +                When phy_reset is written 1, all PHY 88E1548 are released
> +                from the reset state, when 0 - are hold in reset state.
> +
> +                The files are read/write.
> +
> +What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/mac_reset
> +Date:           May 2022
> +KernelVersion:  5.19
> +Contact:        Vadim Pasternak <vadimpmellanox.com>
> +Description:    This file allows to reset ASIC MT52132 when attribute is set 0
> +                due to some abnormal ASIC behavior.
> +                Expected behavior:
> +                When mac_reset is written 1, the ASIC MT52132 is released
> +                from the reset state, when 0 - is hold in reset state.
> +
> +                The files are read/write.
> +
> +What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/qsfp_pwr_good
> +Date:           May 2022
> +KernelVersion:  5.19
> +Contact:        Vadim Pasternak <vadimpmellanox.com>
> +Description:    This file shows QSFP ports power status. The value is set to 0
> +                when one of any QSFP ports is plugged. The value is set to 1 when
> +                there are no any QSFP ports are plugged.
> +                The possible values are:
> +                0 - Power good, 1 - Not power good.
> +
> +                The files are read only.

Michael Shych May 11, 2022, 2:58 p.m. UTC | #2

Hi Hans,

I'm sorry for this form of patchset.
It definitely was tested by checkpatch but we have several rounds of
Internal reviews and looks that on some step patches have these errors.
Should I resubmit all series?

Regards,
    Michael.


> -----Original Message-----
> From: Hans de Goede <[e-mail]>
> Sent: Wednesday, May 11, 2022 5:41 PM
> To: Michael Shych <[e-mail]>
> Cc: [e-mail]; Vadim Pasternak
> <[e-mail]>
> Subject: Re: [PATCH v1 3/3] Documentation/ABI: Add new attributes for
> mlxreg-io sysfs interfaces
> 
> Hi,
> 
> On 4/30/22 13:58, [e-mail] wrote:
> > From: Michael Shych <[e-mail]>
> >
> > Add documentation for the new attributes:
> > - "phy_reset" - Reset PHY.
> > - "mac_reset" - Reset MAC.
> > - "qsfp_pwr_good" - The power status of QSFP ports.
> >
> > Signed-off-by: Michael Shych <[e-mail]>
> > Reviewed-by: Vadim Pasternak <[e-mail]>
> 
> Something has gone seriously wrong with preparing this
> patch. It seems that the new intended contents of
> Documentation/ABI/stable/sysfs-driver-mlxreg-io
> was written over drivers/platform/mellanox/nvsw-sn2201.c
> and then the result was commited and worse submitted
> upstream.
> 
> Next time please do a dummy run before submitting
> patches upstream like this:
> 
> 1. Run "git format patch HEAD~3" (3 because this time there were 3 patches)
> 2. Run "scripts/checkpatch.pl 00*" and check for issues
> 3. Run "$EDITOR 00*" and manually check if things are as they should be.
> 
> I've fixed this up now by taking the last 3 documentation
> entries from drivers/platform/mellanox/nvsw-sn2201.c after
> applying this patch (which rewrites it into a documentation
> file) and adding those at the end of:
> Documentation/ABI/stable/sysfs-driver-mlxreg-io
> 
> I also had to manually fix the indentation of the 3 new
> entries using spaces everywhere where as the existing
> file uses tabs everywhere.
> 
> Once I'm done running some local tests I will push this to:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-
> x86.git/log/?h=review-hans
> 
> Please double check (once pushed) that the documentation
> commit is as it should be.
> 
> Regards,
> 
> Hans
> 
> 
> 
> 
> 
> > ---
> >  drivers/platform/mellanox/nvsw-sn2201.c | 1766 +++++++++------------------
> ----
> >  1 file changed, 505 insertions(+), 1261 deletions(-)
> >
> > diff --git a/drivers/platform/mellanox/nvsw-sn2201.c
> b/drivers/platform/mellanox/nvsw-sn2201.c
> > index e1ebd871da04..9e397c54dd85 100644
> > --- a/drivers/platform/mellanox/nvsw-sn2201.c
> > +++ b/drivers/platform/mellanox/nvsw-sn2201.c
> > @@ -1,1261 +1,505 @@
> > -// SPDX-License-Identifier: GPL-2.0+
> > -/*
> > - * Nvidia sn2201 driver
> > - *
> > - * Copyright (C) 2022 Nvidia Technologies Ltd.
> > - */
> > -
> > -#include <linux/device.h>
> > -#include <linux/i2c.h>
> > -#include <linux/interrupt.h>
> > -#include <linux/irq.h>
> > -#include <linux/gpio.h>
> > -#include <linux/module.h>
> > -#include <linux/platform_data/mlxcpld.h>
> > -#include <linux/platform_data/mlxreg.h>
> > -#include <linux/platform_device.h>
> > -#include <linux/regmap.h>
> > -
> > -/* SN2201 CPLD register offset. */
> > -#define NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR          0x2000
> > -#define NVSW_SN2201_CPLD_LPC_IO_RANGE               0x100
> > -#define NVSW_SN2201_HW_VER_ID_OFFSET                0x00
> > -#define NVSW_SN2201_BOARD_ID_OFFSET                 0x01
> > -#define NVSW_SN2201_CPLD_VER_OFFSET                 0x02
> > -#define NVSW_SN2201_CPLD_MVER_OFFSET                0x03
> > -#define NVSW_SN2201_CPLD_ID_OFFSET                  0x04
> > -#define NVSW_SN2201_CPLD_PN_OFFSET                  0x05
> > -#define NVSW_SN2201_CPLD_PN1_OFFSET                 0x06
> > -#define NVSW_SN2201_PSU_CTRL_OFFSET                 0x0a
> > -#define NVSW_SN2201_QSFP28_STATUS_OFFSET            0x0b
> > -#define NVSW_SN2201_QSFP28_INT_STATUS_OFFSET        0x0c
> > -#define NVSW_SN2201_QSFP28_LP_STATUS_OFFSET         0x0d
> > -#define NVSW_SN2201_QSFP28_RST_STATUS_OFFSET        0x0e
> > -#define NVSW_SN2201_SYS_STATUS_OFFSET               0x0f
> > -#define NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET       0x10
> > -#define NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET       0x12
> > -#define NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET       0x13
> > -#define NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET   0x14
> > -#define NVSW_SN2201_SYS_RST_STATUS_OFFSET           0x15
> > -#define NVSW_SN2201_SYS_INT_STATUS_OFFSET           0x21
> > -#define NVSW_SN2201_SYS_INT_MASK_OFFSET             0x22
> > -#define NVSW_SN2201_ASIC_STATUS_OFFSET              0x24
> > -#define NVSW_SN2201_ASIC_EVENT_OFFSET               0x25
> > -#define NVSW_SN2201_ASIC_MAKS_OFFSET                0x26
> > -#define NVSW_SN2201_THML_STATUS_OFFSET              0x27
> > -#define NVSW_SN2201_THML_EVENT_OFFSET               0x28
> > -#define NVSW_SN2201_THML_MASK_OFFSET                0x29
> > -#define NVSW_SN2201_PS_ALT_STATUS_OFFSET            0x2a
> > -#define NVSW_SN2201_PS_ALT_EVENT_OFFSET             0x2b
> > -#define NVSW_SN2201_PS_ALT_MASK_OFFSET              0x2c
> > -#define NVSW_SN2201_PS_PRSNT_STATUS_OFFSET          0x30
> > -#define NVSW_SN2201_PS_PRSNT_EVENT_OFFSET           0x31
> > -#define NVSW_SN2201_PS_PRSNT_MASK_OFFSET            0x32
> > -#define NVSW_SN2201_PS_DC_OK_STATUS_OFFSET          0x33
> > -#define NVSW_SN2201_PS_DC_OK_EVENT_OFFSET           0x34
> > -#define NVSW_SN2201_PS_DC_OK_MASK_OFFSET            0x35
> > -#define NVSW_SN2201_RST_CAUSE1_OFFSET               0x36
> > -#define NVSW_SN2201_RST_CAUSE2_OFFSET               0x37
> > -#define NVSW_SN2201_RST_SW_CTRL_OFFSET              0x38
> > -#define NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET         0x3a
> > -#define NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET          0x3b
> > -#define NVSW_SN2201_FAN_PRSNT_MASK_OFFSET           0x3c
> > -#define NVSW_SN2201_WD_TMR_OFFSET_LSB               0x40
> > -#define NVSW_SN2201_WD_TMR_OFFSET_MSB               0x41
> > -#define NVSW_SN2201_WD_ACT_OFFSET                   0x42
> > -#define NVSW_SN2201_FAN_LED1_CTRL_OFFSET            0x50
> > -#define NVSW_SN2201_FAN_LED2_CTRL_OFFSET            0x51
> > -#define NVSW_SN2201_REG_MAX                         0x52
> > -
> > -/* Number of physical I2C busses. */
> > -#define NVSW_SN2201_PHY_I2C_BUS_NUM		2
> > -/* Number of main mux channels. */
> > -#define NVSW_SN2201_MAIN_MUX_CHNL_NUM		8
> > -
> > -#define NVSW_SN2201_MAIN_NR			0
> > -#define NVSW_SN2201_MAIN_MUX_NR			1
> > -#define NVSW_SN2201_MAIN_MUX_DEFER_NR
> 	(NVSW_SN2201_PHY_I2C_BUS_NUM + \
> > -
> NVSW_SN2201_MAIN_MUX_CHNL_NUM - 1)
> > -
> > -#define NVSW_SN2201_MAIN_MUX_CH0_NR
> 	NVSW_SN2201_PHY_I2C_BUS_NUM
> > -#define NVSW_SN2201_MAIN_MUX_CH1_NR
> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 1)
> > -#define NVSW_SN2201_MAIN_MUX_CH2_NR
> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 2)
> > -#define NVSW_SN2201_MAIN_MUX_CH3_NR
> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 3)
> > -#define NVSW_SN2201_MAIN_MUX_CH5_NR
> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 5)
> > -#define NVSW_SN2201_MAIN_MUX_CH6_NR
> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 6)
> > -#define NVSW_SN2201_MAIN_MUX_CH7_NR
> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 7)
> > -
> > -#define NVSW_SN2201_CPLD_NR
> 	NVSW_SN2201_MAIN_MUX_CH0_NR
> > -#define NVSW_SN2201_NR_NONE		-1
> > -
> > -/* Masks for aggregation, PSU presence and power, ASIC events
> > - * in CPLD related registers.
> > - */
> > -#define NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF	0xe0
> > -#define NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF	0x04
> > -#define NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF	0x02
> > -#define NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF	0x10
> > -#define NVSW_SN2201_CPLD_AGGR_MASK_DEF      \
> > -	(NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF \
> > -	| NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF \
> > -	| NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF \
> > -	| NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF)
> > -
> > -#define NVSW_SN2201_CPLD_ASIC_MASK		GENMASK(3, 1)
> > -#define NVSW_SN2201_CPLD_PSU_MASK		GENMASK(1, 0)
> > -#define NVSW_SN2201_CPLD_PWR_MASK		GENMASK(1, 0)
> > -#define NVSW_SN2201_CPLD_FAN_MASK		GENMASK(3, 0)
> > -
> > -#define NVSW_SN2201_CPLD_SYSIRQ			26
> > -#define NVSW_SN2201_LPC_SYSIRQ			28
> > -#define NVSW_SN2201_CPLD_I2CADDR		0x41
> > -
> > -#define NVSW_SN2201_WD_DFLT_TIMEOUT		600
> > -
> > -/* nvsw_sn2201 - device private data
> > - * @dev: platform device;
> > - * @io_data: register access platform data;
> > - * @led_data: LED platform data;
> > - * @hotplug_data: hotplug platform data;
> > - * @i2c_data: I2C controller platform data;
> > - * @led: LED device;
> > - * @io_regs: register access device;
> > - * @pdev_hotplug: hotplug device;
> > - * @sn2201_devs: I2C devices for sn2201 devices;
> > - * @sn2201_devs_num: number of I2C devices for sn2201 device;
> > - * @main_mux_devs: I2C devices for main mux;
> > - * @main_mux_devs_num: number of I2C devices for main mux;
> > - * @cpld_devs: I2C devices for cpld;
> > - * @cpld_devs_num: number of I2C devices for cpld;
> > - * @main_mux_deferred_nr: I2C adapter number must be exist prior
> creating devices execution;
> > - */
> > -struct nvsw_sn2201 {
> > -	struct device *dev;
> > -	struct mlxreg_core_platform_data *io_data;
> > -	struct mlxreg_core_platform_data *led_data;
> > -	struct mlxreg_core_platform_data *wd_data;
> > -	struct mlxreg_core_hotplug_platform_data *hotplug_data;
> > -	struct mlxreg_core_hotplug_platform_data *i2c_data;
> > -	struct platform_device *led;
> > -	struct platform_device *wd;
> > -	struct platform_device *io_regs;
> > -	struct platform_device *pdev_hotplug;
> > -	struct platform_device *pdev_i2c;
> > -	struct mlxreg_hotplug_device *sn2201_devs;
> > -	int sn2201_devs_num;
> > -	struct mlxreg_hotplug_device *main_mux_devs;
> > -	int main_mux_devs_num;
> > -	struct mlxreg_hotplug_device *cpld_devs;
> > -	int cpld_devs_num;
> > -	int main_mux_deferred_nr;
> > -};
> > -
> > -static bool nvsw_sn2201_writeable_reg(struct device *dev, unsigned int
> reg)
> > -{
> > -	switch (reg) {
> > -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> > -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> > -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> > -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> > -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> > -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> > -	case NVSW_SN2201_THML_EVENT_OFFSET:
> > -	case NVSW_SN2201_THML_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> > -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> > -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> > -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> > -	case NVSW_SN2201_WD_ACT_OFFSET:
> > -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> > -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> > -		return true;
> > -	}
> > -	return false;
> > -}
> > -
> > -static bool nvsw_sn2201_readable_reg(struct device *dev, unsigned int
> reg)
> > -{
> > -	switch (reg) {
> > -	case NVSW_SN2201_HW_VER_ID_OFFSET:
> > -	case NVSW_SN2201_BOARD_ID_OFFSET:
> > -	case NVSW_SN2201_CPLD_VER_OFFSET:
> > -	case NVSW_SN2201_CPLD_MVER_OFFSET:
> > -	case NVSW_SN2201_CPLD_ID_OFFSET:
> > -	case NVSW_SN2201_CPLD_PN_OFFSET:
> > -	case NVSW_SN2201_CPLD_PN1_OFFSET:
> > -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> > -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
> > -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
> > -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> > -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_STATUS_OFFSET:
> > -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> > -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
> > -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
> > -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> > -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
> > -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> > -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> > -	case NVSW_SN2201_THML_STATUS_OFFSET:
> > -	case NVSW_SN2201_THML_EVENT_OFFSET:
> > -	case NVSW_SN2201_THML_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> > -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> > -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> > -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> > -	case NVSW_SN2201_WD_ACT_OFFSET:
> > -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> > -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> > -		return true;
> > -	}
> > -	return false;
> > -}
> > -
> > -static bool nvsw_sn2201_volatile_reg(struct device *dev, unsigned int reg)
> > -{
> > -	switch (reg) {
> > -	case NVSW_SN2201_HW_VER_ID_OFFSET:
> > -	case NVSW_SN2201_BOARD_ID_OFFSET:
> > -	case NVSW_SN2201_CPLD_VER_OFFSET:
> > -	case NVSW_SN2201_CPLD_MVER_OFFSET:
> > -	case NVSW_SN2201_CPLD_ID_OFFSET:
> > -	case NVSW_SN2201_CPLD_PN_OFFSET:
> > -	case NVSW_SN2201_CPLD_PN1_OFFSET:
> > -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> > -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
> > -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
> > -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> > -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_STATUS_OFFSET:
> > -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> > -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> > -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
> > -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
> > -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
> > -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> > -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
> > -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> > -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> > -	case NVSW_SN2201_THML_STATUS_OFFSET:
> > -	case NVSW_SN2201_THML_EVENT_OFFSET:
> > -	case NVSW_SN2201_THML_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> > -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> > -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> > -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> > -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> > -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> > -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> > -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> > -		return true;
> > -	}
> > -	return false;
> > -}
> > -
> > -static const struct reg_default nvsw_sn2201_regmap_default[] = {
> > -	{ NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET, 0x00 },
> > -	{ NVSW_SN2201_WD_ACT_OFFSET, 0x00 },
> > -};
> > -
> > -/* Configuration for the register map of a device with 1 bytes address
> space. */
> > -static const struct regmap_config nvsw_sn2201_regmap_conf = {
> > -	.reg_bits = 8,
> > -	.val_bits = 8,
> > -	.max_register = NVSW_SN2201_REG_MAX,
> > -	.cache_type = REGCACHE_FLAT,
> > -	.writeable_reg = nvsw_sn2201_writeable_reg,
> > -	.readable_reg = nvsw_sn2201_readable_reg,
> > -	.volatile_reg = nvsw_sn2201_volatile_reg,
> > -	.reg_defaults = nvsw_sn2201_regmap_default,
> > -	.num_reg_defaults = ARRAY_SIZE(nvsw_sn2201_regmap_default),
> > -};
> > -
> > -/* Regions for LPC I2C controller and LPC base register space. */
> > -static const struct resource nvsw_sn2201_lpc_io_resources[] = {
> > -	[0] =
> DEFINE_RES_NAMED(NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR,
> > -			       NVSW_SN2201_CPLD_LPC_IO_RANGE,
> > -			       "mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
> > -};
> > -
> > -static struct resource nvsw_sn2201_cpld_res[] = {
> > -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_CPLD_SYSIRQ,
> "mlxreg-hotplug"),
> > -};
> > -
> > -static struct resource nvsw_sn2201_lpc_res[] = {
> > -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_LPC_SYSIRQ, "i2c-
> mlxcpld"),
> > -};
> > -
> > -/* SN2201 I2C platform data. */
> > -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_i2c_data = {
> > -	.irq = NVSW_SN2201_CPLD_SYSIRQ,
> > -};
> > -
> > -/* SN2201 CPLD device. */
> > -static struct i2c_board_info nvsw_sn2201_cpld_devices[] = {
> > -	{
> > -		I2C_BOARD_INFO("nvsw-sn2201", 0x41),
> > -	},
> > -};
> > -
> > -/* SN2201 CPLD board info. */
> > -static struct mlxreg_hotplug_device nvsw_sn2201_cpld_brdinfo[] = {
> > -	{
> > -		.brdinfo = &nvsw_sn2201_cpld_devices[0],
> > -		.nr = NVSW_SN2201_CPLD_NR,
> > -	},
> > -};
> > -
> > -/* SN2201 main mux device. */
> > -static struct i2c_board_info nvsw_sn2201_main_mux_devices[] = {
> > -	{
> > -		I2C_BOARD_INFO("pca9548", 0x70),
> > -	},
> > -};
> > -
> > -/* SN2201 main mux board info. */
> > -static struct mlxreg_hotplug_device nvsw_sn2201_main_mux_brdinfo[] = {
> > -	{
> > -		.brdinfo = &nvsw_sn2201_main_mux_devices[0],
> > -		.nr = NVSW_SN2201_MAIN_MUX_NR,
> > -	},
> > -};
> > -
> > -/* SN2201 power devices. */
> > -static struct i2c_board_info nvsw_sn2201_pwr_devices[] = {
> > -	{
> > -		I2C_BOARD_INFO("pmbus", 0x58),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("pmbus", 0x58),
> > -	},
> > -};
> > -
> > -/* SN2201 fan devices. */
> > -static struct i2c_board_info nvsw_sn2201_fan_devices[] = {
> > -	{
> > -		I2C_BOARD_INFO("24c02", 0x50),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("24c02", 0x51),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("24c02", 0x52),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("24c02", 0x53),
> > -	},
> > -};
> > -
> > -/* SN2201 hotplug default data. */
> > -static struct mlxreg_core_data nvsw_sn2201_psu_items_data[] = {
> > -	{
> > -		.label = "psu1",
> > -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> > -		.mask = BIT(0),
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -	{
> > -		.label = "psu2",
> > -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> > -		.mask = BIT(1),
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -};
> > -
> > -static struct mlxreg_core_data nvsw_sn2201_pwr_items_data[] = {
> > -	{
> > -		.label = "pwr1",
> > -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> > -		.mask = BIT(0),
> > -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[0],
> > -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH1_NR,
> > -	},
> > -	{
> > -		.label = "pwr2",
> > -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> > -		.mask = BIT(1),
> > -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[1],
> > -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH2_NR,
> > -	},
> > -};
> > -
> > -static struct mlxreg_core_data nvsw_sn2201_fan_items_data[] = {
> > -	{
> > -		.label = "fan1",
> > -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> > -		.mask = BIT(0),
> > -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[0],
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -	{
> > -		.label = "fan2",
> > -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> > -		.mask = BIT(1),
> > -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[1],
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -	{
> > -		.label = "fan3",
> > -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> > -		.mask = BIT(2),
> > -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[2],
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -	{
> > -		.label = "fan4",
> > -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> > -		.mask = BIT(3),
> > -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[3],
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -};
> > -
> > -static struct mlxreg_core_data nvsw_sn2201_sys_items_data[] = {
> > -	{
> > -		.label = "nic_smb_alert",
> > -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> > -		.mask = BIT(1),
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -	{
> > -		.label = "cpu_sd",
> > -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> > -		.mask = BIT(2),
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -	{
> > -		.label = "mac_health",
> > -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> > -		.mask = BIT(3),
> > -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> > -	},
> > -};
> > -
> > -static struct mlxreg_core_item nvsw_sn2201_items[] = {
> > -	{
> > -		.data = nvsw_sn2201_psu_items_data,
> > -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF,
> > -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> > -		.mask = NVSW_SN2201_CPLD_PSU_MASK,
> > -		.count = ARRAY_SIZE(nvsw_sn2201_psu_items_data),
> > -		.inversed = 1,
> > -		.health = false,
> > -	},
> > -	{
> > -		.data = nvsw_sn2201_pwr_items_data,
> > -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF,
> > -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> > -		.mask = NVSW_SN2201_CPLD_PWR_MASK,
> > -		.count = ARRAY_SIZE(nvsw_sn2201_pwr_items_data),
> > -		.inversed = 0,
> > -		.health = false,
> > -	},
> > -	{
> > -		.data = nvsw_sn2201_fan_items_data,
> > -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF,
> > -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> > -		.mask = NVSW_SN2201_CPLD_FAN_MASK,
> > -		.count = ARRAY_SIZE(nvsw_sn2201_fan_items_data),
> > -		.inversed = 1,
> > -		.health = false,
> > -	},
> > -	{
> > -		.data = nvsw_sn2201_sys_items_data,
> > -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF,
> > -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> > -		.mask = NVSW_SN2201_CPLD_ASIC_MASK,
> > -		.count = ARRAY_SIZE(nvsw_sn2201_sys_items_data),
> > -		.inversed = 1,
> > -		.health = false,
> > -	},
> > -};
> > -
> > -static
> > -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_hotplug = {
> > -	.items = nvsw_sn2201_items,
> > -	.counter = ARRAY_SIZE(nvsw_sn2201_items),
> > -	.cell = NVSW_SN2201_SYS_INT_STATUS_OFFSET,
> > -	.mask = NVSW_SN2201_CPLD_AGGR_MASK_DEF,
> > -};
> > -
> > -/* SN2201 static devices. */
> > -static struct i2c_board_info nvsw_sn2201_static_devices[] = {
> > -	{
> > -		I2C_BOARD_INFO("24c02", 0x57),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("lm75", 0x4b),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("24c64", 0x56),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("ads1015", 0x49),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("pca9546", 0x71),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("emc2305", 0x4d),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("lm75", 0x49),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("pca9555", 0x27),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("powr1014", 0x37),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("lm75", 0x4f),
> > -	},
> > -	{
> > -		I2C_BOARD_INFO("pmbus", 0x40),
> > -	},
> > -};
> > -
> > -/* SN2201 default static board info. */
> > -static struct mlxreg_hotplug_device nvsw_sn2201_static_brdinfo[] = {
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[0],
> > -		.nr = NVSW_SN2201_MAIN_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[1],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[2],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[3],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[4],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH3_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[5],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[6],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[7],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[8],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[9],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
> > -	},
> > -	{
> > -		.brdinfo = &nvsw_sn2201_static_devices[10],
> > -		.nr = NVSW_SN2201_MAIN_MUX_CH7_NR,
> > -	},
> > -};
> > -
> > -/* LED default data. */
> > -static struct mlxreg_core_data nvsw_sn2201_led_data[] = {
> > -	{
> > -		.label = "status:green",
> > -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "status:orange",
> > -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "psu:green",
> > -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "psu:orange",
> > -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "uid:blue",
> > -		.reg = NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "fan1:green",
> > -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "fan1:orange",
> > -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "fan2:green",
> > -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> > -		.mask = GENMASK(3, 0),
> > -	},
> > -	{
> > -		.label = "fan2:orange",
> > -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> > -		.mask = GENMASK(3, 0),
> > -	},
> > -	{
> > -		.label = "fan3:green",
> > -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "fan3:orange",
> > -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 4),
> > -	},
> > -	{
> > -		.label = "fan4:green",
> > -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> > -		.mask = GENMASK(3, 0),
> > -	},
> > -	{
> > -		.label = "fan4:orange",
> > -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> > -		.mask = GENMASK(3, 0),
> > -	},
> > -};
> > -
> > -static struct mlxreg_core_platform_data nvsw_sn2201_led = {
> > -	.data = nvsw_sn2201_led_data,
> > -	.counter = ARRAY_SIZE(nvsw_sn2201_led_data),
> > -};
> > -
> > -/* Default register access data. */
> > -static struct mlxreg_core_data nvsw_sn2201_io_data[] = {
> > -	{
> > -		.label = "cpld1_version",
> > -		.reg = NVSW_SN2201_CPLD_VER_OFFSET,
> > -		.bit = GENMASK(7, 0),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "cpld1_version_min",
> > -		.reg = NVSW_SN2201_CPLD_MVER_OFFSET,
> > -		.bit = GENMASK(7, 0),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "cpld1_pn",
> > -		.reg = NVSW_SN2201_CPLD_PN_OFFSET,
> > -		.bit = GENMASK(15, 0),
> > -		.mode = 0444,
> > -		.regnum = 2,
> > -	},
> > -	{
> > -		.label = "psu1_on",
> > -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(0),
> > -		.mode = 0644,
> > -	},
> > -	{
> > -		.label = "psu2_on",
> > -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(1),
> > -		.mode = 0644,
> > -	},
> > -	{
> > -		.label = "pwr_cycle",
> > -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(2),
> > -		.mode = 0644,
> > -	},
> > -	{
> > -		.label = "asic_health",
> > -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
> > -		.mask = GENMASK(4, 3),
> > -		.bit = 4,
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "qsfp_pwr_good",
> > -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(0),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "phy_reset",
> > -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(3),
> > -		.mode = 0644,
> > -	},
> > -	{
> > -		.label = "mac_reset",
> > -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(2),
> > -		.mode = 0644,
> > -	},
> > -	{
> > -		.label = "pwr_down",
> > -		.reg = NVSW_SN2201_RST_SW_CTRL_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(0),
> > -		.mode = 0644,
> > -	},
> > -	{
> > -		.label = "reset_long_pb",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(0),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_short_pb",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(1),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_aux_pwr_or_fu",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(2),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_swb_dc_dc_pwr_fail",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(3),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_sw_reset",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(4),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_fw_reset",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(5),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_swb_wd",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(6),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_asic_thermal",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(7),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_system",
> > -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(1),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_sw_pwr_off",
> > -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(2),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_cpu_pwr_fail_thermal",
> > -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(4),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_reload_bios",
> > -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(5),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "reset_ac_pwr_fail",
> > -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(6),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "psu1",
> > -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(0),
> > -		.mode = 0444,
> > -	},
> > -	{
> > -		.label = "psu2",
> > -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(1),
> > -		.mode = 0444,
> > -	},
> > -};
> > -
> > -static struct mlxreg_core_platform_data nvsw_sn2201_regs_io = {
> > -	.data = nvsw_sn2201_io_data,
> > -	.counter = ARRAY_SIZE(nvsw_sn2201_io_data),
> > -};
> > -
> > -/* Default watchdog data. */
> > -static struct mlxreg_core_data nvsw_sn2201_wd_data[] = {
> > -	{
> > -		.label = "action",
> > -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
> > -		.mask = GENMASK(7, 1),
> > -		.bit = 0,
> > -	},
> > -	{
> > -		.label = "timeout",
> > -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
> > -		.mask = 0,
> > -		.health_cntr = NVSW_SN2201_WD_DFLT_TIMEOUT,
> > -	},
> > -	{
> > -		.label = "timeleft",
> > -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
> > -		.mask = 0,
> > -	},
> > -	{
> > -		.label = "ping",
> > -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
> > -		.mask = GENMASK(7, 1),
> > -		.bit = 0,
> > -	},
> > -	{
> > -		.label = "reset",
> > -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> > -		.mask = GENMASK(7, 0) & ~BIT(6),
> > -		.bit = 6,
> > -	},
> > -};
> > -
> > -static struct mlxreg_core_platform_data nvsw_sn2201_wd = {
> > -	.data = nvsw_sn2201_wd_data,
> > -	.counter = ARRAY_SIZE(nvsw_sn2201_wd_data),
> > -	.version = MLX_WDT_TYPE3,
> > -	.identity = "mlx-wdt-main",
> > -};
> > -
> > -static int
> > -nvsw_sn2201_create_static_devices(struct nvsw_sn2201 *nvsw_sn2201,
> > -				  struct mlxreg_hotplug_device *devs,
> > -				  int size)
> > -{
> > -	struct mlxreg_hotplug_device *dev = devs;
> > -	int i;
> > -
> > -	/* Create I2C static devices. */
> > -	for (i = 0; i < size; i++, dev++) {
> > -		dev->client = i2c_new_client_device(dev->adapter, dev-
> >brdinfo);
> > -		if (IS_ERR(dev->client)) {
> > -			dev_err(nvsw_sn2201->dev, "Failed to create client
> %s at bus %d at addr 0x%02x\n",
> > -				dev->brdinfo->type,
> > -				dev->nr, dev->brdinfo->addr);
> > -
> > -			dev->adapter = NULL;
> > -			goto fail_create_static_devices;
> > -		}
> > -	}
> > -
> > -	return 0;
> > -
> > -fail_create_static_devices:
> > -	while (--i >= 0) {
> > -		dev = devs + i;
> > -		i2c_unregister_device(dev->client);
> > -		dev->client = NULL;
> > -		dev->adapter = NULL;
> > -	}
> > -	return IS_ERR(dev->client);
> > -}
> > -
> > -static void nvsw_sn2201_destroy_static_devices(struct nvsw_sn2201
> *nvsw_sn2201,
> > -					       struct mlxreg_hotplug_device
> *devs, int size)
> > -{
> > -	struct mlxreg_hotplug_device *dev = devs;
> > -	int i;
> > -
> > -	/* Destroy static I2C device for SN2201 static devices. */
> > -	for (i = 0; i < size; i++, dev++) {
> > -		if (dev->client) {
> > -			i2c_unregister_device(dev->client);
> > -			dev->client = NULL;
> > -			i2c_put_adapter(dev->adapter);
> > -			dev->adapter = NULL;
> > -		}
> > -	}
> > -}
> > -
> > -static int nvsw_sn2201_config_post_init(struct nvsw_sn2201
> *nvsw_sn2201)
> > -{
> > -	struct mlxreg_hotplug_device *sn2201_dev;
> > -	struct i2c_adapter *adap;
> > -	struct device *dev;
> > -	int i, j, err;
> > -
> > -	dev = nvsw_sn2201->dev;
> > -	adap = i2c_get_adapter(nvsw_sn2201->main_mux_deferred_nr);
> > -	if (!adap) {
> > -		dev_err(dev, "Failed to get adapter for bus %d\n",
> > -			nvsw_sn2201->main_mux_deferred_nr);
> > -		return -ENODEV;
> > -	}
> > -	i2c_put_adapter(adap);
> > -
> > -	/* Update board info. */
> > -	sn2201_dev = nvsw_sn2201->sn2201_devs;
> > -	for (i = 0, j = 0; i < nvsw_sn2201->sn2201_devs_num; i++,
> sn2201_dev++) {
> > -		sn2201_dev->adapter = i2c_get_adapter(sn2201_dev->nr);
> > -		if (!sn2201_dev->adapter)
> > -			return -ENODEV;
> > -		i2c_put_adapter(sn2201_dev->adapter);
> > -	}
> > -
> > -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201,
> nvsw_sn2201->sn2201_devs,
> > -						nvsw_sn2201-
> >sn2201_devs_num);
> > -	if (err)
> > -		dev_err(dev, "Failed to create static devices\n");
> > -
> > -	return err;
> > -}
> > -
> > -static int nvsw_sn2201_config_init(struct nvsw_sn2201 *nvsw_sn2201,
> void *regmap)
> > -{
> > -	struct device *dev = nvsw_sn2201->dev;
> > -	int err;
> > -
> > -	nvsw_sn2201->io_data = &nvsw_sn2201_regs_io;
> > -	nvsw_sn2201->led_data = &nvsw_sn2201_led;
> > -	nvsw_sn2201->wd_data = &nvsw_sn2201_wd;
> > -	nvsw_sn2201->hotplug_data = &nvsw_sn2201_hotplug;
> > -
> > -	/* Register IO access driver. */
> > -	if (nvsw_sn2201->io_data) {
> > -		nvsw_sn2201->io_data->regmap = regmap;
> > -		nvsw_sn2201->io_regs =
> > -		platform_device_register_resndata(dev, "mlxreg-io",
> PLATFORM_DEVID_NONE, NULL, 0,
> > -						  nvsw_sn2201->io_data,
> > -						  sizeof(*nvsw_sn2201-
> >io_data));
> > -		if (IS_ERR(nvsw_sn2201->io_regs)) {
> > -			err = PTR_ERR(nvsw_sn2201->io_regs);
> > -			goto fail_register_io;
> > -		}
> > -	}
> > -
> > -	/* Register LED driver. */
> > -	if (nvsw_sn2201->led_data) {
> > -		nvsw_sn2201->led_data->regmap = regmap;
> > -		nvsw_sn2201->led =
> > -		platform_device_register_resndata(dev, "leds-mlxreg",
> PLATFORM_DEVID_NONE, NULL, 0,
> > -						  nvsw_sn2201->led_data,
> > -						  sizeof(*nvsw_sn2201-
> >led_data));
> > -		if (IS_ERR(nvsw_sn2201->led)) {
> > -			err = PTR_ERR(nvsw_sn2201->led);
> > -			goto fail_register_led;
> > -		}
> > -	}
> > -
> > -	/* Register WD driver. */
> > -	if (nvsw_sn2201->wd_data) {
> > -		nvsw_sn2201->wd_data->regmap = regmap;
> > -		nvsw_sn2201->wd =
> > -		platform_device_register_resndata(dev, "mlx-wdt",
> PLATFORM_DEVID_NONE, NULL, 0,
> > -						  nvsw_sn2201->wd_data,
> > -						  sizeof(*nvsw_sn2201-
> >wd_data));
> > -		if (IS_ERR(nvsw_sn2201->wd)) {
> > -			err = PTR_ERR(nvsw_sn2201->wd);
> > -			goto fail_register_wd;
> > -		}
> > -	}
> > -
> > -	/* Register hotplug driver. */
> > -	if (nvsw_sn2201->hotplug_data) {
> > -		nvsw_sn2201->hotplug_data->regmap = regmap;
> > -		nvsw_sn2201->pdev_hotplug =
> > -		platform_device_register_resndata(dev, "mlxreg-hotplug",
> PLATFORM_DEVID_NONE,
> > -						  nvsw_sn2201_cpld_res,
> > -
> ARRAY_SIZE(nvsw_sn2201_cpld_res),
> > -						  nvsw_sn2201-
> >hotplug_data,
> > -						  sizeof(*nvsw_sn2201-
> >hotplug_data));
> > -		if (IS_ERR(nvsw_sn2201->pdev_hotplug)) {
> > -			err = PTR_ERR(nvsw_sn2201->pdev_hotplug);
> > -			goto fail_register_hotplug;
> > -		}
> > -	}
> > -
> > -	return nvsw_sn2201_config_post_init(nvsw_sn2201);
> > -
> > -fail_register_hotplug:
> > -	if (nvsw_sn2201->wd)
> > -		platform_device_unregister(nvsw_sn2201->wd);
> > -fail_register_wd:
> > -	if (nvsw_sn2201->led)
> > -		platform_device_unregister(nvsw_sn2201->led);
> > -fail_register_led:
> > -	if (nvsw_sn2201->io_regs)
> > -		platform_device_unregister(nvsw_sn2201->io_regs);
> > -fail_register_io:
> > -
> > -	return err;
> > -}
> > -
> > -static void nvsw_sn2201_config_exit(struct nvsw_sn2201 *nvsw_sn2201)
> > -{
> > -	/* Unregister hotplug driver. */
> > -	if (nvsw_sn2201->pdev_hotplug)
> > -		platform_device_unregister(nvsw_sn2201->pdev_hotplug);
> > -	/* Unregister WD driver. */
> > -	if (nvsw_sn2201->wd)
> > -		platform_device_unregister(nvsw_sn2201->wd);
> > -	/* Unregister LED driver. */
> > -	if (nvsw_sn2201->led)
> > -		platform_device_unregister(nvsw_sn2201->led);
> > -	/* Unregister IO access driver. */
> > -	if (nvsw_sn2201->io_regs)
> > -		platform_device_unregister(nvsw_sn2201->io_regs);
> > -}
> > -
> > -/*
> > - * Initialization is divided into two parts:
> > - * - I2C main bus init.
> > - * - Mux creation and attaching devices to the mux,
> > - *   which assumes that the main bus is already created.
> > - * This separation is required for synchronization between these two
> parts.
> > - * Completion notify callback is used to make this flow synchronized.
> > - */
> > -static int nvsw_sn2201_i2c_completion_notify(void *handle, int id)
> > -{
> > -	struct nvsw_sn2201 *nvsw_sn2201 = handle;
> > -	void *regmap;
> > -	int i, err;
> > -
> > -	/* Create main mux. */
> > -	nvsw_sn2201->main_mux_devs->adapter =
> i2c_get_adapter(nvsw_sn2201->main_mux_devs->nr);
> > -	if (!nvsw_sn2201->main_mux_devs->adapter) {
> > -		err = -ENODEV;
> > -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus
> %d\n",
> > -			nvsw_sn2201->cpld_devs->nr);
> > -		goto i2c_get_adapter_main_fail;
> > -	}
> > -
> > -	nvsw_sn2201->main_mux_devs_num =
> ARRAY_SIZE(nvsw_sn2201_main_mux_brdinfo);
> > -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201,
> nvsw_sn2201->main_mux_devs,
> > -						nvsw_sn2201-
> >main_mux_devs_num);
> > -	if (err) {
> > -		dev_err(nvsw_sn2201->dev, "Failed to create main mux
> devices\n");
> > -		goto nvsw_sn2201_create_static_devices_fail;
> > -	}
> > -
> > -	nvsw_sn2201->cpld_devs->adapter = i2c_get_adapter(nvsw_sn2201-
> >cpld_devs->nr);
> > -	if (!nvsw_sn2201->cpld_devs->adapter) {
> > -		err = -ENODEV;
> > -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus
> %d\n",
> > -			nvsw_sn2201->cpld_devs->nr);
> > -		goto i2c_get_adapter_fail;
> > -	}
> > -
> > -	/* Create CPLD device. */
> > -	nvsw_sn2201->cpld_devs->client =
> i2c_new_dummy_device(nvsw_sn2201->cpld_devs->adapter,
> > -
> NVSW_SN2201_CPLD_I2CADDR);
> > -	if (IS_ERR(nvsw_sn2201->cpld_devs->client)) {
> > -		err = PTR_ERR(nvsw_sn2201->cpld_devs->client);
> > -		dev_err(nvsw_sn2201->dev, "Failed to create %s cpld device
> at bus %d at addr 0x%02x\n",
> > -			nvsw_sn2201->cpld_devs->brdinfo->type,
> nvsw_sn2201->cpld_devs->nr,
> > -			nvsw_sn2201->cpld_devs->brdinfo->addr);
> > -		goto i2c_new_dummy_fail;
> > -	}
> > -
> > -	regmap = devm_regmap_init_i2c(nvsw_sn2201->cpld_devs->client,
> &nvsw_sn2201_regmap_conf);
> > -	if (IS_ERR(regmap)) {
> > -		err = PTR_ERR(regmap);
> > -		dev_err(nvsw_sn2201->dev, "Failed to initialise managed
> register map\n");
> > -		goto devm_regmap_init_i2c_fail;
> > -	}
> > -
> > -	/* Set default registers. */
> > -	for (i = 0; i < nvsw_sn2201_regmap_conf.num_reg_defaults; i++) {
> > -		err = regmap_write(regmap,
> nvsw_sn2201_regmap_default[i].reg,
> > -				   nvsw_sn2201_regmap_default[i].def);
> > -		if (err) {
> > -			dev_err(nvsw_sn2201->dev, "Failed to set register at
> offset 0x%02x to default value: 0x%02x\n",
> > -				nvsw_sn2201_regmap_default[i].reg,
> > -				nvsw_sn2201_regmap_default[i].def);
> > -			goto regmap_write_fail;
> > -		}
> > -	}
> > -
> > -	/* Sync registers with hardware. */
> > -	regcache_mark_dirty(regmap);
> > -	err = regcache_sync(regmap);
> > -	if (err) {
> > -		dev_err(nvsw_sn2201->dev, "Failed to Sync registers with
> hardware\n");
> > -		goto regcache_sync_fail;
> > -	}
> > -
> > -	/* Configure SN2201 board. */
> > -	err = nvsw_sn2201_config_init(nvsw_sn2201, regmap);
> > -	if (err) {
> > -		dev_err(nvsw_sn2201->dev, "Failed to configure board\n");
> > -		goto nvsw_sn2201_config_init_fail;
> > -	}
> > -
> > -	return 0;
> > -
> > -nvsw_sn2201_config_init_fail:
> > -	nvsw_sn2201_config_exit(nvsw_sn2201);
> > -regcache_sync_fail:
> > -regmap_write_fail:
> > -devm_regmap_init_i2c_fail:
> > -i2c_new_dummy_fail:
> > -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
> > -	nvsw_sn2201->cpld_devs->adapter = NULL;
> > -i2c_get_adapter_fail:
> > -	/* Destroy SN2201 static I2C devices. */
> > -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201-
> >sn2201_devs,
> > -					   nvsw_sn2201->sn2201_devs_num);
> > -	/* Destroy main mux device. */
> > -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201-
> >main_mux_devs,
> > -					   nvsw_sn2201-
> >main_mux_devs_num);
> > -nvsw_sn2201_create_static_devices_fail:
> > -	i2c_put_adapter(nvsw_sn2201->main_mux_devs->adapter);
> > -i2c_get_adapter_main_fail:
> > -	return err;
> > -}
> > -
> > -static int nvsw_sn2201_config_pre_init(struct nvsw_sn2201
> *nvsw_sn2201)
> > -{
> > -	nvsw_sn2201->i2c_data = &nvsw_sn2201_i2c_data;
> > -
> > -	/* Register I2C controller. */
> > -	nvsw_sn2201->i2c_data->handle = nvsw_sn2201;
> > -	nvsw_sn2201->i2c_data->completion_notify =
> nvsw_sn2201_i2c_completion_notify;
> > -	nvsw_sn2201->pdev_i2c =
> platform_device_register_resndata(nvsw_sn2201->dev, "i2c_mlxcpld",
> > -
> NVSW_SN2201_MAIN_MUX_NR,
> > -
> nvsw_sn2201_lpc_res,
> > -
> ARRAY_SIZE(nvsw_sn2201_lpc_res),
> > -
> nvsw_sn2201->i2c_data,
> > -
> sizeof(*nvsw_sn2201->i2c_data));
> > -	if (IS_ERR(nvsw_sn2201->pdev_i2c))
> > -		return PTR_ERR(nvsw_sn2201->pdev_i2c);
> > -
> > -	return 0;
> > -}
> > -
> > -static int nvsw_sn2201_probe(struct platform_device *pdev)
> > -{
> > -	struct nvsw_sn2201 *nvsw_sn2201;
> > -
> > -	nvsw_sn2201 = devm_kzalloc(&pdev->dev, sizeof(*nvsw_sn2201),
> GFP_KERNEL);
> > -	if (!nvsw_sn2201)
> > -		return -ENOMEM;
> > -
> > -	nvsw_sn2201->dev = &pdev->dev;
> > -	platform_set_drvdata(pdev, nvsw_sn2201);
> > -	platform_device_add_resources(pdev,
> nvsw_sn2201_lpc_io_resources,
> > -
> ARRAY_SIZE(nvsw_sn2201_lpc_io_resources));
> > -
> > -	nvsw_sn2201->main_mux_deferred_nr =
> NVSW_SN2201_MAIN_MUX_DEFER_NR;
> > -	nvsw_sn2201->main_mux_devs = nvsw_sn2201_main_mux_brdinfo;
> > -	nvsw_sn2201->cpld_devs = nvsw_sn2201_cpld_brdinfo;
> > -	nvsw_sn2201->sn2201_devs = nvsw_sn2201_static_brdinfo;
> > -	nvsw_sn2201->sn2201_devs_num =
> ARRAY_SIZE(nvsw_sn2201_static_brdinfo);
> > -
> > -	return nvsw_sn2201_config_pre_init(nvsw_sn2201);
> > -}
> > -
> > -static int nvsw_sn2201_remove(struct platform_device *pdev)
> > -{
> > -	struct nvsw_sn2201 *nvsw_sn2201 = platform_get_drvdata(pdev);
> > -
> > -	/* Unregister underlying drivers. */
> > -	nvsw_sn2201_config_exit(nvsw_sn2201);
> > -
> > -	/* Destroy SN2201 static I2C devices. */
> > -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
> > -					   nvsw_sn2201->sn2201_devs,
> > -					   nvsw_sn2201->sn2201_devs_num);
> > -
> > -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
> > -	nvsw_sn2201->cpld_devs->adapter = NULL;
> > -	/* Destroy main mux device. */
> > -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
> > -					   nvsw_sn2201->main_mux_devs,
> > -					   nvsw_sn2201-
> >main_mux_devs_num);
> > -
> > -	/* Unregister I2C controller. */
> > -	if (nvsw_sn2201->pdev_i2c)
> > -		platform_device_unregister(nvsw_sn2201->pdev_i2c);
> > -
> > -	return 0;
> > -}
> > -
> > -static const struct acpi_device_id nvsw_sn2201_acpi_ids[] = {
> > -	{"NVSN2201", 0},
> > -	{}
> > -};
> > -
> > -MODULE_DEVICE_TABLE(acpi, nvsw_sn2201_acpi_ids);
> > -
> > -static struct platform_driver nvsw_sn2201_driver = {
> > -	.probe = nvsw_sn2201_probe,
> > -	.remove = nvsw_sn2201_remove,
> > -	.driver = {
> > -		.name = "nvsw-sn2201",
> > -	.acpi_match_table = nvsw_sn2201_acpi_ids,
> > -	},
> > -};
> > -
> > -module_platform_driver(nvsw_sn2201_driver);
> > -
> > -MODULE_AUTHOR("Nvidia");
> > -MODULE_DESCRIPTION("Nvidia sn2201 platform driver");
> > -MODULE_LICENSE("Dual BSD/GPL");
> > -MODULE_ALIAS("platform:nvsw-sn2201");
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/asic_health
> > +Date:		June 2018
> > +KernelVersion:	4.19
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	This file shows ASIC health status. The possible values are:
> > +		0 - health failed, 2 - health OK, 3 - ASIC in booting state.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld1_version
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld2_version
> > +Date:		June 2018
> > +KernelVersion:	4.19
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show with which CPLD versions have been burned
> > +		on carrier and switch boards.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/fan_dir
> > +Date:		December 2018
> > +KernelVersion:	5.0
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	This file shows the system fans direction:
> > +		forward direction - relevant bit is set 0;
> > +		reversed direction - relevant bit is set 1.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld3_version
> > +Date:		November 2018
> > +KernelVersion:	5.0
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show with which CPLD versions have been burned
> > +		on LED or Gearbox board.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/jtag_enable
> > +Date:		November 2018
> > +KernelVersion:	5.0
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files enable and disable the access to the JTAG domain.
> > +		By default access to the JTAG domain is disabled.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/select_iio
> > +Date:		June 2018
> > +KernelVersion:	4.19
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	This file allows iio devices selection.
> > +
> > +		Attribute select_iio can be written with 0 or with 1. It
> > +		selects which one of iio devices can be accessed.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/psu1_on
> > +		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/psu2_on
> > +		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/pwr_cycle
> > +		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/pwr_down
> > +Date:		June 2018
> > +KernelVersion:	4.19
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files allow asserting system power cycling, switching
> > +		power supply units on and off and system's main power
> domain
> > +		shutdown.
> > +		Expected behavior:
> > +		When pwr_cycle is written 1: auxiliary power domain will go
> > +		down and after short period (about 1 second) up.
> > +		When  psu1_on or psu2_on is written 1, related unit will be
> > +		disconnected from the power source, when written 0 -
> connected.
> > +		If both are written 1 - power supplies main power domain
> will
> > +		go down.
> > +		When pwr_down is written 1, system's main power domain
> will go
> > +		down.
> > +
> > +		The files are write only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_aux_pwr_or_ref
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_asic_thermal
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_hotswap_or_halt
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_hotswap_or_wd
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_fw_reset
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_long_pb
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_main_pwr_fail
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_short_pb
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_sw_reset
> > +Date:		June 2018
> > +KernelVersion:	4.19
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show the system reset cause, as following: power
> > +		auxiliary outage or power refresh, ASIC thermal shutdown,
> halt,
> > +		hotswap, watchdog, firmware reset, long press power
> button,
> > +		short press power button, software reset. Value 1 in file
> means
> > +		this is reset cause, 0 - otherwise. Only one of the above
> > +		causes could be 1 at the same time, representing only last
> > +		reset cause.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_comex_pwr_fail
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_from_comex
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_system
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_voltmon_upgrade_fail
> > +Date:		November 2018
> > +KernelVersion:	5.0
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show the system reset cause, as following: ComEx
> > +		power fail, reset from ComEx, system platform reset, reset
> > +		due to voltage monitor devices upgrade failure,
> > +		Value 1 in file means this is reset cause, 0 - otherwise.
> > +		Only one bit could be 1 at the same time, representing only
> > +		the last reset cause.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld4_version
> > +Date:		November 2018
> > +KernelVersion:	5.0
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show with which CPLD versions have been burned
> > +		on LED board.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_comex_thermal
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_comex_wd
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_from_asic
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_reload_bios
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_sff_wd
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_swb_wd
> > +Date:		June 2019
> > +KernelVersion:	5.3
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show the system reset cause, as following:
> > +		COMEX thermal shutdown; wathchdog power off or reset
> was derived
> > +		by one of the next components: COMEX, switch board or by
> Small Form
> > +		Factor mezzanine, reset requested from ASIC, reset caused
> by BIOS
> > +		reload. Value 1 in file means this is reset cause, 0 - otherwise.
> > +		Only one of the above causes could be 1 at the same time,
> representing
> > +		only last reset cause.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/config1
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/config2
> > +Date:		January 2020
> > +KernelVersion:	5.6
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show system static topology identification
> > +		like system's static I2C topology, number and type of FPGA
> > +		devices within the system and so on.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_ac_pwr_fail
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_platform
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_soc
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/reset_sw_pwr_off
> > +Date:		January 2020
> > +KernelVersion:	5.6
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show the system reset causes, as following: reset
> > +		due to AC power failure, reset invoked from software by
> > +		assertion reset signal through CPLD. reset caused by signal
> > +		asserted by SOC through ACPI register, reset invoked from
> > +		software by assertion power off signal through CPLD.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/pcie_asic_reset_dis
> > +Date:		January 2020
> > +KernelVersion:	5.6
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	This file allows to retain ASIC up during PCIe root complex
> > +		reset, when attribute is set 1.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/vpd_wp
> > +Date:		January 2020
> > +KernelVersion:	5.6
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	This file allows to overwrite system VPD hardware write
> > +		protection when attribute is set 1.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/voltreg_update_status
> > +Date:		January 2020
> > +KernelVersion:	5.6
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	This file exposes the configuration update status of burnable
> > +		voltage regulator devices. The status values are as following:
> > +		0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
> > +
> > +		The file is read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/ufm_version
> > +Date:		January 2020
> > +KernelVersion:	5.6
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	This file exposes the firmware version of burnable voltage
> > +		regulator devices.
> > +
> > +		The file is read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld1_pn
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld2_pn
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld3_pn
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld4_pn
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld1_version_min
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld2_version_min
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld3_version_min
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/cpld4_version_min
> > +Date:		July 2020
> > +KernelVersion:	5.9
> > +Contact:	Vadim Pasternak <vadimpmellanox.com>
> > +Description:	These files show with which CPLD part numbers and minor
> > +		versions have been burned CPLD devices equipped on a
> > +		system.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/bios_active_image
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/bios_auth_fail
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/bios_upgrade_fail
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	The files represent BIOS statuses:
> > +
> > +		bios_active_image: location of current active BIOS image:
> > +		0: Top, 1: Bottom.
> > +		The reported value should correspond to value expected by
> OS
> > +		in case of BIOS safe mode is 0. This bit is related to Intel
> > +		top-swap feature of DualBios on the same flash.
> > +
> > +		bios_auth_fail: BIOS upgrade is failed because provided BIOS
> > +		image is not signed correctly.
> > +
> > +		bios_upgrade_fail: BIOS upgrade is failed by some other
> > +		reason not because authentication. For example due to
> > +		physical SPI flash problem.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc1_enable
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc2_enable
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc3_enable
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc4_enable
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc5_enable
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc6_enable
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc7_enable
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc8_enable
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files allow line cards enable state control.
> > +		Expected behavior:
> > +		When  lc{n}_enable is written 1, related line card is released
> > +		from the reset state, when 0 - is hold in reset state.
> > +
> > +		The files are read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc1_pwr
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc2_pwr
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc3_pwr
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc4_pwr
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc5_pwr
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc6_pwr
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc7_pwr
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc8_pwr
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files switching line cards power on and off.
> > +		Expected behavior:
> > +		When  lc{n}_pwr is written 1, related line card is powered
> > +		on, when written 0 - powered off.
> > +
> > +		The files are read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc1_rst_mask
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc2_rst_mask
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc3_rst_mask
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc4_rst_mask
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc5_rst_mask
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc6_rst_mask
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc7_rst_mask
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/lc8_rst_mask
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files clear line card reset bit enforced by ASIC, when it
> > +		sets it due to some abnormal ASIC behavior.
> > +		Expected behavior:
> > +		When lc{n}_rst_mask is written 1, related line card reset bit
> > +		is cleared, when written 0 - no effect.
> > +
> > +		The files are write only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/os_started
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	This file, when written 1, indicates to programmable devices
> > +		that OS is taking control over it.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/pm_mgmt_en
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	This file assigns power management control ownership.
> > +		When power management control is provided by hardware,
> hardware
> > +		will automatically power off one or more line previously
> > +		powered line cards in case system power budget is getting
> > +		insufficient. It could be in case when some of power units
> lost
> > +		power good state.
> > +		When pm_mgmt_en is written 1, power management control
> by
> > +		software is enabled, 0 - power management control by
> hardware.
> > +		Note that for any setting of pm_mgmt_en attribute hardware
> will
> > +		not allow to power on any new line card in case system
> power
> > +		budget is insufficient.
> > +		Same in case software will try to power on several line cards
> > +		at once - hardware will power line cards while system has
> > +		enough power budget.
> > +		Default is 0.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/psu3_on
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/psu4_on
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files switching power supply units on and off.
> > +		Expected behavior:
> > +		When  psu3_on or psu4_on is written 1, related unit will be
> > +		disconnected from the power source, when written 0 -
> connected.
> > +
> > +		The files are write only.
> > +
> > +What:		/sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/shutdown_unlock
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	This file allows to unlock ASIC after thermal shutdown event.
> > +		When system thermal shutdown is enforced by ASIC, ASIC is
> > +		getting locked and after system boot it will not be available.
> > +		Software can decide to unlock it by setting this attribute to
> > +		1 and then perform system power cycle by setting pwr_cycle
> > +		attribute to 1 (power cycle of main power domain).
> > +		Before setting shutdown_unlock to 1 it is recommended to
> > +		validate that system reboot cause is reset_asic_thermal or
> > +		reset_thermal_spc_or_pciesw.
> > +		In case shutdown_unlock is not set 1, the only way to release
> > +		ASIC from locking - is full system power cycle through the
> > +		external power distribution unit.
> > +		Default is 1.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_pn
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version_min
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files show with which CPLD major and minor versions
> > +		and part number has been burned CPLD device on line card.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_pn
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version_min
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files show with which FPGA major and minor versions
> > +		and part number has been burned FPGA device on line card.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/vpd_wp
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	This file allow to overwrite line card VPD hardware write
> > +		protection mode. When attribute is set 1 - write protection is
> > +		disabled, when 0 - enabled.
> > +		Default is 0.
> > +		If the system is in locked-down mode writing this file will not
> > +		be allowed.
> > +		The purpose if this file is to allow line card VPD burning
> > +		during production flow.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_aux_pwr_or_ref
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_dc_dc_pwr_fail
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_fpga_not_done
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_from_chassis
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_line_card
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-
> io.*/hwmon/hwmon*/reset_pwr_off_from_chassis
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files show the line reset cause, as following: power
> > +		auxiliary outage or power refresh, DC-to-DC power failure,
> FPGA reset
> > +		failed, line card reset failed, power off from chassis.
> > +		Value 1 in file means this is reset cause, 0 - otherwise. Only
> one of
> > +		the above causes could be 1 at the same time, representing
> only last
> > +		reset cause.
> > +
> > +		The files are read only.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld_upgrade_en
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_upgrade_en
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files allow CPLD and FPGA burning. Value 1 in file
> means burning
> > +		is enabled, 0 - otherwise.
> > +		If the system is in locked-down mode writing these files will
> > +		not be allowed.
> > +		The purpose of these files to allow line card CPLD and FPGA
> > +		upgrade through the JTAG daisy-chain.
> > +
> > +		The files are read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/qsfp_pwr_en
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/pwr_en
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files allow to power on/off all QSFP ports and whole
> line card.
> > +		The attributes are set 1 for power on, 0 - for power off.
> > +
> > +		The files are read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/agb_spi_burn_en
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_spi_burn_en
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files allow gearboxes and FPGA SPI flash burning.
> > +		The attributes are set 1 to enable burning, 0 - to disable.
> > +		If the system is in locked-down mode writing these files will
> > +		not be allowed.
> > +		The purpose of these files to allow line card Gearboxes and
> FPGA
> > +		burning during production flow.
> > +
> > +		The file is read/write.
> > +
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/max_power
> > +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/config
> > +Date:		October 2021
> > +KernelVersion:	5.16
> > +Contact:	Vadim Pasternak <[e-mail]>
> > +Description:	These files provide the maximum powered required for line
> card
> > +		feeding and line card configuration Id.
> > +
> > +		The files are read only.
> > +
> > +What:           /sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/phy_reset
> > +Date:           May 2022
> > +KernelVersion:  5.19
> > +Contact:        Vadim Pasternak <vadimpmellanox.com>
> > +Description:    This file allows to reset PHY 88E1548 when attribute is set 0
> > +                due to some abnormal PHY behavior.
> > +                Expected behavior:
> > +                When phy_reset is written 1, all PHY 88E1548 are released
> > +                from the reset state, when 0 - are hold in reset state.
> > +
> > +                The files are read/write.
> > +
> > +What:           /sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/mac_reset
> > +Date:           May 2022
> > +KernelVersion:  5.19
> > +Contact:        Vadim Pasternak <vadimpmellanox.com>
> > +Description:    This file allows to reset ASIC MT52132 when attribute is set
> 0
> > +                due to some abnormal ASIC behavior.
> > +                Expected behavior:
> > +                When mac_reset is written 1, the ASIC MT52132 is released
> > +                from the reset state, when 0 - is hold in reset state.
> > +
> > +                The files are read/write.
> > +
> > +What:           /sys/devices/platform/mlxplat/mlxreg-
> io/hwmon/hwmon*/qsfp_pwr_good
> > +Date:           May 2022
> > +KernelVersion:  5.19
> > +Contact:        Vadim Pasternak <vadimpmellanox.com>
> > +Description:    This file shows QSFP ports power status. The value is set to
> 0
> > +                when one of any QSFP ports is plugged. The value is set to 1
> when
> > +                there are no any QSFP ports are plugged.
> > +                The possible values are:
> > +                0 - Power good, 1 - Not power good.
> > +
> > +                The files are read only.

Hans de Goede May 11, 2022, 3:15 p.m. UTC | #3

Hi Michael,

On 5/11/22 16:58, Michael Shych wrote:
> Hi Hans,
> 
> I'm sorry for this form of patchset.
> It definitely was tested by checkpatch but we have several rounds of
> Internal reviews and looks that on some step patches have these errors.
> Should I resubmit all series?

No need to resubmit, I've already fixed this up manually
so as to have this merged in time for the 5.19 cycle.

Please double-check that my fixed-up version is what you
intended:

https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?h=review-hans&id=ae6e1d73ceffc61cb97343dd4fa61c74a3c75682

Regards,

Hans





>> -----Original Message-----
>> From: Hans de Goede <[e-mail]>
>> Sent: Wednesday, May 11, 2022 5:41 PM
>> To: Michael Shych <[e-mail]>
>> Cc: [e-mail]; Vadim Pasternak
>> <[e-mail]>
>> Subject: Re: [PATCH v1 3/3] Documentation/ABI: Add new attributes for
>> mlxreg-io sysfs interfaces
>>
>> Hi,
>>
>> On 4/30/22 13:58, [e-mail] wrote:
>>> From: Michael Shych <[e-mail]>
>>>
>>> Add documentation for the new attributes:
>>> - "phy_reset" - Reset PHY.
>>> - "mac_reset" - Reset MAC.
>>> - "qsfp_pwr_good" - The power status of QSFP ports.
>>>
>>> Signed-off-by: Michael Shych <[e-mail]>
>>> Reviewed-by: Vadim Pasternak <[e-mail]>
>>
>> Something has gone seriously wrong with preparing this
>> patch. It seems that the new intended contents of
>> Documentation/ABI/stable/sysfs-driver-mlxreg-io
>> was written over drivers/platform/mellanox/nvsw-sn2201.c
>> and then the result was commited and worse submitted
>> upstream.
>>
>> Next time please do a dummy run before submitting
>> patches upstream like this:
>>
>> 1. Run "git format patch HEAD~3" (3 because this time there were 3 patches)
>> 2. Run "scripts/checkpatch.pl 00*" and check for issues
>> 3. Run "$EDITOR 00*" and manually check if things are as they should be.
>>
>> I've fixed this up now by taking the last 3 documentation
>> entries from drivers/platform/mellanox/nvsw-sn2201.c after
>> applying this patch (which rewrites it into a documentation
>> file) and adding those at the end of:
>> Documentation/ABI/stable/sysfs-driver-mlxreg-io
>>
>> I also had to manually fix the indentation of the 3 new
>> entries using spaces everywhere where as the existing
>> file uses tabs everywhere.
>>
>> Once I'm done running some local tests I will push this to:
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-
>> x86.git/log/?h=review-hans
>>
>> Please double check (once pushed) that the documentation
>> commit is as it should be.
>>
>> Regards,
>>
>> Hans
>>
>>
>>
>>
>>
>>> ---
>>>  drivers/platform/mellanox/nvsw-sn2201.c | 1766 +++++++++------------------
>> ----
>>>  1 file changed, 505 insertions(+), 1261 deletions(-)
>>>
>>> diff --git a/drivers/platform/mellanox/nvsw-sn2201.c
>> b/drivers/platform/mellanox/nvsw-sn2201.c
>>> index e1ebd871da04..9e397c54dd85 100644
>>> --- a/drivers/platform/mellanox/nvsw-sn2201.c
>>> +++ b/drivers/platform/mellanox/nvsw-sn2201.c
>>> @@ -1,1261 +1,505 @@
>>> -// SPDX-License-Identifier: GPL-2.0+
>>> -/*
>>> - * Nvidia sn2201 driver
>>> - *
>>> - * Copyright (C) 2022 Nvidia Technologies Ltd.
>>> - */
>>> -
>>> -#include <linux/device.h>
>>> -#include <linux/i2c.h>
>>> -#include <linux/interrupt.h>
>>> -#include <linux/irq.h>
>>> -#include <linux/gpio.h>
>>> -#include <linux/module.h>
>>> -#include <linux/platform_data/mlxcpld.h>
>>> -#include <linux/platform_data/mlxreg.h>
>>> -#include <linux/platform_device.h>
>>> -#include <linux/regmap.h>
>>> -
>>> -/* SN2201 CPLD register offset. */
>>> -#define NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR          0x2000
>>> -#define NVSW_SN2201_CPLD_LPC_IO_RANGE               0x100
>>> -#define NVSW_SN2201_HW_VER_ID_OFFSET                0x00
>>> -#define NVSW_SN2201_BOARD_ID_OFFSET                 0x01
>>> -#define NVSW_SN2201_CPLD_VER_OFFSET                 0x02
>>> -#define NVSW_SN2201_CPLD_MVER_OFFSET                0x03
>>> -#define NVSW_SN2201_CPLD_ID_OFFSET                  0x04
>>> -#define NVSW_SN2201_CPLD_PN_OFFSET                  0x05
>>> -#define NVSW_SN2201_CPLD_PN1_OFFSET                 0x06
>>> -#define NVSW_SN2201_PSU_CTRL_OFFSET                 0x0a
>>> -#define NVSW_SN2201_QSFP28_STATUS_OFFSET            0x0b
>>> -#define NVSW_SN2201_QSFP28_INT_STATUS_OFFSET        0x0c
>>> -#define NVSW_SN2201_QSFP28_LP_STATUS_OFFSET         0x0d
>>> -#define NVSW_SN2201_QSFP28_RST_STATUS_OFFSET        0x0e
>>> -#define NVSW_SN2201_SYS_STATUS_OFFSET               0x0f
>>> -#define NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET       0x10
>>> -#define NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET       0x12
>>> -#define NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET       0x13
>>> -#define NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET   0x14
>>> -#define NVSW_SN2201_SYS_RST_STATUS_OFFSET           0x15
>>> -#define NVSW_SN2201_SYS_INT_STATUS_OFFSET           0x21
>>> -#define NVSW_SN2201_SYS_INT_MASK_OFFSET             0x22
>>> -#define NVSW_SN2201_ASIC_STATUS_OFFSET              0x24
>>> -#define NVSW_SN2201_ASIC_EVENT_OFFSET               0x25
>>> -#define NVSW_SN2201_ASIC_MAKS_OFFSET                0x26
>>> -#define NVSW_SN2201_THML_STATUS_OFFSET              0x27
>>> -#define NVSW_SN2201_THML_EVENT_OFFSET               0x28
>>> -#define NVSW_SN2201_THML_MASK_OFFSET                0x29
>>> -#define NVSW_SN2201_PS_ALT_STATUS_OFFSET            0x2a
>>> -#define NVSW_SN2201_PS_ALT_EVENT_OFFSET             0x2b
>>> -#define NVSW_SN2201_PS_ALT_MASK_OFFSET              0x2c
>>> -#define NVSW_SN2201_PS_PRSNT_STATUS_OFFSET          0x30
>>> -#define NVSW_SN2201_PS_PRSNT_EVENT_OFFSET           0x31
>>> -#define NVSW_SN2201_PS_PRSNT_MASK_OFFSET            0x32
>>> -#define NVSW_SN2201_PS_DC_OK_STATUS_OFFSET          0x33
>>> -#define NVSW_SN2201_PS_DC_OK_EVENT_OFFSET           0x34
>>> -#define NVSW_SN2201_PS_DC_OK_MASK_OFFSET            0x35
>>> -#define NVSW_SN2201_RST_CAUSE1_OFFSET               0x36
>>> -#define NVSW_SN2201_RST_CAUSE2_OFFSET               0x37
>>> -#define NVSW_SN2201_RST_SW_CTRL_OFFSET              0x38
>>> -#define NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET         0x3a
>>> -#define NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET          0x3b
>>> -#define NVSW_SN2201_FAN_PRSNT_MASK_OFFSET           0x3c
>>> -#define NVSW_SN2201_WD_TMR_OFFSET_LSB               0x40
>>> -#define NVSW_SN2201_WD_TMR_OFFSET_MSB               0x41
>>> -#define NVSW_SN2201_WD_ACT_OFFSET                   0x42
>>> -#define NVSW_SN2201_FAN_LED1_CTRL_OFFSET            0x50
>>> -#define NVSW_SN2201_FAN_LED2_CTRL_OFFSET            0x51
>>> -#define NVSW_SN2201_REG_MAX                         0x52
>>> -
>>> -/* Number of physical I2C busses. */
>>> -#define NVSW_SN2201_PHY_I2C_BUS_NUM		2
>>> -/* Number of main mux channels. */
>>> -#define NVSW_SN2201_MAIN_MUX_CHNL_NUM		8
>>> -
>>> -#define NVSW_SN2201_MAIN_NR			0
>>> -#define NVSW_SN2201_MAIN_MUX_NR			1
>>> -#define NVSW_SN2201_MAIN_MUX_DEFER_NR
>> 	(NVSW_SN2201_PHY_I2C_BUS_NUM + \
>>> -
>> NVSW_SN2201_MAIN_MUX_CHNL_NUM - 1)
>>> -
>>> -#define NVSW_SN2201_MAIN_MUX_CH0_NR
>> 	NVSW_SN2201_PHY_I2C_BUS_NUM
>>> -#define NVSW_SN2201_MAIN_MUX_CH1_NR
>> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 1)
>>> -#define NVSW_SN2201_MAIN_MUX_CH2_NR
>> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 2)
>>> -#define NVSW_SN2201_MAIN_MUX_CH3_NR
>> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 3)
>>> -#define NVSW_SN2201_MAIN_MUX_CH5_NR
>> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 5)
>>> -#define NVSW_SN2201_MAIN_MUX_CH6_NR
>> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 6)
>>> -#define NVSW_SN2201_MAIN_MUX_CH7_NR
>> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 7)
>>> -
>>> -#define NVSW_SN2201_CPLD_NR
>> 	NVSW_SN2201_MAIN_MUX_CH0_NR
>>> -#define NVSW_SN2201_NR_NONE		-1
>>> -
>>> -/* Masks for aggregation, PSU presence and power, ASIC events
>>> - * in CPLD related registers.
>>> - */
>>> -#define NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF	0xe0
>>> -#define NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF	0x04
>>> -#define NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF	0x02
>>> -#define NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF	0x10
>>> -#define NVSW_SN2201_CPLD_AGGR_MASK_DEF      \
>>> -	(NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF \
>>> -	| NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF \
>>> -	| NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF \
>>> -	| NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF)
>>> -
>>> -#define NVSW_SN2201_CPLD_ASIC_MASK		GENMASK(3, 1)
>>> -#define NVSW_SN2201_CPLD_PSU_MASK		GENMASK(1, 0)
>>> -#define NVSW_SN2201_CPLD_PWR_MASK		GENMASK(1, 0)
>>> -#define NVSW_SN2201_CPLD_FAN_MASK		GENMASK(3, 0)
>>> -
>>> -#define NVSW_SN2201_CPLD_SYSIRQ			26
>>> -#define NVSW_SN2201_LPC_SYSIRQ			28
>>> -#define NVSW_SN2201_CPLD_I2CADDR		0x41
>>> -
>>> -#define NVSW_SN2201_WD_DFLT_TIMEOUT		600
>>> -
>>> -/* nvsw_sn2201 - device private data
>>> - * @dev: platform device;
>>> - * @io_data: register access platform data;
>>> - * @led_data: LED platform data;
>>> - * @hotplug_data: hotplug platform data;
>>> - * @i2c_data: I2C controller platform data;
>>> - * @led: LED device;
>>> - * @io_regs: register access device;
>>> - * @pdev_hotplug: hotplug device;
>>> - * @sn2201_devs: I2C devices for sn2201 devices;
>>> - * @sn2201_devs_num: number of I2C devices for sn2201 device;
>>> - * @main_mux_devs: I2C devices for main mux;
>>> - * @main_mux_devs_num: number of I2C devices for main mux;
>>> - * @cpld_devs: I2C devices for cpld;
>>> - * @cpld_devs_num: number of I2C devices for cpld;
>>> - * @main_mux_deferred_nr: I2C adapter number must be exist prior
>> creating devices execution;
>>> - */
>>> -struct nvsw_sn2201 {
>>> -	struct device *dev;
>>> -	struct mlxreg_core_platform_data *io_data;
>>> -	struct mlxreg_core_platform_data *led_data;
>>> -	struct mlxreg_core_platform_data *wd_data;
>>> -	struct mlxreg_core_hotplug_platform_data *hotplug_data;
>>> -	struct mlxreg_core_hotplug_platform_data *i2c_data;
>>> -	struct platform_device *led;
>>> -	struct platform_device *wd;
>>> -	struct platform_device *io_regs;
>>> -	struct platform_device *pdev_hotplug;
>>> -	struct platform_device *pdev_i2c;
>>> -	struct mlxreg_hotplug_device *sn2201_devs;
>>> -	int sn2201_devs_num;
>>> -	struct mlxreg_hotplug_device *main_mux_devs;
>>> -	int main_mux_devs_num;
>>> -	struct mlxreg_hotplug_device *cpld_devs;
>>> -	int cpld_devs_num;
>>> -	int main_mux_deferred_nr;
>>> -};
>>> -
>>> -static bool nvsw_sn2201_writeable_reg(struct device *dev, unsigned int
>> reg)
>>> -{
>>> -	switch (reg) {
>>> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
>>> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
>>> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
>>> -	case NVSW_SN2201_THML_EVENT_OFFSET:
>>> -	case NVSW_SN2201_THML_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
>>> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
>>> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
>>> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
>>> -	case NVSW_SN2201_WD_ACT_OFFSET:
>>> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
>>> -		return true;
>>> -	}
>>> -	return false;
>>> -}
>>> -
>>> -static bool nvsw_sn2201_readable_reg(struct device *dev, unsigned int
>> reg)
>>> -{
>>> -	switch (reg) {
>>> -	case NVSW_SN2201_HW_VER_ID_OFFSET:
>>> -	case NVSW_SN2201_BOARD_ID_OFFSET:
>>> -	case NVSW_SN2201_CPLD_VER_OFFSET:
>>> -	case NVSW_SN2201_CPLD_MVER_OFFSET:
>>> -	case NVSW_SN2201_CPLD_ID_OFFSET:
>>> -	case NVSW_SN2201_CPLD_PN_OFFSET:
>>> -	case NVSW_SN2201_CPLD_PN1_OFFSET:
>>> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_STATUS_OFFSET:
>>> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
>>> -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
>>> -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
>>> -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
>>> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
>>> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
>>> -	case NVSW_SN2201_THML_STATUS_OFFSET:
>>> -	case NVSW_SN2201_THML_EVENT_OFFSET:
>>> -	case NVSW_SN2201_THML_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
>>> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
>>> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
>>> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
>>> -	case NVSW_SN2201_WD_ACT_OFFSET:
>>> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
>>> -		return true;
>>> -	}
>>> -	return false;
>>> -}
>>> -
>>> -static bool nvsw_sn2201_volatile_reg(struct device *dev, unsigned int reg)
>>> -{
>>> -	switch (reg) {
>>> -	case NVSW_SN2201_HW_VER_ID_OFFSET:
>>> -	case NVSW_SN2201_BOARD_ID_OFFSET:
>>> -	case NVSW_SN2201_CPLD_VER_OFFSET:
>>> -	case NVSW_SN2201_CPLD_MVER_OFFSET:
>>> -	case NVSW_SN2201_CPLD_ID_OFFSET:
>>> -	case NVSW_SN2201_CPLD_PN_OFFSET:
>>> -	case NVSW_SN2201_CPLD_PN1_OFFSET:
>>> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_STATUS_OFFSET:
>>> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
>>> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
>>> -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
>>> -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
>>> -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
>>> -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
>>> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
>>> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
>>> -	case NVSW_SN2201_THML_STATUS_OFFSET:
>>> -	case NVSW_SN2201_THML_EVENT_OFFSET:
>>> -	case NVSW_SN2201_THML_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
>>> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
>>> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
>>> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
>>> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
>>> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
>>> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
>>> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
>>> -		return true;
>>> -	}
>>> -	return false;
>>> -}
>>> -
>>> -static const struct reg_default nvsw_sn2201_regmap_default[] = {
>>> -	{ NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET, 0x00 },
>>> -	{ NVSW_SN2201_WD_ACT_OFFSET, 0x00 },
>>> -};
>>> -
>>> -/* Configuration for the register map of a device with 1 bytes address
>> space. */
>>> -static const struct regmap_config nvsw_sn2201_regmap_conf = {
>>> -	.reg_bits = 8,
>>> -	.val_bits = 8,
>>> -	.max_register = NVSW_SN2201_REG_MAX,
>>> -	.cache_type = REGCACHE_FLAT,
>>> -	.writeable_reg = nvsw_sn2201_writeable_reg,
>>> -	.readable_reg = nvsw_sn2201_readable_reg,
>>> -	.volatile_reg = nvsw_sn2201_volatile_reg,
>>> -	.reg_defaults = nvsw_sn2201_regmap_default,
>>> -	.num_reg_defaults = ARRAY_SIZE(nvsw_sn2201_regmap_default),
>>> -};
>>> -
>>> -/* Regions for LPC I2C controller and LPC base register space. */
>>> -static const struct resource nvsw_sn2201_lpc_io_resources[] = {
>>> -	[0] =
>> DEFINE_RES_NAMED(NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR,
>>> -			       NVSW_SN2201_CPLD_LPC_IO_RANGE,
>>> -			       "mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
>>> -};
>>> -
>>> -static struct resource nvsw_sn2201_cpld_res[] = {
>>> -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_CPLD_SYSIRQ,
>> "mlxreg-hotplug"),
>>> -};
>>> -
>>> -static struct resource nvsw_sn2201_lpc_res[] = {
>>> -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_LPC_SYSIRQ, "i2c-
>> mlxcpld"),
>>> -};
>>> -
>>> -/* SN2201 I2C platform data. */
>>> -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_i2c_data = {
>>> -	.irq = NVSW_SN2201_CPLD_SYSIRQ,
>>> -};
>>> -
>>> -/* SN2201 CPLD device. */
>>> -static struct i2c_board_info nvsw_sn2201_cpld_devices[] = {
>>> -	{
>>> -		I2C_BOARD_INFO("nvsw-sn2201", 0x41),
>>> -	},
>>> -};
>>> -
>>> -/* SN2201 CPLD board info. */
>>> -static struct mlxreg_hotplug_device nvsw_sn2201_cpld_brdinfo[] = {
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_cpld_devices[0],
>>> -		.nr = NVSW_SN2201_CPLD_NR,
>>> -	},
>>> -};
>>> -
>>> -/* SN2201 main mux device. */
>>> -static struct i2c_board_info nvsw_sn2201_main_mux_devices[] = {
>>> -	{
>>> -		I2C_BOARD_INFO("pca9548", 0x70),
>>> -	},
>>> -};
>>> -
>>> -/* SN2201 main mux board info. */
>>> -static struct mlxreg_hotplug_device nvsw_sn2201_main_mux_brdinfo[] = {
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_main_mux_devices[0],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_NR,
>>> -	},
>>> -};
>>> -
>>> -/* SN2201 power devices. */
>>> -static struct i2c_board_info nvsw_sn2201_pwr_devices[] = {
>>> -	{
>>> -		I2C_BOARD_INFO("pmbus", 0x58),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("pmbus", 0x58),
>>> -	},
>>> -};
>>> -
>>> -/* SN2201 fan devices. */
>>> -static struct i2c_board_info nvsw_sn2201_fan_devices[] = {
>>> -	{
>>> -		I2C_BOARD_INFO("24c02", 0x50),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("24c02", 0x51),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("24c02", 0x52),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("24c02", 0x53),
>>> -	},
>>> -};
>>> -
>>> -/* SN2201 hotplug default data. */
>>> -static struct mlxreg_core_data nvsw_sn2201_psu_items_data[] = {
>>> -	{
>>> -		.label = "psu1",
>>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
>>> -		.mask = BIT(0),
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -	{
>>> -		.label = "psu2",
>>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
>>> -		.mask = BIT(1),
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -};
>>> -
>>> -static struct mlxreg_core_data nvsw_sn2201_pwr_items_data[] = {
>>> -	{
>>> -		.label = "pwr1",
>>> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
>>> -		.mask = BIT(0),
>>> -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[0],
>>> -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH1_NR,
>>> -	},
>>> -	{
>>> -		.label = "pwr2",
>>> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
>>> -		.mask = BIT(1),
>>> -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[1],
>>> -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH2_NR,
>>> -	},
>>> -};
>>> -
>>> -static struct mlxreg_core_data nvsw_sn2201_fan_items_data[] = {
>>> -	{
>>> -		.label = "fan1",
>>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
>>> -		.mask = BIT(0),
>>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[0],
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -	{
>>> -		.label = "fan2",
>>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
>>> -		.mask = BIT(1),
>>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[1],
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -	{
>>> -		.label = "fan3",
>>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
>>> -		.mask = BIT(2),
>>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[2],
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -	{
>>> -		.label = "fan4",
>>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
>>> -		.mask = BIT(3),
>>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[3],
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -};
>>> -
>>> -static struct mlxreg_core_data nvsw_sn2201_sys_items_data[] = {
>>> -	{
>>> -		.label = "nic_smb_alert",
>>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
>>> -		.mask = BIT(1),
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -	{
>>> -		.label = "cpu_sd",
>>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
>>> -		.mask = BIT(2),
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -	{
>>> -		.label = "mac_health",
>>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
>>> -		.mask = BIT(3),
>>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
>>> -	},
>>> -};
>>> -
>>> -static struct mlxreg_core_item nvsw_sn2201_items[] = {
>>> -	{
>>> -		.data = nvsw_sn2201_psu_items_data,
>>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF,
>>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
>>> -		.mask = NVSW_SN2201_CPLD_PSU_MASK,
>>> -		.count = ARRAY_SIZE(nvsw_sn2201_psu_items_data),
>>> -		.inversed = 1,
>>> -		.health = false,
>>> -	},
>>> -	{
>>> -		.data = nvsw_sn2201_pwr_items_data,
>>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF,
>>> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
>>> -		.mask = NVSW_SN2201_CPLD_PWR_MASK,
>>> -		.count = ARRAY_SIZE(nvsw_sn2201_pwr_items_data),
>>> -		.inversed = 0,
>>> -		.health = false,
>>> -	},
>>> -	{
>>> -		.data = nvsw_sn2201_fan_items_data,
>>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF,
>>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
>>> -		.mask = NVSW_SN2201_CPLD_FAN_MASK,
>>> -		.count = ARRAY_SIZE(nvsw_sn2201_fan_items_data),
>>> -		.inversed = 1,
>>> -		.health = false,
>>> -	},
>>> -	{
>>> -		.data = nvsw_sn2201_sys_items_data,
>>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF,
>>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
>>> -		.mask = NVSW_SN2201_CPLD_ASIC_MASK,
>>> -		.count = ARRAY_SIZE(nvsw_sn2201_sys_items_data),
>>> -		.inversed = 1,
>>> -		.health = false,
>>> -	},
>>> -};
>>> -
>>> -static
>>> -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_hotplug = {
>>> -	.items = nvsw_sn2201_items,
>>> -	.counter = ARRAY_SIZE(nvsw_sn2201_items),
>>> -	.cell = NVSW_SN2201_SYS_INT_STATUS_OFFSET,
>>> -	.mask = NVSW_SN2201_CPLD_AGGR_MASK_DEF,
>>> -};
>>> -
>>> -/* SN2201 static devices. */
>>> -static struct i2c_board_info nvsw_sn2201_static_devices[] = {
>>> -	{
>>> -		I2C_BOARD_INFO("24c02", 0x57),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("lm75", 0x4b),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("24c64", 0x56),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("ads1015", 0x49),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("pca9546", 0x71),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("emc2305", 0x4d),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("lm75", 0x49),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("pca9555", 0x27),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("powr1014", 0x37),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("lm75", 0x4f),
>>> -	},
>>> -	{
>>> -		I2C_BOARD_INFO("pmbus", 0x40),
>>> -	},
>>> -};
>>> -
>>> -/* SN2201 default static board info. */
>>> -static struct mlxreg_hotplug_device nvsw_sn2201_static_brdinfo[] = {
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[0],
>>> -		.nr = NVSW_SN2201_MAIN_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[1],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[2],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[3],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[4],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH3_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[5],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[6],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[7],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[8],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[9],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
>>> -	},
>>> -	{
>>> -		.brdinfo = &nvsw_sn2201_static_devices[10],
>>> -		.nr = NVSW_SN2201_MAIN_MUX_CH7_NR,
>>> -	},
>>> -};
>>> -
>>> -/* LED default data. */
>>> -static struct mlxreg_core_data nvsw_sn2201_led_data[] = {
>>> -	{
>>> -		.label = "status:green",
>>> -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "status:orange",
>>> -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "psu:green",
>>> -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "psu:orange",
>>> -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "uid:blue",
>>> -		.reg = NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "fan1:green",
>>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "fan1:orange",
>>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "fan2:green",
>>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
>>> -		.mask = GENMASK(3, 0),
>>> -	},
>>> -	{
>>> -		.label = "fan2:orange",
>>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
>>> -		.mask = GENMASK(3, 0),
>>> -	},
>>> -	{
>>> -		.label = "fan3:green",
>>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "fan3:orange",
>>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 4),
>>> -	},
>>> -	{
>>> -		.label = "fan4:green",
>>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
>>> -		.mask = GENMASK(3, 0),
>>> -	},
>>> -	{
>>> -		.label = "fan4:orange",
>>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
>>> -		.mask = GENMASK(3, 0),
>>> -	},
>>> -};
>>> -
>>> -static struct mlxreg_core_platform_data nvsw_sn2201_led = {
>>> -	.data = nvsw_sn2201_led_data,
>>> -	.counter = ARRAY_SIZE(nvsw_sn2201_led_data),
>>> -};
>>> -
>>> -/* Default register access data. */
>>> -static struct mlxreg_core_data nvsw_sn2201_io_data[] = {
>>> -	{
>>> -		.label = "cpld1_version",
>>> -		.reg = NVSW_SN2201_CPLD_VER_OFFSET,
>>> -		.bit = GENMASK(7, 0),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "cpld1_version_min",
>>> -		.reg = NVSW_SN2201_CPLD_MVER_OFFSET,
>>> -		.bit = GENMASK(7, 0),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "cpld1_pn",
>>> -		.reg = NVSW_SN2201_CPLD_PN_OFFSET,
>>> -		.bit = GENMASK(15, 0),
>>> -		.mode = 0444,
>>> -		.regnum = 2,
>>> -	},
>>> -	{
>>> -		.label = "psu1_on",
>>> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(0),
>>> -		.mode = 0644,
>>> -	},
>>> -	{
>>> -		.label = "psu2_on",
>>> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(1),
>>> -		.mode = 0644,
>>> -	},
>>> -	{
>>> -		.label = "pwr_cycle",
>>> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(2),
>>> -		.mode = 0644,
>>> -	},
>>> -	{
>>> -		.label = "asic_health",
>>> -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
>>> -		.mask = GENMASK(4, 3),
>>> -		.bit = 4,
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "qsfp_pwr_good",
>>> -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(0),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "phy_reset",
>>> -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(3),
>>> -		.mode = 0644,
>>> -	},
>>> -	{
>>> -		.label = "mac_reset",
>>> -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(2),
>>> -		.mode = 0644,
>>> -	},
>>> -	{
>>> -		.label = "pwr_down",
>>> -		.reg = NVSW_SN2201_RST_SW_CTRL_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(0),
>>> -		.mode = 0644,
>>> -	},
>>> -	{
>>> -		.label = "reset_long_pb",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(0),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_short_pb",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(1),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_aux_pwr_or_fu",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(2),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_swb_dc_dc_pwr_fail",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(3),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_sw_reset",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(4),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_fw_reset",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(5),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_swb_wd",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(6),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_asic_thermal",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(7),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_system",
>>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(1),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_sw_pwr_off",
>>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(2),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_cpu_pwr_fail_thermal",
>>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(4),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_reload_bios",
>>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(5),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "reset_ac_pwr_fail",
>>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(6),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "psu1",
>>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(0),
>>> -		.mode = 0444,
>>> -	},
>>> -	{
>>> -		.label = "psu2",
>>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(1),
>>> -		.mode = 0444,
>>> -	},
>>> -};
>>> -
>>> -static struct mlxreg_core_platform_data nvsw_sn2201_regs_io = {
>>> -	.data = nvsw_sn2201_io_data,
>>> -	.counter = ARRAY_SIZE(nvsw_sn2201_io_data),
>>> -};
>>> -
>>> -/* Default watchdog data. */
>>> -static struct mlxreg_core_data nvsw_sn2201_wd_data[] = {
>>> -	{
>>> -		.label = "action",
>>> -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
>>> -		.mask = GENMASK(7, 1),
>>> -		.bit = 0,
>>> -	},
>>> -	{
>>> -		.label = "timeout",
>>> -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
>>> -		.mask = 0,
>>> -		.health_cntr = NVSW_SN2201_WD_DFLT_TIMEOUT,
>>> -	},
>>> -	{
>>> -		.label = "timeleft",
>>> -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
>>> -		.mask = 0,
>>> -	},
>>> -	{
>>> -		.label = "ping",
>>> -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
>>> -		.mask = GENMASK(7, 1),
>>> -		.bit = 0,
>>> -	},
>>> -	{
>>> -		.label = "reset",
>>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
>>> -		.mask = GENMASK(7, 0) & ~BIT(6),
>>> -		.bit = 6,
>>> -	},
>>> -};
>>> -
>>> -static struct mlxreg_core_platform_data nvsw_sn2201_wd = {
>>> -	.data = nvsw_sn2201_wd_data,
>>> -	.counter = ARRAY_SIZE(nvsw_sn2201_wd_data),
>>> -	.version = MLX_WDT_TYPE3,
>>> -	.identity = "mlx-wdt-main",
>>> -};
>>> -
>>> -static int
>>> -nvsw_sn2201_create_static_devices(struct nvsw_sn2201 *nvsw_sn2201,
>>> -				  struct mlxreg_hotplug_device *devs,
>>> -				  int size)
>>> -{
>>> -	struct mlxreg_hotplug_device *dev = devs;
>>> -	int i;
>>> -
>>> -	/* Create I2C static devices. */
>>> -	for (i = 0; i < size; i++, dev++) {
>>> -		dev->client = i2c_new_client_device(dev->adapter, dev-
>>> brdinfo);
>>> -		if (IS_ERR(dev->client)) {
>>> -			dev_err(nvsw_sn2201->dev, "Failed to create client
>> %s at bus %d at addr 0x%02x\n",
>>> -				dev->brdinfo->type,
>>> -				dev->nr, dev->brdinfo->addr);
>>> -
>>> -			dev->adapter = NULL;
>>> -			goto fail_create_static_devices;
>>> -		}
>>> -	}
>>> -
>>> -	return 0;
>>> -
>>> -fail_create_static_devices:
>>> -	while (--i >= 0) {
>>> -		dev = devs + i;
>>> -		i2c_unregister_device(dev->client);
>>> -		dev->client = NULL;
>>> -		dev->adapter = NULL;
>>> -	}
>>> -	return IS_ERR(dev->client);
>>> -}
>>> -
>>> -static void nvsw_sn2201_destroy_static_devices(struct nvsw_sn2201
>> *nvsw_sn2201,
>>> -					       struct mlxreg_hotplug_device
>> *devs, int size)
>>> -{
>>> -	struct mlxreg_hotplug_device *dev = devs;
>>> -	int i;
>>> -
>>> -	/* Destroy static I2C device for SN2201 static devices. */
>>> -	for (i = 0; i < size; i++, dev++) {
>>> -		if (dev->client) {
>>> -			i2c_unregister_device(dev->client);
>>> -			dev->client = NULL;
>>> -			i2c_put_adapter(dev->adapter);
>>> -			dev->adapter = NULL;
>>> -		}
>>> -	}
>>> -}
>>> -
>>> -static int nvsw_sn2201_config_post_init(struct nvsw_sn2201
>> *nvsw_sn2201)
>>> -{
>>> -	struct mlxreg_hotplug_device *sn2201_dev;
>>> -	struct i2c_adapter *adap;
>>> -	struct device *dev;
>>> -	int i, j, err;
>>> -
>>> -	dev = nvsw_sn2201->dev;
>>> -	adap = i2c_get_adapter(nvsw_sn2201->main_mux_deferred_nr);
>>> -	if (!adap) {
>>> -		dev_err(dev, "Failed to get adapter for bus %d\n",
>>> -			nvsw_sn2201->main_mux_deferred_nr);
>>> -		return -ENODEV;
>>> -	}
>>> -	i2c_put_adapter(adap);
>>> -
>>> -	/* Update board info. */
>>> -	sn2201_dev = nvsw_sn2201->sn2201_devs;
>>> -	for (i = 0, j = 0; i < nvsw_sn2201->sn2201_devs_num; i++,
>> sn2201_dev++) {
>>> -		sn2201_dev->adapter = i2c_get_adapter(sn2201_dev->nr);
>>> -		if (!sn2201_dev->adapter)
>>> -			return -ENODEV;
>>> -		i2c_put_adapter(sn2201_dev->adapter);
>>> -	}
>>> -
>>> -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201,
>> nvsw_sn2201->sn2201_devs,
>>> -						nvsw_sn2201-
>>> sn2201_devs_num);
>>> -	if (err)
>>> -		dev_err(dev, "Failed to create static devices\n");
>>> -
>>> -	return err;
>>> -}
>>> -
>>> -static int nvsw_sn2201_config_init(struct nvsw_sn2201 *nvsw_sn2201,
>> void *regmap)
>>> -{
>>> -	struct device *dev = nvsw_sn2201->dev;
>>> -	int err;
>>> -
>>> -	nvsw_sn2201->io_data = &nvsw_sn2201_regs_io;
>>> -	nvsw_sn2201->led_data = &nvsw_sn2201_led;
>>> -	nvsw_sn2201->wd_data = &nvsw_sn2201_wd;
>>> -	nvsw_sn2201->hotplug_data = &nvsw_sn2201_hotplug;
>>> -
>>> -	/* Register IO access driver. */
>>> -	if (nvsw_sn2201->io_data) {
>>> -		nvsw_sn2201->io_data->regmap = regmap;
>>> -		nvsw_sn2201->io_regs =
>>> -		platform_device_register_resndata(dev, "mlxreg-io",
>> PLATFORM_DEVID_NONE, NULL, 0,
>>> -						  nvsw_sn2201->io_data,
>>> -						  sizeof(*nvsw_sn2201-
>>> io_data));
>>> -		if (IS_ERR(nvsw_sn2201->io_regs)) {
>>> -			err = PTR_ERR(nvsw_sn2201->io_regs);
>>> -			goto fail_register_io;
>>> -		}
>>> -	}
>>> -
>>> -	/* Register LED driver. */
>>> -	if (nvsw_sn2201->led_data) {
>>> -		nvsw_sn2201->led_data->regmap = regmap;
>>> -		nvsw_sn2201->led =
>>> -		platform_device_register_resndata(dev, "leds-mlxreg",
>> PLATFORM_DEVID_NONE, NULL, 0,
>>> -						  nvsw_sn2201->led_data,
>>> -						  sizeof(*nvsw_sn2201-
>>> led_data));
>>> -		if (IS_ERR(nvsw_sn2201->led)) {
>>> -			err = PTR_ERR(nvsw_sn2201->led);
>>> -			goto fail_register_led;
>>> -		}
>>> -	}
>>> -
>>> -	/* Register WD driver. */
>>> -	if (nvsw_sn2201->wd_data) {
>>> -		nvsw_sn2201->wd_data->regmap = regmap;
>>> -		nvsw_sn2201->wd =
>>> -		platform_device_register_resndata(dev, "mlx-wdt",
>> PLATFORM_DEVID_NONE, NULL, 0,
>>> -						  nvsw_sn2201->wd_data,
>>> -						  sizeof(*nvsw_sn2201-
>>> wd_data));
>>> -		if (IS_ERR(nvsw_sn2201->wd)) {
>>> -			err = PTR_ERR(nvsw_sn2201->wd);
>>> -			goto fail_register_wd;
>>> -		}
>>> -	}
>>> -
>>> -	/* Register hotplug driver. */
>>> -	if (nvsw_sn2201->hotplug_data) {
>>> -		nvsw_sn2201->hotplug_data->regmap = regmap;
>>> -		nvsw_sn2201->pdev_hotplug =
>>> -		platform_device_register_resndata(dev, "mlxreg-hotplug",
>> PLATFORM_DEVID_NONE,
>>> -						  nvsw_sn2201_cpld_res,
>>> -
>> ARRAY_SIZE(nvsw_sn2201_cpld_res),
>>> -						  nvsw_sn2201-
>>> hotplug_data,
>>> -						  sizeof(*nvsw_sn2201-
>>> hotplug_data));
>>> -		if (IS_ERR(nvsw_sn2201->pdev_hotplug)) {
>>> -			err = PTR_ERR(nvsw_sn2201->pdev_hotplug);
>>> -			goto fail_register_hotplug;
>>> -		}
>>> -	}
>>> -
>>> -	return nvsw_sn2201_config_post_init(nvsw_sn2201);
>>> -
>>> -fail_register_hotplug:
>>> -	if (nvsw_sn2201->wd)
>>> -		platform_device_unregister(nvsw_sn2201->wd);
>>> -fail_register_wd:
>>> -	if (nvsw_sn2201->led)
>>> -		platform_device_unregister(nvsw_sn2201->led);
>>> -fail_register_led:
>>> -	if (nvsw_sn2201->io_regs)
>>> -		platform_device_unregister(nvsw_sn2201->io_regs);
>>> -fail_register_io:
>>> -
>>> -	return err;
>>> -}
>>> -
>>> -static void nvsw_sn2201_config_exit(struct nvsw_sn2201 *nvsw_sn2201)
>>> -{
>>> -	/* Unregister hotplug driver. */
>>> -	if (nvsw_sn2201->pdev_hotplug)
>>> -		platform_device_unregister(nvsw_sn2201->pdev_hotplug);
>>> -	/* Unregister WD driver. */
>>> -	if (nvsw_sn2201->wd)
>>> -		platform_device_unregister(nvsw_sn2201->wd);
>>> -	/* Unregister LED driver. */
>>> -	if (nvsw_sn2201->led)
>>> -		platform_device_unregister(nvsw_sn2201->led);
>>> -	/* Unregister IO access driver. */
>>> -	if (nvsw_sn2201->io_regs)
>>> -		platform_device_unregister(nvsw_sn2201->io_regs);
>>> -}
>>> -
>>> -/*
>>> - * Initialization is divided into two parts:
>>> - * - I2C main bus init.
>>> - * - Mux creation and attaching devices to the mux,
>>> - *   which assumes that the main bus is already created.
>>> - * This separation is required for synchronization between these two
>> parts.
>>> - * Completion notify callback is used to make this flow synchronized.
>>> - */
>>> -static int nvsw_sn2201_i2c_completion_notify(void *handle, int id)
>>> -{
>>> -	struct nvsw_sn2201 *nvsw_sn2201 = handle;
>>> -	void *regmap;
>>> -	int i, err;
>>> -
>>> -	/* Create main mux. */
>>> -	nvsw_sn2201->main_mux_devs->adapter =
>> i2c_get_adapter(nvsw_sn2201->main_mux_devs->nr);
>>> -	if (!nvsw_sn2201->main_mux_devs->adapter) {
>>> -		err = -ENODEV;
>>> -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus
>> %d\n",
>>> -			nvsw_sn2201->cpld_devs->nr);
>>> -		goto i2c_get_adapter_main_fail;
>>> -	}
>>> -
>>> -	nvsw_sn2201->main_mux_devs_num =
>> ARRAY_SIZE(nvsw_sn2201_main_mux_brdinfo);
>>> -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201,
>> nvsw_sn2201->main_mux_devs,
>>> -						nvsw_sn2201-
>>> main_mux_devs_num);
>>> -	if (err) {
>>> -		dev_err(nvsw_sn2201->dev, "Failed to create main mux
>> devices\n");
>>> -		goto nvsw_sn2201_create_static_devices_fail;
>>> -	}
>>> -
>>> -	nvsw_sn2201->cpld_devs->adapter = i2c_get_adapter(nvsw_sn2201-
>>> cpld_devs->nr);
>>> -	if (!nvsw_sn2201->cpld_devs->adapter) {
>>> -		err = -ENODEV;
>>> -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus
>> %d\n",
>>> -			nvsw_sn2201->cpld_devs->nr);
>>> -		goto i2c_get_adapter_fail;
>>> -	}
>>> -
>>> -	/* Create CPLD device. */
>>> -	nvsw_sn2201->cpld_devs->client =
>> i2c_new_dummy_device(nvsw_sn2201->cpld_devs->adapter,
>>> -
>> NVSW_SN2201_CPLD_I2CADDR);
>>> -	if (IS_ERR(nvsw_sn2201->cpld_devs->client)) {
>>> -		err = PTR_ERR(nvsw_sn2201->cpld_devs->client);
>>> -		dev_err(nvsw_sn2201->dev, "Failed to create %s cpld device
>> at bus %d at addr 0x%02x\n",
>>> -			nvsw_sn2201->cpld_devs->brdinfo->type,
>> nvsw_sn2201->cpld_devs->nr,
>>> -			nvsw_sn2201->cpld_devs->brdinfo->addr);
>>> -		goto i2c_new_dummy_fail;
>>> -	}
>>> -
>>> -	regmap = devm_regmap_init_i2c(nvsw_sn2201->cpld_devs->client,
>> &nvsw_sn2201_regmap_conf);
>>> -	if (IS_ERR(regmap)) {
>>> -		err = PTR_ERR(regmap);
>>> -		dev_err(nvsw_sn2201->dev, "Failed to initialise managed
>> register map\n");
>>> -		goto devm_regmap_init_i2c_fail;
>>> -	}
>>> -
>>> -	/* Set default registers. */
>>> -	for (i = 0; i < nvsw_sn2201_regmap_conf.num_reg_defaults; i++) {
>>> -		err = regmap_write(regmap,
>> nvsw_sn2201_regmap_default[i].reg,
>>> -				   nvsw_sn2201_regmap_default[i].def);
>>> -		if (err) {
>>> -			dev_err(nvsw_sn2201->dev, "Failed to set register at
>> offset 0x%02x to default value: 0x%02x\n",
>>> -				nvsw_sn2201_regmap_default[i].reg,
>>> -				nvsw_sn2201_regmap_default[i].def);
>>> -			goto regmap_write_fail;
>>> -		}
>>> -	}
>>> -
>>> -	/* Sync registers with hardware. */
>>> -	regcache_mark_dirty(regmap);
>>> -	err = regcache_sync(regmap);
>>> -	if (err) {
>>> -		dev_err(nvsw_sn2201->dev, "Failed to Sync registers with
>> hardware\n");
>>> -		goto regcache_sync_fail;
>>> -	}
>>> -
>>> -	/* Configure SN2201 board. */
>>> -	err = nvsw_sn2201_config_init(nvsw_sn2201, regmap);
>>> -	if (err) {
>>> -		dev_err(nvsw_sn2201->dev, "Failed to configure board\n");
>>> -		goto nvsw_sn2201_config_init_fail;
>>> -	}
>>> -
>>> -	return 0;
>>> -
>>> -nvsw_sn2201_config_init_fail:
>>> -	nvsw_sn2201_config_exit(nvsw_sn2201);
>>> -regcache_sync_fail:
>>> -regmap_write_fail:
>>> -devm_regmap_init_i2c_fail:
>>> -i2c_new_dummy_fail:
>>> -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
>>> -	nvsw_sn2201->cpld_devs->adapter = NULL;
>>> -i2c_get_adapter_fail:
>>> -	/* Destroy SN2201 static I2C devices. */
>>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201-
>>> sn2201_devs,
>>> -					   nvsw_sn2201->sn2201_devs_num);
>>> -	/* Destroy main mux device. */
>>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201-
>>> main_mux_devs,
>>> -					   nvsw_sn2201-
>>> main_mux_devs_num);
>>> -nvsw_sn2201_create_static_devices_fail:
>>> -	i2c_put_adapter(nvsw_sn2201->main_mux_devs->adapter);
>>> -i2c_get_adapter_main_fail:
>>> -	return err;
>>> -}
>>> -
>>> -static int nvsw_sn2201_config_pre_init(struct nvsw_sn2201
>> *nvsw_sn2201)
>>> -{
>>> -	nvsw_sn2201->i2c_data = &nvsw_sn2201_i2c_data;
>>> -
>>> -	/* Register I2C controller. */
>>> -	nvsw_sn2201->i2c_data->handle = nvsw_sn2201;
>>> -	nvsw_sn2201->i2c_data->completion_notify =
>> nvsw_sn2201_i2c_completion_notify;
>>> -	nvsw_sn2201->pdev_i2c =
>> platform_device_register_resndata(nvsw_sn2201->dev, "i2c_mlxcpld",
>>> -
>> NVSW_SN2201_MAIN_MUX_NR,
>>> -
>> nvsw_sn2201_lpc_res,
>>> -
>> ARRAY_SIZE(nvsw_sn2201_lpc_res),
>>> -
>> nvsw_sn2201->i2c_data,
>>> -
>> sizeof(*nvsw_sn2201->i2c_data));
>>> -	if (IS_ERR(nvsw_sn2201->pdev_i2c))
>>> -		return PTR_ERR(nvsw_sn2201->pdev_i2c);
>>> -
>>> -	return 0;
>>> -}
>>> -
>>> -static int nvsw_sn2201_probe(struct platform_device *pdev)
>>> -{
>>> -	struct nvsw_sn2201 *nvsw_sn2201;
>>> -
>>> -	nvsw_sn2201 = devm_kzalloc(&pdev->dev, sizeof(*nvsw_sn2201),
>> GFP_KERNEL);
>>> -	if (!nvsw_sn2201)
>>> -		return -ENOMEM;
>>> -
>>> -	nvsw_sn2201->dev = &pdev->dev;
>>> -	platform_set_drvdata(pdev, nvsw_sn2201);
>>> -	platform_device_add_resources(pdev,
>> nvsw_sn2201_lpc_io_resources,
>>> -
>> ARRAY_SIZE(nvsw_sn2201_lpc_io_resources));
>>> -
>>> -	nvsw_sn2201->main_mux_deferred_nr =
>> NVSW_SN2201_MAIN_MUX_DEFER_NR;
>>> -	nvsw_sn2201->main_mux_devs = nvsw_sn2201_main_mux_brdinfo;
>>> -	nvsw_sn2201->cpld_devs = nvsw_sn2201_cpld_brdinfo;
>>> -	nvsw_sn2201->sn2201_devs = nvsw_sn2201_static_brdinfo;
>>> -	nvsw_sn2201->sn2201_devs_num =
>> ARRAY_SIZE(nvsw_sn2201_static_brdinfo);
>>> -
>>> -	return nvsw_sn2201_config_pre_init(nvsw_sn2201);
>>> -}
>>> -
>>> -static int nvsw_sn2201_remove(struct platform_device *pdev)
>>> -{
>>> -	struct nvsw_sn2201 *nvsw_sn2201 = platform_get_drvdata(pdev);
>>> -
>>> -	/* Unregister underlying drivers. */
>>> -	nvsw_sn2201_config_exit(nvsw_sn2201);
>>> -
>>> -	/* Destroy SN2201 static I2C devices. */
>>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
>>> -					   nvsw_sn2201->sn2201_devs,
>>> -					   nvsw_sn2201->sn2201_devs_num);
>>> -
>>> -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
>>> -	nvsw_sn2201->cpld_devs->adapter = NULL;
>>> -	/* Destroy main mux device. */
>>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
>>> -					   nvsw_sn2201->main_mux_devs,
>>> -					   nvsw_sn2201-
>>> main_mux_devs_num);
>>> -
>>> -	/* Unregister I2C controller. */
>>> -	if (nvsw_sn2201->pdev_i2c)
>>> -		platform_device_unregister(nvsw_sn2201->pdev_i2c);
>>> -
>>> -	return 0;
>>> -}
>>> -
>>> -static const struct acpi_device_id nvsw_sn2201_acpi_ids[] = {
>>> -	{"NVSN2201", 0},
>>> -	{}
>>> -};
>>> -
>>> -MODULE_DEVICE_TABLE(acpi, nvsw_sn2201_acpi_ids);
>>> -
>>> -static struct platform_driver nvsw_sn2201_driver = {
>>> -	.probe = nvsw_sn2201_probe,
>>> -	.remove = nvsw_sn2201_remove,
>>> -	.driver = {
>>> -		.name = "nvsw-sn2201",
>>> -	.acpi_match_table = nvsw_sn2201_acpi_ids,
>>> -	},
>>> -};
>>> -
>>> -module_platform_driver(nvsw_sn2201_driver);
>>> -
>>> -MODULE_AUTHOR("Nvidia");
>>> -MODULE_DESCRIPTION("Nvidia sn2201 platform driver");
>>> -MODULE_LICENSE("Dual BSD/GPL");
>>> -MODULE_ALIAS("platform:nvsw-sn2201");
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/asic_health
>>> +Date:		June 2018
>>> +KernelVersion:	4.19
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	This file shows ASIC health status. The possible values are:
>>> +		0 - health failed, 2 - health OK, 3 - ASIC in booting state.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld1_version
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld2_version
>>> +Date:		June 2018
>>> +KernelVersion:	4.19
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show with which CPLD versions have been burned
>>> +		on carrier and switch boards.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/fan_dir
>>> +Date:		December 2018
>>> +KernelVersion:	5.0
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	This file shows the system fans direction:
>>> +		forward direction - relevant bit is set 0;
>>> +		reversed direction - relevant bit is set 1.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld3_version
>>> +Date:		November 2018
>>> +KernelVersion:	5.0
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show with which CPLD versions have been burned
>>> +		on LED or Gearbox board.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/jtag_enable
>>> +Date:		November 2018
>>> +KernelVersion:	5.0
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files enable and disable the access to the JTAG domain.
>>> +		By default access to the JTAG domain is disabled.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/select_iio
>>> +Date:		June 2018
>>> +KernelVersion:	4.19
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	This file allows iio devices selection.
>>> +
>>> +		Attribute select_iio can be written with 0 or with 1. It
>>> +		selects which one of iio devices can be accessed.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/psu1_on
>>> +		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/psu2_on
>>> +		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/pwr_cycle
>>> +		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/pwr_down
>>> +Date:		June 2018
>>> +KernelVersion:	4.19
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files allow asserting system power cycling, switching
>>> +		power supply units on and off and system's main power
>> domain
>>> +		shutdown.
>>> +		Expected behavior:
>>> +		When pwr_cycle is written 1: auxiliary power domain will go
>>> +		down and after short period (about 1 second) up.
>>> +		When  psu1_on or psu2_on is written 1, related unit will be
>>> +		disconnected from the power source, when written 0 -
>> connected.
>>> +		If both are written 1 - power supplies main power domain
>> will
>>> +		go down.
>>> +		When pwr_down is written 1, system's main power domain
>> will go
>>> +		down.
>>> +
>>> +		The files are write only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_aux_pwr_or_ref
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_asic_thermal
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_hotswap_or_halt
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_hotswap_or_wd
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_fw_reset
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_long_pb
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_main_pwr_fail
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_short_pb
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_sw_reset
>>> +Date:		June 2018
>>> +KernelVersion:	4.19
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show the system reset cause, as following: power
>>> +		auxiliary outage or power refresh, ASIC thermal shutdown,
>> halt,
>>> +		hotswap, watchdog, firmware reset, long press power
>> button,
>>> +		short press power button, software reset. Value 1 in file
>> means
>>> +		this is reset cause, 0 - otherwise. Only one of the above
>>> +		causes could be 1 at the same time, representing only last
>>> +		reset cause.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_comex_pwr_fail
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_from_comex
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_system
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_voltmon_upgrade_fail
>>> +Date:		November 2018
>>> +KernelVersion:	5.0
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show the system reset cause, as following: ComEx
>>> +		power fail, reset from ComEx, system platform reset, reset
>>> +		due to voltage monitor devices upgrade failure,
>>> +		Value 1 in file means this is reset cause, 0 - otherwise.
>>> +		Only one bit could be 1 at the same time, representing only
>>> +		the last reset cause.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld4_version
>>> +Date:		November 2018
>>> +KernelVersion:	5.0
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show with which CPLD versions have been burned
>>> +		on LED board.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_comex_thermal
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_comex_wd
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_from_asic
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_reload_bios
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_sff_wd
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_swb_wd
>>> +Date:		June 2019
>>> +KernelVersion:	5.3
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show the system reset cause, as following:
>>> +		COMEX thermal shutdown; wathchdog power off or reset
>> was derived
>>> +		by one of the next components: COMEX, switch board or by
>> Small Form
>>> +		Factor mezzanine, reset requested from ASIC, reset caused
>> by BIOS
>>> +		reload. Value 1 in file means this is reset cause, 0 - otherwise.
>>> +		Only one of the above causes could be 1 at the same time,
>> representing
>>> +		only last reset cause.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/config1
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/config2
>>> +Date:		January 2020
>>> +KernelVersion:	5.6
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show system static topology identification
>>> +		like system's static I2C topology, number and type of FPGA
>>> +		devices within the system and so on.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_ac_pwr_fail
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_platform
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_soc
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/reset_sw_pwr_off
>>> +Date:		January 2020
>>> +KernelVersion:	5.6
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show the system reset causes, as following: reset
>>> +		due to AC power failure, reset invoked from software by
>>> +		assertion reset signal through CPLD. reset caused by signal
>>> +		asserted by SOC through ACPI register, reset invoked from
>>> +		software by assertion power off signal through CPLD.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/pcie_asic_reset_dis
>>> +Date:		January 2020
>>> +KernelVersion:	5.6
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	This file allows to retain ASIC up during PCIe root complex
>>> +		reset, when attribute is set 1.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/vpd_wp
>>> +Date:		January 2020
>>> +KernelVersion:	5.6
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	This file allows to overwrite system VPD hardware write
>>> +		protection when attribute is set 1.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/voltreg_update_status
>>> +Date:		January 2020
>>> +KernelVersion:	5.6
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	This file exposes the configuration update status of burnable
>>> +		voltage regulator devices. The status values are as following:
>>> +		0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
>>> +
>>> +		The file is read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/ufm_version
>>> +Date:		January 2020
>>> +KernelVersion:	5.6
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	This file exposes the firmware version of burnable voltage
>>> +		regulator devices.
>>> +
>>> +		The file is read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld1_pn
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld2_pn
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld3_pn
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld4_pn
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld1_version_min
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld2_version_min
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld3_version_min
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/cpld4_version_min
>>> +Date:		July 2020
>>> +KernelVersion:	5.9
>>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
>>> +Description:	These files show with which CPLD part numbers and minor
>>> +		versions have been burned CPLD devices equipped on a
>>> +		system.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/bios_active_image
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/bios_auth_fail
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/bios_upgrade_fail
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	The files represent BIOS statuses:
>>> +
>>> +		bios_active_image: location of current active BIOS image:
>>> +		0: Top, 1: Bottom.
>>> +		The reported value should correspond to value expected by
>> OS
>>> +		in case of BIOS safe mode is 0. This bit is related to Intel
>>> +		top-swap feature of DualBios on the same flash.
>>> +
>>> +		bios_auth_fail: BIOS upgrade is failed because provided BIOS
>>> +		image is not signed correctly.
>>> +
>>> +		bios_upgrade_fail: BIOS upgrade is failed by some other
>>> +		reason not because authentication. For example due to
>>> +		physical SPI flash problem.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc1_enable
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc2_enable
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc3_enable
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc4_enable
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc5_enable
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc6_enable
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc7_enable
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc8_enable
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files allow line cards enable state control.
>>> +		Expected behavior:
>>> +		When  lc{n}_enable is written 1, related line card is released
>>> +		from the reset state, when 0 - is hold in reset state.
>>> +
>>> +		The files are read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc1_pwr
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc2_pwr
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc3_pwr
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc4_pwr
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc5_pwr
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc6_pwr
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc7_pwr
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc8_pwr
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files switching line cards power on and off.
>>> +		Expected behavior:
>>> +		When  lc{n}_pwr is written 1, related line card is powered
>>> +		on, when written 0 - powered off.
>>> +
>>> +		The files are read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc1_rst_mask
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc2_rst_mask
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc3_rst_mask
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc4_rst_mask
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc5_rst_mask
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc6_rst_mask
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc7_rst_mask
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/lc8_rst_mask
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files clear line card reset bit enforced by ASIC, when it
>>> +		sets it due to some abnormal ASIC behavior.
>>> +		Expected behavior:
>>> +		When lc{n}_rst_mask is written 1, related line card reset bit
>>> +		is cleared, when written 0 - no effect.
>>> +
>>> +		The files are write only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/os_started
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	This file, when written 1, indicates to programmable devices
>>> +		that OS is taking control over it.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/pm_mgmt_en
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	This file assigns power management control ownership.
>>> +		When power management control is provided by hardware,
>> hardware
>>> +		will automatically power off one or more line previously
>>> +		powered line cards in case system power budget is getting
>>> +		insufficient. It could be in case when some of power units
>> lost
>>> +		power good state.
>>> +		When pm_mgmt_en is written 1, power management control
>> by
>>> +		software is enabled, 0 - power management control by
>> hardware.
>>> +		Note that for any setting of pm_mgmt_en attribute hardware
>> will
>>> +		not allow to power on any new line card in case system
>> power
>>> +		budget is insufficient.
>>> +		Same in case software will try to power on several line cards
>>> +		at once - hardware will power line cards while system has
>>> +		enough power budget.
>>> +		Default is 0.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/psu3_on
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/psu4_on
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files switching power supply units on and off.
>>> +		Expected behavior:
>>> +		When  psu3_on or psu4_on is written 1, related unit will be
>>> +		disconnected from the power source, when written 0 -
>> connected.
>>> +
>>> +		The files are write only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/shutdown_unlock
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	This file allows to unlock ASIC after thermal shutdown event.
>>> +		When system thermal shutdown is enforced by ASIC, ASIC is
>>> +		getting locked and after system boot it will not be available.
>>> +		Software can decide to unlock it by setting this attribute to
>>> +		1 and then perform system power cycle by setting pwr_cycle
>>> +		attribute to 1 (power cycle of main power domain).
>>> +		Before setting shutdown_unlock to 1 it is recommended to
>>> +		validate that system reboot cause is reset_asic_thermal or
>>> +		reset_thermal_spc_or_pciesw.
>>> +		In case shutdown_unlock is not set 1, the only way to release
>>> +		ASIC from locking - is full system power cycle through the
>>> +		external power distribution unit.
>>> +		Default is 1.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_pn
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version_min
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files show with which CPLD major and minor versions
>>> +		and part number has been burned CPLD device on line card.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_pn
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version_min
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files show with which FPGA major and minor versions
>>> +		and part number has been burned FPGA device on line card.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/vpd_wp
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	This file allow to overwrite line card VPD hardware write
>>> +		protection mode. When attribute is set 1 - write protection is
>>> +		disabled, when 0 - enabled.
>>> +		Default is 0.
>>> +		If the system is in locked-down mode writing this file will not
>>> +		be allowed.
>>> +		The purpose if this file is to allow line card VPD burning
>>> +		during production flow.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_aux_pwr_or_ref
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_dc_dc_pwr_fail
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_fpga_not_done
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_from_chassis
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_line_card
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-
>> io.*/hwmon/hwmon*/reset_pwr_off_from_chassis
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files show the line reset cause, as following: power
>>> +		auxiliary outage or power refresh, DC-to-DC power failure,
>> FPGA reset
>>> +		failed, line card reset failed, power off from chassis.
>>> +		Value 1 in file means this is reset cause, 0 - otherwise. Only
>> one of
>>> +		the above causes could be 1 at the same time, representing
>> only last
>>> +		reset cause.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld_upgrade_en
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_upgrade_en
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files allow CPLD and FPGA burning. Value 1 in file
>> means burning
>>> +		is enabled, 0 - otherwise.
>>> +		If the system is in locked-down mode writing these files will
>>> +		not be allowed.
>>> +		The purpose of these files to allow line card CPLD and FPGA
>>> +		upgrade through the JTAG daisy-chain.
>>> +
>>> +		The files are read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/qsfp_pwr_en
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/pwr_en
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files allow to power on/off all QSFP ports and whole
>> line card.
>>> +		The attributes are set 1 for power on, 0 - for power off.
>>> +
>>> +		The files are read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/agb_spi_burn_en
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_spi_burn_en
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files allow gearboxes and FPGA SPI flash burning.
>>> +		The attributes are set 1 to enable burning, 0 - to disable.
>>> +		If the system is in locked-down mode writing these files will
>>> +		not be allowed.
>>> +		The purpose of these files to allow line card Gearboxes and
>> FPGA
>>> +		burning during production flow.
>>> +
>>> +		The file is read/write.
>>> +
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/max_power
>>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
>> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/config
>>> +Date:		October 2021
>>> +KernelVersion:	5.16
>>> +Contact:	Vadim Pasternak <[e-mail]>
>>> +Description:	These files provide the maximum powered required for line
>> card
>>> +		feeding and line card configuration Id.
>>> +
>>> +		The files are read only.
>>> +
>>> +What:           /sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/phy_reset
>>> +Date:           May 2022
>>> +KernelVersion:  5.19
>>> +Contact:        Vadim Pasternak <vadimpmellanox.com>
>>> +Description:    This file allows to reset PHY 88E1548 when attribute is set 0
>>> +                due to some abnormal PHY behavior.
>>> +                Expected behavior:
>>> +                When phy_reset is written 1, all PHY 88E1548 are released
>>> +                from the reset state, when 0 - are hold in reset state.
>>> +
>>> +                The files are read/write.
>>> +
>>> +What:           /sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/mac_reset
>>> +Date:           May 2022
>>> +KernelVersion:  5.19
>>> +Contact:        Vadim Pasternak <vadimpmellanox.com>
>>> +Description:    This file allows to reset ASIC MT52132 when attribute is set
>> 0
>>> +                due to some abnormal ASIC behavior.
>>> +                Expected behavior:
>>> +                When mac_reset is written 1, the ASIC MT52132 is released
>>> +                from the reset state, when 0 - is hold in reset state.
>>> +
>>> +                The files are read/write.
>>> +
>>> +What:           /sys/devices/platform/mlxplat/mlxreg-
>> io/hwmon/hwmon*/qsfp_pwr_good
>>> +Date:           May 2022
>>> +KernelVersion:  5.19
>>> +Contact:        Vadim Pasternak <vadimpmellanox.com>
>>> +Description:    This file shows QSFP ports power status. The value is set to
>> 0
>>> +                when one of any QSFP ports is plugged. The value is set to 1
>> when
>>> +                there are no any QSFP ports are plugged.
>>> +                The possible values are:
>>> +                0 - Power good, 1 - Not power good.
>>> +
>>> +                The files are read only.
>

Michael Shych May 11, 2022, 3:35 p.m. UTC | #4

> -----Original Message-----
> From: Hans de Goede <[e-mail]>
> Sent: Wednesday, May 11, 2022 6:15 PM
> To: Michael Shych <[e-mail]>
> Cc: [e-mail]; Vadim Pasternak
> <[e-mail]>
> Subject: Re: [PATCH v1 3/3] Documentation/ABI: Add new attributes for
> mlxreg-io sysfs interfaces
> 
> Hi Michael,
> 
> On 5/11/22 16:58, Michael Shych wrote:
> > Hi Hans,
> >
> > I'm sorry for this form of patchset.
> > It definitely was tested by checkpatch but we have several rounds of
> > Internal reviews and looks that on some step patches have these errors.
> > Should I resubmit all series?
> 
> No need to resubmit, I've already fixed this up manually
> so as to have this merged in time for the 5.19 cycle.

Thx and sorry once again for submitted pathset form.

> 
> Please double-check that my fixed-up version is what you
> intended:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-
> x86.git/commit/?h=review-
> hans&id=ae6e1d73ceffc61cb97343dd4fa61c74a3c75682

Ack.

> 
> Regards,
> 
> Hans
> 
> 

Thank you,
    Michael.


> 
> 
> 
> >> -----Original Message-----
> >> From: Hans de Goede <[e-mail]>
> >> Sent: Wednesday, May 11, 2022 5:41 PM
> >> To: Michael Shych <[e-mail]>
> >> Cc: [e-mail]; Vadim Pasternak
> >> <[e-mail]>
> >> Subject: Re: [PATCH v1 3/3] Documentation/ABI: Add new attributes for
> >> mlxreg-io sysfs interfaces
> >>
> >> Hi,
> >>
> >> On 4/30/22 13:58, [e-mail] wrote:
> >>> From: Michael Shych <[e-mail]>
> >>>
> >>> Add documentation for the new attributes:
> >>> - "phy_reset" - Reset PHY.
> >>> - "mac_reset" - Reset MAC.
> >>> - "qsfp_pwr_good" - The power status of QSFP ports.
> >>>
> >>> Signed-off-by: Michael Shych <[e-mail]>
> >>> Reviewed-by: Vadim Pasternak <[e-mail]>
> >>
> >> Something has gone seriously wrong with preparing this
> >> patch. It seems that the new intended contents of
> >> Documentation/ABI/stable/sysfs-driver-mlxreg-io
> >> was written over drivers/platform/mellanox/nvsw-sn2201.c
> >> and then the result was commited and worse submitted
> >> upstream.
> >>
> >> Next time please do a dummy run before submitting
> >> patches upstream like this:
> >>
> >> 1. Run "git format patch HEAD~3" (3 because this time there were 3
> patches)
> >> 2. Run "scripts/checkpatch.pl 00*" and check for issues
> >> 3. Run "$EDITOR 00*" and manually check if things are as they should be.
> >>
> >> I've fixed this up now by taking the last 3 documentation
> >> entries from drivers/platform/mellanox/nvsw-sn2201.c after
> >> applying this patch (which rewrites it into a documentation
> >> file) and adding those at the end of:
> >> Documentation/ABI/stable/sysfs-driver-mlxreg-io
> >>
> >> I also had to manually fix the indentation of the 3 new
> >> entries using spaces everywhere where as the existing
> >> file uses tabs everywhere.
> >>
> >> Once I'm done running some local tests I will push this to:
> >>
> >> https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-
> >> x86.git/log/?h=review-hans
> >>
> >> Please double check (once pushed) that the documentation
> >> commit is as it should be.
> >>
> >> Regards,
> >>
> >> Hans
> >>
> >>
> >>
> >>
> >>
> >>> ---
> >>>  drivers/platform/mellanox/nvsw-sn2201.c | 1766 +++++++++---------------
> ---
> >> ----
> >>>  1 file changed, 505 insertions(+), 1261 deletions(-)
> >>>
> >>> diff --git a/drivers/platform/mellanox/nvsw-sn2201.c
> >> b/drivers/platform/mellanox/nvsw-sn2201.c
> >>> index e1ebd871da04..9e397c54dd85 100644
> >>> --- a/drivers/platform/mellanox/nvsw-sn2201.c
> >>> +++ b/drivers/platform/mellanox/nvsw-sn2201.c
> >>> @@ -1,1261 +1,505 @@
> >>> -// SPDX-License-Identifier: GPL-2.0+
> >>> -/*
> >>> - * Nvidia sn2201 driver
> >>> - *
> >>> - * Copyright (C) 2022 Nvidia Technologies Ltd.
> >>> - */
> >>> -
> >>> -#include <linux/device.h>
> >>> -#include <linux/i2c.h>
> >>> -#include <linux/interrupt.h>
> >>> -#include <linux/irq.h>
> >>> -#include <linux/gpio.h>
> >>> -#include <linux/module.h>
> >>> -#include <linux/platform_data/mlxcpld.h>
> >>> -#include <linux/platform_data/mlxreg.h>
> >>> -#include <linux/platform_device.h>
> >>> -#include <linux/regmap.h>
> >>> -
> >>> -/* SN2201 CPLD register offset. */
> >>> -#define NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR          0x2000
> >>> -#define NVSW_SN2201_CPLD_LPC_IO_RANGE               0x100
> >>> -#define NVSW_SN2201_HW_VER_ID_OFFSET                0x00
> >>> -#define NVSW_SN2201_BOARD_ID_OFFSET                 0x01
> >>> -#define NVSW_SN2201_CPLD_VER_OFFSET                 0x02
> >>> -#define NVSW_SN2201_CPLD_MVER_OFFSET                0x03
> >>> -#define NVSW_SN2201_CPLD_ID_OFFSET                  0x04
> >>> -#define NVSW_SN2201_CPLD_PN_OFFSET                  0x05
> >>> -#define NVSW_SN2201_CPLD_PN1_OFFSET                 0x06
> >>> -#define NVSW_SN2201_PSU_CTRL_OFFSET                 0x0a
> >>> -#define NVSW_SN2201_QSFP28_STATUS_OFFSET            0x0b
> >>> -#define NVSW_SN2201_QSFP28_INT_STATUS_OFFSET        0x0c
> >>> -#define NVSW_SN2201_QSFP28_LP_STATUS_OFFSET         0x0d
> >>> -#define NVSW_SN2201_QSFP28_RST_STATUS_OFFSET        0x0e
> >>> -#define NVSW_SN2201_SYS_STATUS_OFFSET               0x0f
> >>> -#define NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET       0x10
> >>> -#define NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET       0x12
> >>> -#define NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET       0x13
> >>> -#define NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET   0x14
> >>> -#define NVSW_SN2201_SYS_RST_STATUS_OFFSET           0x15
> >>> -#define NVSW_SN2201_SYS_INT_STATUS_OFFSET           0x21
> >>> -#define NVSW_SN2201_SYS_INT_MASK_OFFSET             0x22
> >>> -#define NVSW_SN2201_ASIC_STATUS_OFFSET              0x24
> >>> -#define NVSW_SN2201_ASIC_EVENT_OFFSET               0x25
> >>> -#define NVSW_SN2201_ASIC_MAKS_OFFSET                0x26
> >>> -#define NVSW_SN2201_THML_STATUS_OFFSET              0x27
> >>> -#define NVSW_SN2201_THML_EVENT_OFFSET               0x28
> >>> -#define NVSW_SN2201_THML_MASK_OFFSET                0x29
> >>> -#define NVSW_SN2201_PS_ALT_STATUS_OFFSET            0x2a
> >>> -#define NVSW_SN2201_PS_ALT_EVENT_OFFSET             0x2b
> >>> -#define NVSW_SN2201_PS_ALT_MASK_OFFSET              0x2c
> >>> -#define NVSW_SN2201_PS_PRSNT_STATUS_OFFSET          0x30
> >>> -#define NVSW_SN2201_PS_PRSNT_EVENT_OFFSET           0x31
> >>> -#define NVSW_SN2201_PS_PRSNT_MASK_OFFSET            0x32
> >>> -#define NVSW_SN2201_PS_DC_OK_STATUS_OFFSET          0x33
> >>> -#define NVSW_SN2201_PS_DC_OK_EVENT_OFFSET           0x34
> >>> -#define NVSW_SN2201_PS_DC_OK_MASK_OFFSET            0x35
> >>> -#define NVSW_SN2201_RST_CAUSE1_OFFSET               0x36
> >>> -#define NVSW_SN2201_RST_CAUSE2_OFFSET               0x37
> >>> -#define NVSW_SN2201_RST_SW_CTRL_OFFSET              0x38
> >>> -#define NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET         0x3a
> >>> -#define NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET          0x3b
> >>> -#define NVSW_SN2201_FAN_PRSNT_MASK_OFFSET           0x3c
> >>> -#define NVSW_SN2201_WD_TMR_OFFSET_LSB               0x40
> >>> -#define NVSW_SN2201_WD_TMR_OFFSET_MSB               0x41
> >>> -#define NVSW_SN2201_WD_ACT_OFFSET                   0x42
> >>> -#define NVSW_SN2201_FAN_LED1_CTRL_OFFSET            0x50
> >>> -#define NVSW_SN2201_FAN_LED2_CTRL_OFFSET            0x51
> >>> -#define NVSW_SN2201_REG_MAX                         0x52
> >>> -
> >>> -/* Number of physical I2C busses. */
> >>> -#define NVSW_SN2201_PHY_I2C_BUS_NUM		2
> >>> -/* Number of main mux channels. */
> >>> -#define NVSW_SN2201_MAIN_MUX_CHNL_NUM		8
> >>> -
> >>> -#define NVSW_SN2201_MAIN_NR			0
> >>> -#define NVSW_SN2201_MAIN_MUX_NR			1
> >>> -#define NVSW_SN2201_MAIN_MUX_DEFER_NR
> >> 	(NVSW_SN2201_PHY_I2C_BUS_NUM + \
> >>> -
> >> NVSW_SN2201_MAIN_MUX_CHNL_NUM - 1)
> >>> -
> >>> -#define NVSW_SN2201_MAIN_MUX_CH0_NR
> >> 	NVSW_SN2201_PHY_I2C_BUS_NUM
> >>> -#define NVSW_SN2201_MAIN_MUX_CH1_NR
> >> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 1)
> >>> -#define NVSW_SN2201_MAIN_MUX_CH2_NR
> >> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 2)
> >>> -#define NVSW_SN2201_MAIN_MUX_CH3_NR
> >> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 3)
> >>> -#define NVSW_SN2201_MAIN_MUX_CH5_NR
> >> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 5)
> >>> -#define NVSW_SN2201_MAIN_MUX_CH6_NR
> >> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 6)
> >>> -#define NVSW_SN2201_MAIN_MUX_CH7_NR
> >> 	(NVSW_SN2201_MAIN_MUX_CH0_NR + 7)
> >>> -
> >>> -#define NVSW_SN2201_CPLD_NR
> >> 	NVSW_SN2201_MAIN_MUX_CH0_NR
> >>> -#define NVSW_SN2201_NR_NONE		-1
> >>> -
> >>> -/* Masks for aggregation, PSU presence and power, ASIC events
> >>> - * in CPLD related registers.
> >>> - */
> >>> -#define NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF	0xe0
> >>> -#define NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF	0x04
> >>> -#define NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF	0x02
> >>> -#define NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF	0x10
> >>> -#define NVSW_SN2201_CPLD_AGGR_MASK_DEF      \
> >>> -	(NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF \
> >>> -	| NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF \
> >>> -	| NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF \
> >>> -	| NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF)
> >>> -
> >>> -#define NVSW_SN2201_CPLD_ASIC_MASK		GENMASK(3, 1)
> >>> -#define NVSW_SN2201_CPLD_PSU_MASK		GENMASK(1, 0)
> >>> -#define NVSW_SN2201_CPLD_PWR_MASK		GENMASK(1, 0)
> >>> -#define NVSW_SN2201_CPLD_FAN_MASK		GENMASK(3, 0)
> >>> -
> >>> -#define NVSW_SN2201_CPLD_SYSIRQ			26
> >>> -#define NVSW_SN2201_LPC_SYSIRQ			28
> >>> -#define NVSW_SN2201_CPLD_I2CADDR		0x41
> >>> -
> >>> -#define NVSW_SN2201_WD_DFLT_TIMEOUT		600
> >>> -
> >>> -/* nvsw_sn2201 - device private data
> >>> - * @dev: platform device;
> >>> - * @io_data: register access platform data;
> >>> - * @led_data: LED platform data;
> >>> - * @hotplug_data: hotplug platform data;
> >>> - * @i2c_data: I2C controller platform data;
> >>> - * @led: LED device;
> >>> - * @io_regs: register access device;
> >>> - * @pdev_hotplug: hotplug device;
> >>> - * @sn2201_devs: I2C devices for sn2201 devices;
> >>> - * @sn2201_devs_num: number of I2C devices for sn2201 device;
> >>> - * @main_mux_devs: I2C devices for main mux;
> >>> - * @main_mux_devs_num: number of I2C devices for main mux;
> >>> - * @cpld_devs: I2C devices for cpld;
> >>> - * @cpld_devs_num: number of I2C devices for cpld;
> >>> - * @main_mux_deferred_nr: I2C adapter number must be exist prior
> >> creating devices execution;
> >>> - */
> >>> -struct nvsw_sn2201 {
> >>> -	struct device *dev;
> >>> -	struct mlxreg_core_platform_data *io_data;
> >>> -	struct mlxreg_core_platform_data *led_data;
> >>> -	struct mlxreg_core_platform_data *wd_data;
> >>> -	struct mlxreg_core_hotplug_platform_data *hotplug_data;
> >>> -	struct mlxreg_core_hotplug_platform_data *i2c_data;
> >>> -	struct platform_device *led;
> >>> -	struct platform_device *wd;
> >>> -	struct platform_device *io_regs;
> >>> -	struct platform_device *pdev_hotplug;
> >>> -	struct platform_device *pdev_i2c;
> >>> -	struct mlxreg_hotplug_device *sn2201_devs;
> >>> -	int sn2201_devs_num;
> >>> -	struct mlxreg_hotplug_device *main_mux_devs;
> >>> -	int main_mux_devs_num;
> >>> -	struct mlxreg_hotplug_device *cpld_devs;
> >>> -	int cpld_devs_num;
> >>> -	int main_mux_deferred_nr;
> >>> -};
> >>> -
> >>> -static bool nvsw_sn2201_writeable_reg(struct device *dev, unsigned int
> >> reg)
> >>> -{
> >>> -	switch (reg) {
> >>> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> >>> -	case NVSW_SN2201_THML_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_THML_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> >>> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> >>> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> >>> -	case NVSW_SN2201_WD_ACT_OFFSET:
> >>> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> >>> -		return true;
> >>> -	}
> >>> -	return false;
> >>> -}
> >>> -
> >>> -static bool nvsw_sn2201_readable_reg(struct device *dev, unsigned int
> >> reg)
> >>> -{
> >>> -	switch (reg) {
> >>> -	case NVSW_SN2201_HW_VER_ID_OFFSET:
> >>> -	case NVSW_SN2201_BOARD_ID_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_VER_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_MVER_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_ID_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_PN_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_PN1_OFFSET:
> >>> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
> >>> -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
> >>> -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> >>> -	case NVSW_SN2201_THML_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_THML_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_THML_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> >>> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> >>> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> >>> -	case NVSW_SN2201_WD_ACT_OFFSET:
> >>> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> >>> -		return true;
> >>> -	}
> >>> -	return false;
> >>> -}
> >>> -
> >>> -static bool nvsw_sn2201_volatile_reg(struct device *dev, unsigned int
> reg)
> >>> -{
> >>> -	switch (reg) {
> >>> -	case NVSW_SN2201_HW_VER_ID_OFFSET:
> >>> -	case NVSW_SN2201_BOARD_ID_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_VER_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_MVER_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_ID_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_PN_OFFSET:
> >>> -	case NVSW_SN2201_CPLD_PN1_OFFSET:
> >>> -	case NVSW_SN2201_PSU_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_RST_CAUSE1_OFFSET:
> >>> -	case NVSW_SN2201_RST_CAUSE2_OFFSET:
> >>> -	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_ASIC_MAKS_OFFSET:
> >>> -	case NVSW_SN2201_THML_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_THML_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_THML_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
> >>> -	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
> >>> -	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
> >>> -	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
> >>> -	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
> >>> -	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
> >>> -	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
> >>> -		return true;
> >>> -	}
> >>> -	return false;
> >>> -}
> >>> -
> >>> -static const struct reg_default nvsw_sn2201_regmap_default[] = {
> >>> -	{ NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET, 0x00 },
> >>> -	{ NVSW_SN2201_WD_ACT_OFFSET, 0x00 },
> >>> -};
> >>> -
> >>> -/* Configuration for the register map of a device with 1 bytes address
> >> space. */
> >>> -static const struct regmap_config nvsw_sn2201_regmap_conf = {
> >>> -	.reg_bits = 8,
> >>> -	.val_bits = 8,
> >>> -	.max_register = NVSW_SN2201_REG_MAX,
> >>> -	.cache_type = REGCACHE_FLAT,
> >>> -	.writeable_reg = nvsw_sn2201_writeable_reg,
> >>> -	.readable_reg = nvsw_sn2201_readable_reg,
> >>> -	.volatile_reg = nvsw_sn2201_volatile_reg,
> >>> -	.reg_defaults = nvsw_sn2201_regmap_default,
> >>> -	.num_reg_defaults = ARRAY_SIZE(nvsw_sn2201_regmap_default),
> >>> -};
> >>> -
> >>> -/* Regions for LPC I2C controller and LPC base register space. */
> >>> -static const struct resource nvsw_sn2201_lpc_io_resources[] = {
> >>> -	[0] =
> >> DEFINE_RES_NAMED(NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR,
> >>> -			       NVSW_SN2201_CPLD_LPC_IO_RANGE,
> >>> -			       "mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
> >>> -};
> >>> -
> >>> -static struct resource nvsw_sn2201_cpld_res[] = {
> >>> -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_CPLD_SYSIRQ,
> >> "mlxreg-hotplug"),
> >>> -};
> >>> -
> >>> -static struct resource nvsw_sn2201_lpc_res[] = {
> >>> -	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_LPC_SYSIRQ, "i2c-
> >> mlxcpld"),
> >>> -};
> >>> -
> >>> -/* SN2201 I2C platform data. */
> >>> -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_i2c_data = {
> >>> -	.irq = NVSW_SN2201_CPLD_SYSIRQ,
> >>> -};
> >>> -
> >>> -/* SN2201 CPLD device. */
> >>> -static struct i2c_board_info nvsw_sn2201_cpld_devices[] = {
> >>> -	{
> >>> -		I2C_BOARD_INFO("nvsw-sn2201", 0x41),
> >>> -	},
> >>> -};
> >>> -
> >>> -/* SN2201 CPLD board info. */
> >>> -static struct mlxreg_hotplug_device nvsw_sn2201_cpld_brdinfo[] = {
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_cpld_devices[0],
> >>> -		.nr = NVSW_SN2201_CPLD_NR,
> >>> -	},
> >>> -};
> >>> -
> >>> -/* SN2201 main mux device. */
> >>> -static struct i2c_board_info nvsw_sn2201_main_mux_devices[] = {
> >>> -	{
> >>> -		I2C_BOARD_INFO("pca9548", 0x70),
> >>> -	},
> >>> -};
> >>> -
> >>> -/* SN2201 main mux board info. */
> >>> -static struct mlxreg_hotplug_device nvsw_sn2201_main_mux_brdinfo[]
> = {
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_main_mux_devices[0],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_NR,
> >>> -	},
> >>> -};
> >>> -
> >>> -/* SN2201 power devices. */
> >>> -static struct i2c_board_info nvsw_sn2201_pwr_devices[] = {
> >>> -	{
> >>> -		I2C_BOARD_INFO("pmbus", 0x58),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("pmbus", 0x58),
> >>> -	},
> >>> -};
> >>> -
> >>> -/* SN2201 fan devices. */
> >>> -static struct i2c_board_info nvsw_sn2201_fan_devices[] = {
> >>> -	{
> >>> -		I2C_BOARD_INFO("24c02", 0x50),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("24c02", 0x51),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("24c02", 0x52),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("24c02", 0x53),
> >>> -	},
> >>> -};
> >>> -
> >>> -/* SN2201 hotplug default data. */
> >>> -static struct mlxreg_core_data nvsw_sn2201_psu_items_data[] = {
> >>> -	{
> >>> -		.label = "psu1",
> >>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> >>> -		.mask = BIT(0),
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -	{
> >>> -		.label = "psu2",
> >>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> >>> -		.mask = BIT(1),
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -};
> >>> -
> >>> -static struct mlxreg_core_data nvsw_sn2201_pwr_items_data[] = {
> >>> -	{
> >>> -		.label = "pwr1",
> >>> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> >>> -		.mask = BIT(0),
> >>> -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[0],
> >>> -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH1_NR,
> >>> -	},
> >>> -	{
> >>> -		.label = "pwr2",
> >>> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> >>> -		.mask = BIT(1),
> >>> -		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[1],
> >>> -		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH2_NR,
> >>> -	},
> >>> -};
> >>> -
> >>> -static struct mlxreg_core_data nvsw_sn2201_fan_items_data[] = {
> >>> -	{
> >>> -		.label = "fan1",
> >>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> >>> -		.mask = BIT(0),
> >>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[0],
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -	{
> >>> -		.label = "fan2",
> >>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> >>> -		.mask = BIT(1),
> >>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[1],
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -	{
> >>> -		.label = "fan3",
> >>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> >>> -		.mask = BIT(2),
> >>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[2],
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -	{
> >>> -		.label = "fan4",
> >>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> >>> -		.mask = BIT(3),
> >>> -		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[3],
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -};
> >>> -
> >>> -static struct mlxreg_core_data nvsw_sn2201_sys_items_data[] = {
> >>> -	{
> >>> -		.label = "nic_smb_alert",
> >>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> >>> -		.mask = BIT(1),
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -	{
> >>> -		.label = "cpu_sd",
> >>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> >>> -		.mask = BIT(2),
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -	{
> >>> -		.label = "mac_health",
> >>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> >>> -		.mask = BIT(3),
> >>> -		.hpdev.nr = NVSW_SN2201_NR_NONE,
> >>> -	},
> >>> -};
> >>> -
> >>> -static struct mlxreg_core_item nvsw_sn2201_items[] = {
> >>> -	{
> >>> -		.data = nvsw_sn2201_psu_items_data,
> >>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF,
> >>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> >>> -		.mask = NVSW_SN2201_CPLD_PSU_MASK,
> >>> -		.count = ARRAY_SIZE(nvsw_sn2201_psu_items_data),
> >>> -		.inversed = 1,
> >>> -		.health = false,
> >>> -	},
> >>> -	{
> >>> -		.data = nvsw_sn2201_pwr_items_data,
> >>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF,
> >>> -		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
> >>> -		.mask = NVSW_SN2201_CPLD_PWR_MASK,
> >>> -		.count = ARRAY_SIZE(nvsw_sn2201_pwr_items_data),
> >>> -		.inversed = 0,
> >>> -		.health = false,
> >>> -	},
> >>> -	{
> >>> -		.data = nvsw_sn2201_fan_items_data,
> >>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF,
> >>> -		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
> >>> -		.mask = NVSW_SN2201_CPLD_FAN_MASK,
> >>> -		.count = ARRAY_SIZE(nvsw_sn2201_fan_items_data),
> >>> -		.inversed = 1,
> >>> -		.health = false,
> >>> -	},
> >>> -	{
> >>> -		.data = nvsw_sn2201_sys_items_data,
> >>> -		.aggr_mask = NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF,
> >>> -		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
> >>> -		.mask = NVSW_SN2201_CPLD_ASIC_MASK,
> >>> -		.count = ARRAY_SIZE(nvsw_sn2201_sys_items_data),
> >>> -		.inversed = 1,
> >>> -		.health = false,
> >>> -	},
> >>> -};
> >>> -
> >>> -static
> >>> -struct mlxreg_core_hotplug_platform_data nvsw_sn2201_hotplug = {
> >>> -	.items = nvsw_sn2201_items,
> >>> -	.counter = ARRAY_SIZE(nvsw_sn2201_items),
> >>> -	.cell = NVSW_SN2201_SYS_INT_STATUS_OFFSET,
> >>> -	.mask = NVSW_SN2201_CPLD_AGGR_MASK_DEF,
> >>> -};
> >>> -
> >>> -/* SN2201 static devices. */
> >>> -static struct i2c_board_info nvsw_sn2201_static_devices[] = {
> >>> -	{
> >>> -		I2C_BOARD_INFO("24c02", 0x57),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("lm75", 0x4b),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("24c64", 0x56),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("ads1015", 0x49),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("pca9546", 0x71),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("emc2305", 0x4d),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("lm75", 0x49),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("pca9555", 0x27),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("powr1014", 0x37),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("lm75", 0x4f),
> >>> -	},
> >>> -	{
> >>> -		I2C_BOARD_INFO("pmbus", 0x40),
> >>> -	},
> >>> -};
> >>> -
> >>> -/* SN2201 default static board info. */
> >>> -static struct mlxreg_hotplug_device nvsw_sn2201_static_brdinfo[] = {
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[0],
> >>> -		.nr = NVSW_SN2201_MAIN_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[1],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[2],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[3],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[4],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH3_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[5],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[6],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[7],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[8],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[9],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
> >>> -	},
> >>> -	{
> >>> -		.brdinfo = &nvsw_sn2201_static_devices[10],
> >>> -		.nr = NVSW_SN2201_MAIN_MUX_CH7_NR,
> >>> -	},
> >>> -};
> >>> -
> >>> -/* LED default data. */
> >>> -static struct mlxreg_core_data nvsw_sn2201_led_data[] = {
> >>> -	{
> >>> -		.label = "status:green",
> >>> -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "status:orange",
> >>> -		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "psu:green",
> >>> -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "psu:orange",
> >>> -		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "uid:blue",
> >>> -		.reg = NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan1:green",
> >>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan1:orange",
> >>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan2:green",
> >>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> >>> -		.mask = GENMASK(3, 0),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan2:orange",
> >>> -		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
> >>> -		.mask = GENMASK(3, 0),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan3:green",
> >>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan3:orange",
> >>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 4),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan4:green",
> >>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> >>> -		.mask = GENMASK(3, 0),
> >>> -	},
> >>> -	{
> >>> -		.label = "fan4:orange",
> >>> -		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
> >>> -		.mask = GENMASK(3, 0),
> >>> -	},
> >>> -};
> >>> -
> >>> -static struct mlxreg_core_platform_data nvsw_sn2201_led = {
> >>> -	.data = nvsw_sn2201_led_data,
> >>> -	.counter = ARRAY_SIZE(nvsw_sn2201_led_data),
> >>> -};
> >>> -
> >>> -/* Default register access data. */
> >>> -static struct mlxreg_core_data nvsw_sn2201_io_data[] = {
> >>> -	{
> >>> -		.label = "cpld1_version",
> >>> -		.reg = NVSW_SN2201_CPLD_VER_OFFSET,
> >>> -		.bit = GENMASK(7, 0),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "cpld1_version_min",
> >>> -		.reg = NVSW_SN2201_CPLD_MVER_OFFSET,
> >>> -		.bit = GENMASK(7, 0),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "cpld1_pn",
> >>> -		.reg = NVSW_SN2201_CPLD_PN_OFFSET,
> >>> -		.bit = GENMASK(15, 0),
> >>> -		.mode = 0444,
> >>> -		.regnum = 2,
> >>> -	},
> >>> -	{
> >>> -		.label = "psu1_on",
> >>> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(0),
> >>> -		.mode = 0644,
> >>> -	},
> >>> -	{
> >>> -		.label = "psu2_on",
> >>> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(1),
> >>> -		.mode = 0644,
> >>> -	},
> >>> -	{
> >>> -		.label = "pwr_cycle",
> >>> -		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(2),
> >>> -		.mode = 0644,
> >>> -	},
> >>> -	{
> >>> -		.label = "asic_health",
> >>> -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
> >>> -		.mask = GENMASK(4, 3),
> >>> -		.bit = 4,
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "qsfp_pwr_good",
> >>> -		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(0),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "phy_reset",
> >>> -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(3),
> >>> -		.mode = 0644,
> >>> -	},
> >>> -	{
> >>> -		.label = "mac_reset",
> >>> -		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(2),
> >>> -		.mode = 0644,
> >>> -	},
> >>> -	{
> >>> -		.label = "pwr_down",
> >>> -		.reg = NVSW_SN2201_RST_SW_CTRL_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(0),
> >>> -		.mode = 0644,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_long_pb",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(0),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_short_pb",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(1),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_aux_pwr_or_fu",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(2),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_swb_dc_dc_pwr_fail",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(3),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_sw_reset",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(4),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_fw_reset",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(5),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_swb_wd",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(6),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_asic_thermal",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(7),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_system",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(1),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_sw_pwr_off",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(2),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_cpu_pwr_fail_thermal",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(4),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_reload_bios",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(5),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset_ac_pwr_fail",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(6),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "psu1",
> >>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(0),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -	{
> >>> -		.label = "psu2",
> >>> -		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(1),
> >>> -		.mode = 0444,
> >>> -	},
> >>> -};
> >>> -
> >>> -static struct mlxreg_core_platform_data nvsw_sn2201_regs_io = {
> >>> -	.data = nvsw_sn2201_io_data,
> >>> -	.counter = ARRAY_SIZE(nvsw_sn2201_io_data),
> >>> -};
> >>> -
> >>> -/* Default watchdog data. */
> >>> -static struct mlxreg_core_data nvsw_sn2201_wd_data[] = {
> >>> -	{
> >>> -		.label = "action",
> >>> -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
> >>> -		.mask = GENMASK(7, 1),
> >>> -		.bit = 0,
> >>> -	},
> >>> -	{
> >>> -		.label = "timeout",
> >>> -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
> >>> -		.mask = 0,
> >>> -		.health_cntr = NVSW_SN2201_WD_DFLT_TIMEOUT,
> >>> -	},
> >>> -	{
> >>> -		.label = "timeleft",
> >>> -		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
> >>> -		.mask = 0,
> >>> -	},
> >>> -	{
> >>> -		.label = "ping",
> >>> -		.reg = NVSW_SN2201_WD_ACT_OFFSET,
> >>> -		.mask = GENMASK(7, 1),
> >>> -		.bit = 0,
> >>> -	},
> >>> -	{
> >>> -		.label = "reset",
> >>> -		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
> >>> -		.mask = GENMASK(7, 0) & ~BIT(6),
> >>> -		.bit = 6,
> >>> -	},
> >>> -};
> >>> -
> >>> -static struct mlxreg_core_platform_data nvsw_sn2201_wd = {
> >>> -	.data = nvsw_sn2201_wd_data,
> >>> -	.counter = ARRAY_SIZE(nvsw_sn2201_wd_data),
> >>> -	.version = MLX_WDT_TYPE3,
> >>> -	.identity = "mlx-wdt-main",
> >>> -};
> >>> -
> >>> -static int
> >>> -nvsw_sn2201_create_static_devices(struct nvsw_sn2201 *nvsw_sn2201,
> >>> -				  struct mlxreg_hotplug_device *devs,
> >>> -				  int size)
> >>> -{
> >>> -	struct mlxreg_hotplug_device *dev = devs;
> >>> -	int i;
> >>> -
> >>> -	/* Create I2C static devices. */
> >>> -	for (i = 0; i < size; i++, dev++) {
> >>> -		dev->client = i2c_new_client_device(dev->adapter, dev-
> >>> brdinfo);
> >>> -		if (IS_ERR(dev->client)) {
> >>> -			dev_err(nvsw_sn2201->dev, "Failed to create client
> >> %s at bus %d at addr 0x%02x\n",
> >>> -				dev->brdinfo->type,
> >>> -				dev->nr, dev->brdinfo->addr);
> >>> -
> >>> -			dev->adapter = NULL;
> >>> -			goto fail_create_static_devices;
> >>> -		}
> >>> -	}
> >>> -
> >>> -	return 0;
> >>> -
> >>> -fail_create_static_devices:
> >>> -	while (--i >= 0) {
> >>> -		dev = devs + i;
> >>> -		i2c_unregister_device(dev->client);
> >>> -		dev->client = NULL;
> >>> -		dev->adapter = NULL;
> >>> -	}
> >>> -	return IS_ERR(dev->client);
> >>> -}
> >>> -
> >>> -static void nvsw_sn2201_destroy_static_devices(struct nvsw_sn2201
> >> *nvsw_sn2201,
> >>> -					       struct mlxreg_hotplug_device
> >> *devs, int size)
> >>> -{
> >>> -	struct mlxreg_hotplug_device *dev = devs;
> >>> -	int i;
> >>> -
> >>> -	/* Destroy static I2C device for SN2201 static devices. */
> >>> -	for (i = 0; i < size; i++, dev++) {
> >>> -		if (dev->client) {
> >>> -			i2c_unregister_device(dev->client);
> >>> -			dev->client = NULL;
> >>> -			i2c_put_adapter(dev->adapter);
> >>> -			dev->adapter = NULL;
> >>> -		}
> >>> -	}
> >>> -}
> >>> -
> >>> -static int nvsw_sn2201_config_post_init(struct nvsw_sn2201
> >> *nvsw_sn2201)
> >>> -{
> >>> -	struct mlxreg_hotplug_device *sn2201_dev;
> >>> -	struct i2c_adapter *adap;
> >>> -	struct device *dev;
> >>> -	int i, j, err;
> >>> -
> >>> -	dev = nvsw_sn2201->dev;
> >>> -	adap = i2c_get_adapter(nvsw_sn2201->main_mux_deferred_nr);
> >>> -	if (!adap) {
> >>> -		dev_err(dev, "Failed to get adapter for bus %d\n",
> >>> -			nvsw_sn2201->main_mux_deferred_nr);
> >>> -		return -ENODEV;
> >>> -	}
> >>> -	i2c_put_adapter(adap);
> >>> -
> >>> -	/* Update board info. */
> >>> -	sn2201_dev = nvsw_sn2201->sn2201_devs;
> >>> -	for (i = 0, j = 0; i < nvsw_sn2201->sn2201_devs_num; i++,
> >> sn2201_dev++) {
> >>> -		sn2201_dev->adapter = i2c_get_adapter(sn2201_dev->nr);
> >>> -		if (!sn2201_dev->adapter)
> >>> -			return -ENODEV;
> >>> -		i2c_put_adapter(sn2201_dev->adapter);
> >>> -	}
> >>> -
> >>> -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201,
> >> nvsw_sn2201->sn2201_devs,
> >>> -						nvsw_sn2201-
> >>> sn2201_devs_num);
> >>> -	if (err)
> >>> -		dev_err(dev, "Failed to create static devices\n");
> >>> -
> >>> -	return err;
> >>> -}
> >>> -
> >>> -static int nvsw_sn2201_config_init(struct nvsw_sn2201 *nvsw_sn2201,
> >> void *regmap)
> >>> -{
> >>> -	struct device *dev = nvsw_sn2201->dev;
> >>> -	int err;
> >>> -
> >>> -	nvsw_sn2201->io_data = &nvsw_sn2201_regs_io;
> >>> -	nvsw_sn2201->led_data = &nvsw_sn2201_led;
> >>> -	nvsw_sn2201->wd_data = &nvsw_sn2201_wd;
> >>> -	nvsw_sn2201->hotplug_data = &nvsw_sn2201_hotplug;
> >>> -
> >>> -	/* Register IO access driver. */
> >>> -	if (nvsw_sn2201->io_data) {
> >>> -		nvsw_sn2201->io_data->regmap = regmap;
> >>> -		nvsw_sn2201->io_regs =
> >>> -		platform_device_register_resndata(dev, "mlxreg-io",
> >> PLATFORM_DEVID_NONE, NULL, 0,
> >>> -						  nvsw_sn2201->io_data,
> >>> -						  sizeof(*nvsw_sn2201-
> >>> io_data));
> >>> -		if (IS_ERR(nvsw_sn2201->io_regs)) {
> >>> -			err = PTR_ERR(nvsw_sn2201->io_regs);
> >>> -			goto fail_register_io;
> >>> -		}
> >>> -	}
> >>> -
> >>> -	/* Register LED driver. */
> >>> -	if (nvsw_sn2201->led_data) {
> >>> -		nvsw_sn2201->led_data->regmap = regmap;
> >>> -		nvsw_sn2201->led =
> >>> -		platform_device_register_resndata(dev, "leds-mlxreg",
> >> PLATFORM_DEVID_NONE, NULL, 0,
> >>> -						  nvsw_sn2201->led_data,
> >>> -						  sizeof(*nvsw_sn2201-
> >>> led_data));
> >>> -		if (IS_ERR(nvsw_sn2201->led)) {
> >>> -			err = PTR_ERR(nvsw_sn2201->led);
> >>> -			goto fail_register_led;
> >>> -		}
> >>> -	}
> >>> -
> >>> -	/* Register WD driver. */
> >>> -	if (nvsw_sn2201->wd_data) {
> >>> -		nvsw_sn2201->wd_data->regmap = regmap;
> >>> -		nvsw_sn2201->wd =
> >>> -		platform_device_register_resndata(dev, "mlx-wdt",
> >> PLATFORM_DEVID_NONE, NULL, 0,
> >>> -						  nvsw_sn2201->wd_data,
> >>> -						  sizeof(*nvsw_sn2201-
> >>> wd_data));
> >>> -		if (IS_ERR(nvsw_sn2201->wd)) {
> >>> -			err = PTR_ERR(nvsw_sn2201->wd);
> >>> -			goto fail_register_wd;
> >>> -		}
> >>> -	}
> >>> -
> >>> -	/* Register hotplug driver. */
> >>> -	if (nvsw_sn2201->hotplug_data) {
> >>> -		nvsw_sn2201->hotplug_data->regmap = regmap;
> >>> -		nvsw_sn2201->pdev_hotplug =
> >>> -		platform_device_register_resndata(dev, "mlxreg-hotplug",
> >> PLATFORM_DEVID_NONE,
> >>> -						  nvsw_sn2201_cpld_res,
> >>> -
> >> ARRAY_SIZE(nvsw_sn2201_cpld_res),
> >>> -						  nvsw_sn2201-
> >>> hotplug_data,
> >>> -						  sizeof(*nvsw_sn2201-
> >>> hotplug_data));
> >>> -		if (IS_ERR(nvsw_sn2201->pdev_hotplug)) {
> >>> -			err = PTR_ERR(nvsw_sn2201->pdev_hotplug);
> >>> -			goto fail_register_hotplug;
> >>> -		}
> >>> -	}
> >>> -
> >>> -	return nvsw_sn2201_config_post_init(nvsw_sn2201);
> >>> -
> >>> -fail_register_hotplug:
> >>> -	if (nvsw_sn2201->wd)
> >>> -		platform_device_unregister(nvsw_sn2201->wd);
> >>> -fail_register_wd:
> >>> -	if (nvsw_sn2201->led)
> >>> -		platform_device_unregister(nvsw_sn2201->led);
> >>> -fail_register_led:
> >>> -	if (nvsw_sn2201->io_regs)
> >>> -		platform_device_unregister(nvsw_sn2201->io_regs);
> >>> -fail_register_io:
> >>> -
> >>> -	return err;
> >>> -}
> >>> -
> >>> -static void nvsw_sn2201_config_exit(struct nvsw_sn2201
> *nvsw_sn2201)
> >>> -{
> >>> -	/* Unregister hotplug driver. */
> >>> -	if (nvsw_sn2201->pdev_hotplug)
> >>> -		platform_device_unregister(nvsw_sn2201->pdev_hotplug);
> >>> -	/* Unregister WD driver. */
> >>> -	if (nvsw_sn2201->wd)
> >>> -		platform_device_unregister(nvsw_sn2201->wd);
> >>> -	/* Unregister LED driver. */
> >>> -	if (nvsw_sn2201->led)
> >>> -		platform_device_unregister(nvsw_sn2201->led);
> >>> -	/* Unregister IO access driver. */
> >>> -	if (nvsw_sn2201->io_regs)
> >>> -		platform_device_unregister(nvsw_sn2201->io_regs);
> >>> -}
> >>> -
> >>> -/*
> >>> - * Initialization is divided into two parts:
> >>> - * - I2C main bus init.
> >>> - * - Mux creation and attaching devices to the mux,
> >>> - *   which assumes that the main bus is already created.
> >>> - * This separation is required for synchronization between these two
> >> parts.
> >>> - * Completion notify callback is used to make this flow synchronized.
> >>> - */
> >>> -static int nvsw_sn2201_i2c_completion_notify(void *handle, int id)
> >>> -{
> >>> -	struct nvsw_sn2201 *nvsw_sn2201 = handle;
> >>> -	void *regmap;
> >>> -	int i, err;
> >>> -
> >>> -	/* Create main mux. */
> >>> -	nvsw_sn2201->main_mux_devs->adapter =
> >> i2c_get_adapter(nvsw_sn2201->main_mux_devs->nr);
> >>> -	if (!nvsw_sn2201->main_mux_devs->adapter) {
> >>> -		err = -ENODEV;
> >>> -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus
> >> %d\n",
> >>> -			nvsw_sn2201->cpld_devs->nr);
> >>> -		goto i2c_get_adapter_main_fail;
> >>> -	}
> >>> -
> >>> -	nvsw_sn2201->main_mux_devs_num =
> >> ARRAY_SIZE(nvsw_sn2201_main_mux_brdinfo);
> >>> -	err = nvsw_sn2201_create_static_devices(nvsw_sn2201,
> >> nvsw_sn2201->main_mux_devs,
> >>> -						nvsw_sn2201-
> >>> main_mux_devs_num);
> >>> -	if (err) {
> >>> -		dev_err(nvsw_sn2201->dev, "Failed to create main mux
> >> devices\n");
> >>> -		goto nvsw_sn2201_create_static_devices_fail;
> >>> -	}
> >>> -
> >>> -	nvsw_sn2201->cpld_devs->adapter = i2c_get_adapter(nvsw_sn2201-
> >>> cpld_devs->nr);
> >>> -	if (!nvsw_sn2201->cpld_devs->adapter) {
> >>> -		err = -ENODEV;
> >>> -		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus
> >> %d\n",
> >>> -			nvsw_sn2201->cpld_devs->nr);
> >>> -		goto i2c_get_adapter_fail;
> >>> -	}
> >>> -
> >>> -	/* Create CPLD device. */
> >>> -	nvsw_sn2201->cpld_devs->client =
> >> i2c_new_dummy_device(nvsw_sn2201->cpld_devs->adapter,
> >>> -
> >> NVSW_SN2201_CPLD_I2CADDR);
> >>> -	if (IS_ERR(nvsw_sn2201->cpld_devs->client)) {
> >>> -		err = PTR_ERR(nvsw_sn2201->cpld_devs->client);
> >>> -		dev_err(nvsw_sn2201->dev, "Failed to create %s cpld device
> >> at bus %d at addr 0x%02x\n",
> >>> -			nvsw_sn2201->cpld_devs->brdinfo->type,
> >> nvsw_sn2201->cpld_devs->nr,
> >>> -			nvsw_sn2201->cpld_devs->brdinfo->addr);
> >>> -		goto i2c_new_dummy_fail;
> >>> -	}
> >>> -
> >>> -	regmap = devm_regmap_init_i2c(nvsw_sn2201->cpld_devs->client,
> >> &nvsw_sn2201_regmap_conf);
> >>> -	if (IS_ERR(regmap)) {
> >>> -		err = PTR_ERR(regmap);
> >>> -		dev_err(nvsw_sn2201->dev, "Failed to initialise managed
> >> register map\n");
> >>> -		goto devm_regmap_init_i2c_fail;
> >>> -	}
> >>> -
> >>> -	/* Set default registers. */
> >>> -	for (i = 0; i < nvsw_sn2201_regmap_conf.num_reg_defaults; i++) {
> >>> -		err = regmap_write(regmap,
> >> nvsw_sn2201_regmap_default[i].reg,
> >>> -				   nvsw_sn2201_regmap_default[i].def);
> >>> -		if (err) {
> >>> -			dev_err(nvsw_sn2201->dev, "Failed to set register at
> >> offset 0x%02x to default value: 0x%02x\n",
> >>> -				nvsw_sn2201_regmap_default[i].reg,
> >>> -				nvsw_sn2201_regmap_default[i].def);
> >>> -			goto regmap_write_fail;
> >>> -		}
> >>> -	}
> >>> -
> >>> -	/* Sync registers with hardware. */
> >>> -	regcache_mark_dirty(regmap);
> >>> -	err = regcache_sync(regmap);
> >>> -	if (err) {
> >>> -		dev_err(nvsw_sn2201->dev, "Failed to Sync registers with
> >> hardware\n");
> >>> -		goto regcache_sync_fail;
> >>> -	}
> >>> -
> >>> -	/* Configure SN2201 board. */
> >>> -	err = nvsw_sn2201_config_init(nvsw_sn2201, regmap);
> >>> -	if (err) {
> >>> -		dev_err(nvsw_sn2201->dev, "Failed to configure board\n");
> >>> -		goto nvsw_sn2201_config_init_fail;
> >>> -	}
> >>> -
> >>> -	return 0;
> >>> -
> >>> -nvsw_sn2201_config_init_fail:
> >>> -	nvsw_sn2201_config_exit(nvsw_sn2201);
> >>> -regcache_sync_fail:
> >>> -regmap_write_fail:
> >>> -devm_regmap_init_i2c_fail:
> >>> -i2c_new_dummy_fail:
> >>> -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
> >>> -	nvsw_sn2201->cpld_devs->adapter = NULL;
> >>> -i2c_get_adapter_fail:
> >>> -	/* Destroy SN2201 static I2C devices. */
> >>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201-
> >>> sn2201_devs,
> >>> -					   nvsw_sn2201->sn2201_devs_num);
> >>> -	/* Destroy main mux device. */
> >>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201-
> >>> main_mux_devs,
> >>> -					   nvsw_sn2201-
> >>> main_mux_devs_num);
> >>> -nvsw_sn2201_create_static_devices_fail:
> >>> -	i2c_put_adapter(nvsw_sn2201->main_mux_devs->adapter);
> >>> -i2c_get_adapter_main_fail:
> >>> -	return err;
> >>> -}
> >>> -
> >>> -static int nvsw_sn2201_config_pre_init(struct nvsw_sn2201
> >> *nvsw_sn2201)
> >>> -{
> >>> -	nvsw_sn2201->i2c_data = &nvsw_sn2201_i2c_data;
> >>> -
> >>> -	/* Register I2C controller. */
> >>> -	nvsw_sn2201->i2c_data->handle = nvsw_sn2201;
> >>> -	nvsw_sn2201->i2c_data->completion_notify =
> >> nvsw_sn2201_i2c_completion_notify;
> >>> -	nvsw_sn2201->pdev_i2c =
> >> platform_device_register_resndata(nvsw_sn2201->dev, "i2c_mlxcpld",
> >>> -
> >> NVSW_SN2201_MAIN_MUX_NR,
> >>> -
> >> nvsw_sn2201_lpc_res,
> >>> -
> >> ARRAY_SIZE(nvsw_sn2201_lpc_res),
> >>> -
> >> nvsw_sn2201->i2c_data,
> >>> -
> >> sizeof(*nvsw_sn2201->i2c_data));
> >>> -	if (IS_ERR(nvsw_sn2201->pdev_i2c))
> >>> -		return PTR_ERR(nvsw_sn2201->pdev_i2c);
> >>> -
> >>> -	return 0;
> >>> -}
> >>> -
> >>> -static int nvsw_sn2201_probe(struct platform_device *pdev)
> >>> -{
> >>> -	struct nvsw_sn2201 *nvsw_sn2201;
> >>> -
> >>> -	nvsw_sn2201 = devm_kzalloc(&pdev->dev, sizeof(*nvsw_sn2201),
> >> GFP_KERNEL);
> >>> -	if (!nvsw_sn2201)
> >>> -		return -ENOMEM;
> >>> -
> >>> -	nvsw_sn2201->dev = &pdev->dev;
> >>> -	platform_set_drvdata(pdev, nvsw_sn2201);
> >>> -	platform_device_add_resources(pdev,
> >> nvsw_sn2201_lpc_io_resources,
> >>> -
> >> ARRAY_SIZE(nvsw_sn2201_lpc_io_resources));
> >>> -
> >>> -	nvsw_sn2201->main_mux_deferred_nr =
> >> NVSW_SN2201_MAIN_MUX_DEFER_NR;
> >>> -	nvsw_sn2201->main_mux_devs = nvsw_sn2201_main_mux_brdinfo;
> >>> -	nvsw_sn2201->cpld_devs = nvsw_sn2201_cpld_brdinfo;
> >>> -	nvsw_sn2201->sn2201_devs = nvsw_sn2201_static_brdinfo;
> >>> -	nvsw_sn2201->sn2201_devs_num =
> >> ARRAY_SIZE(nvsw_sn2201_static_brdinfo);
> >>> -
> >>> -	return nvsw_sn2201_config_pre_init(nvsw_sn2201);
> >>> -}
> >>> -
> >>> -static int nvsw_sn2201_remove(struct platform_device *pdev)
> >>> -{
> >>> -	struct nvsw_sn2201 *nvsw_sn2201 = platform_get_drvdata(pdev);
> >>> -
> >>> -	/* Unregister underlying drivers. */
> >>> -	nvsw_sn2201_config_exit(nvsw_sn2201);
> >>> -
> >>> -	/* Destroy SN2201 static I2C devices. */
> >>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
> >>> -					   nvsw_sn2201->sn2201_devs,
> >>> -					   nvsw_sn2201->sn2201_devs_num);
> >>> -
> >>> -	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
> >>> -	nvsw_sn2201->cpld_devs->adapter = NULL;
> >>> -	/* Destroy main mux device. */
> >>> -	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
> >>> -					   nvsw_sn2201->main_mux_devs,
> >>> -					   nvsw_sn2201-
> >>> main_mux_devs_num);
> >>> -
> >>> -	/* Unregister I2C controller. */
> >>> -	if (nvsw_sn2201->pdev_i2c)
> >>> -		platform_device_unregister(nvsw_sn2201->pdev_i2c);
> >>> -
> >>> -	return 0;
> >>> -}
> >>> -
> >>> -static const struct acpi_device_id nvsw_sn2201_acpi_ids[] = {
> >>> -	{"NVSN2201", 0},
> >>> -	{}
> >>> -};
> >>> -
> >>> -MODULE_DEVICE_TABLE(acpi, nvsw_sn2201_acpi_ids);
> >>> -
> >>> -static struct platform_driver nvsw_sn2201_driver = {
> >>> -	.probe = nvsw_sn2201_probe,
> >>> -	.remove = nvsw_sn2201_remove,
> >>> -	.driver = {
> >>> -		.name = "nvsw-sn2201",
> >>> -	.acpi_match_table = nvsw_sn2201_acpi_ids,
> >>> -	},
> >>> -};
> >>> -
> >>> -module_platform_driver(nvsw_sn2201_driver);
> >>> -
> >>> -MODULE_AUTHOR("Nvidia");
> >>> -MODULE_DESCRIPTION("Nvidia sn2201 platform driver");
> >>> -MODULE_LICENSE("Dual BSD/GPL");
> >>> -MODULE_ALIAS("platform:nvsw-sn2201");
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/asic_health
> >>> +Date:		June 2018
> >>> +KernelVersion:	4.19
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	This file shows ASIC health status. The possible
> values are:
> >>> +		0 - health failed, 2 - health OK, 3 - ASIC in booting state.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld1_version
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld2_version
> >>> +Date:		June 2018
> >>> +KernelVersion:	4.19
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show with which CPLD versions have been
> burned
> >>> +		on carrier and switch boards.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/fan_dir
> >>> +Date:		December 2018
> >>> +KernelVersion:	5.0
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	This file shows the system fans direction:
> >>> +		forward direction - relevant bit is set 0;
> >>> +		reversed direction - relevant bit is set 1.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld3_version
> >>> +Date:		November 2018
> >>> +KernelVersion:	5.0
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show with which CPLD versions have been
> burned
> >>> +		on LED or Gearbox board.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/jtag_enable
> >>> +Date:		November 2018
> >>> +KernelVersion:	5.0
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files enable and disable the access to the JTAG
> domain.
> >>> +		By default access to the JTAG domain is disabled.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/select_iio
> >>> +Date:		June 2018
> >>> +KernelVersion:	4.19
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	This file allows iio devices selection.
> >>> +
> >>> +		Attribute select_iio can be written with 0 or with 1. It
> >>> +		selects which one of iio devices can be accessed.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/psu1_on
> >>> +		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/psu2_on
> >>> +		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/pwr_cycle
> >>> +		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/pwr_down
> >>> +Date:		June 2018
> >>> +KernelVersion:	4.19
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files allow asserting system power cycling,
> switching
> >>> +		power supply units on and off and system's main power
> >> domain
> >>> +		shutdown.
> >>> +		Expected behavior:
> >>> +		When pwr_cycle is written 1: auxiliary power domain will go
> >>> +		down and after short period (about 1 second) up.
> >>> +		When  psu1_on or psu2_on is written 1, related unit will be
> >>> +		disconnected from the power source, when written 0 -
> >> connected.
> >>> +		If both are written 1 - power supplies main power domain
> >> will
> >>> +		go down.
> >>> +		When pwr_down is written 1, system's main power domain
> >> will go
> >>> +		down.
> >>> +
> >>> +		The files are write only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_aux_pwr_or_ref
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_asic_thermal
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_hotswap_or_halt
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_hotswap_or_wd
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_fw_reset
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_long_pb
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_main_pwr_fail
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_short_pb
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_sw_reset
> >>> +Date:		June 2018
> >>> +KernelVersion:	4.19
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show the system reset cause, as following:
> power
> >>> +		auxiliary outage or power refresh, ASIC thermal shutdown,
> >> halt,
> >>> +		hotswap, watchdog, firmware reset, long press power
> >> button,
> >>> +		short press power button, software reset. Value 1 in file
> >> means
> >>> +		this is reset cause, 0 - otherwise. Only one of the above
> >>> +		causes could be 1 at the same time, representing only last
> >>> +		reset cause.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_comex_pwr_fail
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_from_comex
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_system
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_voltmon_upgrade_fail
> >>> +Date:		November 2018
> >>> +KernelVersion:	5.0
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show the system reset cause, as following:
> ComEx
> >>> +		power fail, reset from ComEx, system platform reset, reset
> >>> +		due to voltage monitor devices upgrade failure,
> >>> +		Value 1 in file means this is reset cause, 0 - otherwise.
> >>> +		Only one bit could be 1 at the same time, representing only
> >>> +		the last reset cause.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld4_version
> >>> +Date:		November 2018
> >>> +KernelVersion:	5.0
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show with which CPLD versions have been
> burned
> >>> +		on LED board.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_comex_thermal
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_comex_wd
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_from_asic
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_reload_bios
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_sff_wd
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_swb_wd
> >>> +Date:		June 2019
> >>> +KernelVersion:	5.3
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show the system reset cause, as following:
> >>> +		COMEX thermal shutdown; wathchdog power off or reset
> >> was derived
> >>> +		by one of the next components: COMEX, switch board or by
> >> Small Form
> >>> +		Factor mezzanine, reset requested from ASIC, reset caused
> >> by BIOS
> >>> +		reload. Value 1 in file means this is reset cause, 0 - otherwise.
> >>> +		Only one of the above causes could be 1 at the same time,
> >> representing
> >>> +		only last reset cause.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/config1
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/config2
> >>> +Date:		January 2020
> >>> +KernelVersion:	5.6
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show system static topology identification
> >>> +		like system's static I2C topology, number and type of FPGA
> >>> +		devices within the system and so on.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_ac_pwr_fail
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_platform
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_soc
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/reset_sw_pwr_off
> >>> +Date:		January 2020
> >>> +KernelVersion:	5.6
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show the system reset causes, as
> following: reset
> >>> +		due to AC power failure, reset invoked from software by
> >>> +		assertion reset signal through CPLD. reset caused by signal
> >>> +		asserted by SOC through ACPI register, reset invoked from
> >>> +		software by assertion power off signal through CPLD.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/pcie_asic_reset_dis
> >>> +Date:		January 2020
> >>> +KernelVersion:	5.6
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	This file allows to retain ASIC up during PCIe root
> complex
> >>> +		reset, when attribute is set 1.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/vpd_wp
> >>> +Date:		January 2020
> >>> +KernelVersion:	5.6
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	This file allows to overwrite system VPD hardware
> write
> >>> +		protection when attribute is set 1.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/voltreg_update_status
> >>> +Date:		January 2020
> >>> +KernelVersion:	5.6
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	This file exposes the configuration update status of
> burnable
> >>> +		voltage regulator devices. The status values are as following:
> >>> +		0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
> >>> +
> >>> +		The file is read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/ufm_version
> >>> +Date:		January 2020
> >>> +KernelVersion:	5.6
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	This file exposes the firmware version of burnable
> voltage
> >>> +		regulator devices.
> >>> +
> >>> +		The file is read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld1_pn
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld2_pn
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld3_pn
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld4_pn
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld1_version_min
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld2_version_min
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld3_version_min
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/cpld4_version_min
> >>> +Date:		July 2020
> >>> +KernelVersion:	5.9
> >>> +Contact:	Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:	These files show with which CPLD part numbers and
> minor
> >>> +		versions have been burned CPLD devices equipped on a
> >>> +		system.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/bios_active_image
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/bios_auth_fail
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/bios_upgrade_fail
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	The files represent BIOS statuses:
> >>> +
> >>> +		bios_active_image: location of current active BIOS image:
> >>> +		0: Top, 1: Bottom.
> >>> +		The reported value should correspond to value expected by
> >> OS
> >>> +		in case of BIOS safe mode is 0. This bit is related to Intel
> >>> +		top-swap feature of DualBios on the same flash.
> >>> +
> >>> +		bios_auth_fail: BIOS upgrade is failed because provided BIOS
> >>> +		image is not signed correctly.
> >>> +
> >>> +		bios_upgrade_fail: BIOS upgrade is failed by some other
> >>> +		reason not because authentication. For example due to
> >>> +		physical SPI flash problem.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc1_enable
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc2_enable
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc3_enable
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc4_enable
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc5_enable
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc6_enable
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc7_enable
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc8_enable
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files allow line cards enable state control.
> >>> +		Expected behavior:
> >>> +		When  lc{n}_enable is written 1, related line card is released
> >>> +		from the reset state, when 0 - is hold in reset state.
> >>> +
> >>> +		The files are read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc1_pwr
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc2_pwr
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc3_pwr
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc4_pwr
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc5_pwr
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc6_pwr
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc7_pwr
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc8_pwr
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files switching line cards power on and off.
> >>> +		Expected behavior:
> >>> +		When  lc{n}_pwr is written 1, related line card is powered
> >>> +		on, when written 0 - powered off.
> >>> +
> >>> +		The files are read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc1_rst_mask
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc2_rst_mask
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc3_rst_mask
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc4_rst_mask
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc5_rst_mask
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc6_rst_mask
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc7_rst_mask
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/lc8_rst_mask
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files clear line card reset bit enforced by ASIC,
> when it
> >>> +		sets it due to some abnormal ASIC behavior.
> >>> +		Expected behavior:
> >>> +		When lc{n}_rst_mask is written 1, related line card reset bit
> >>> +		is cleared, when written 0 - no effect.
> >>> +
> >>> +		The files are write only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/os_started
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	This file, when written 1, indicates to programmable
> devices
> >>> +		that OS is taking control over it.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/pm_mgmt_en
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	This file assigns power management control
> ownership.
> >>> +		When power management control is provided by hardware,
> >> hardware
> >>> +		will automatically power off one or more line previously
> >>> +		powered line cards in case system power budget is getting
> >>> +		insufficient. It could be in case when some of power units
> >> lost
> >>> +		power good state.
> >>> +		When pm_mgmt_en is written 1, power management control
> >> by
> >>> +		software is enabled, 0 - power management control by
> >> hardware.
> >>> +		Note that for any setting of pm_mgmt_en attribute hardware
> >> will
> >>> +		not allow to power on any new line card in case system
> >> power
> >>> +		budget is insufficient.
> >>> +		Same in case software will try to power on several line cards
> >>> +		at once - hardware will power line cards while system has
> >>> +		enough power budget.
> >>> +		Default is 0.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/psu3_on
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/psu4_on
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files switching power supply units on and off.
> >>> +		Expected behavior:
> >>> +		When  psu3_on or psu4_on is written 1, related unit will be
> >>> +		disconnected from the power source, when written 0 -
> >> connected.
> >>> +
> >>> +		The files are write only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/shutdown_unlock
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	This file allows to unlock ASIC after thermal
> shutdown event.
> >>> +		When system thermal shutdown is enforced by ASIC, ASIC is
> >>> +		getting locked and after system boot it will not be available.
> >>> +		Software can decide to unlock it by setting this attribute to
> >>> +		1 and then perform system power cycle by setting pwr_cycle
> >>> +		attribute to 1 (power cycle of main power domain).
> >>> +		Before setting shutdown_unlock to 1 it is recommended to
> >>> +		validate that system reboot cause is reset_asic_thermal or
> >>> +		reset_thermal_spc_or_pciesw.
> >>> +		In case shutdown_unlock is not set 1, the only way to release
> >>> +		ASIC from locking - is full system power cycle through the
> >>> +		external power distribution unit.
> >>> +		Default is 1.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_pn
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version_min
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files show with which CPLD major and minor
> versions
> >>> +		and part number has been burned CPLD device on line card.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_pn
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version_min
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files show with which FPGA major and minor
> versions
> >>> +		and part number has been burned FPGA device on line card.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/vpd_wp
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	This file allow to overwrite line card VPD hardware
> write
> >>> +		protection mode. When attribute is set 1 - write protection is
> >>> +		disabled, when 0 - enabled.
> >>> +		Default is 0.
> >>> +		If the system is in locked-down mode writing this file will not
> >>> +		be allowed.
> >>> +		The purpose if this file is to allow line card VPD burning
> >>> +		during production flow.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-
> io.*/hwmon/hwmon*/reset_aux_pwr_or_ref
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_dc_dc_pwr_fail
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_fpga_not_done
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_from_chassis
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_line_card
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-
> >> io.*/hwmon/hwmon*/reset_pwr_off_from_chassis
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files show the line reset cause, as following:
> power
> >>> +		auxiliary outage or power refresh, DC-to-DC power failure,
> >> FPGA reset
> >>> +		failed, line card reset failed, power off from chassis.
> >>> +		Value 1 in file means this is reset cause, 0 - otherwise. Only
> >> one of
> >>> +		the above causes could be 1 at the same time, representing
> >> only last
> >>> +		reset cause.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld_upgrade_en
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_upgrade_en
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files allow CPLD and FPGA burning. Value 1 in
> file
> >> means burning
> >>> +		is enabled, 0 - otherwise.
> >>> +		If the system is in locked-down mode writing these files will
> >>> +		not be allowed.
> >>> +		The purpose of these files to allow line card CPLD and FPGA
> >>> +		upgrade through the JTAG daisy-chain.
> >>> +
> >>> +		The files are read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/qsfp_pwr_en
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/pwr_en
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files allow to power on/off all QSFP ports and
> whole
> >> line card.
> >>> +		The attributes are set 1 for power on, 0 - for power off.
> >>> +
> >>> +		The files are read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/agb_spi_burn_en
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_spi_burn_en
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files allow gearboxes and FPGA SPI flash
> burning.
> >>> +		The attributes are set 1 to enable burning, 0 - to disable.
> >>> +		If the system is in locked-down mode writing these files will
> >>> +		not be allowed.
> >>> +		The purpose of these files to allow line card Gearboxes and
> >> FPGA
> >>> +		burning during production flow.
> >>> +
> >>> +		The file is read/write.
> >>> +
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/max_power
> >>> +What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-
> >> */i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/config
> >>> +Date:		October 2021
> >>> +KernelVersion:	5.16
> >>> +Contact:	Vadim Pasternak <[e-mail]>
> >>> +Description:	These files provide the maximum powered required
> for line
> >> card
> >>> +		feeding and line card configuration Id.
> >>> +
> >>> +		The files are read only.
> >>> +
> >>> +What:           /sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/phy_reset
> >>> +Date:           May 2022
> >>> +KernelVersion:  5.19
> >>> +Contact:        Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:    This file allows to reset PHY 88E1548 when attribute is set
> 0
> >>> +                due to some abnormal PHY behavior.
> >>> +                Expected behavior:
> >>> +                When phy_reset is written 1, all PHY 88E1548 are released
> >>> +                from the reset state, when 0 - are hold in reset state.
> >>> +
> >>> +                The files are read/write.
> >>> +
> >>> +What:           /sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/mac_reset
> >>> +Date:           May 2022
> >>> +KernelVersion:  5.19
> >>> +Contact:        Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:    This file allows to reset ASIC MT52132 when attribute is
> set
> >> 0
> >>> +                due to some abnormal ASIC behavior.
> >>> +                Expected behavior:
> >>> +                When mac_reset is written 1, the ASIC MT52132 is released
> >>> +                from the reset state, when 0 - is hold in reset state.
> >>> +
> >>> +                The files are read/write.
> >>> +
> >>> +What:           /sys/devices/platform/mlxplat/mlxreg-
> >> io/hwmon/hwmon*/qsfp_pwr_good
> >>> +Date:           May 2022
> >>> +KernelVersion:  5.19
> >>> +Contact:        Vadim Pasternak <vadimpmellanox.com>
> >>> +Description:    This file shows QSFP ports power status. The value is set
> to
> >> 0
> >>> +                when one of any QSFP ports is plugged. The value is set to 1
> >> when
> >>> +                there are no any QSFP ports are plugged.
> >>> +                The possible values are:
> >>> +                0 - Power good, 1 - Not power good.
> >>> +
> >>> +                The files are read only.
> >

Patch

diff --git a/drivers/platform/mellanox/nvsw-sn2201.c b/drivers/platform/mellanox/nvsw-sn2201.c
index e1ebd871da04..9e397c54dd85 100644
--- a/drivers/platform/mellanox/nvsw-sn2201.c
+++ b/drivers/platform/mellanox/nvsw-sn2201.c
@@ -1,1261 +1,505 @@ 
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Nvidia sn2201 driver
- *
- * Copyright (C) 2022 Nvidia Technologies Ltd.
- */
-
-#include <linux/device.h>
-#include <linux/i2c.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/gpio.h>
-#include <linux/module.h>
-#include <linux/platform_data/mlxcpld.h>
-#include <linux/platform_data/mlxreg.h>
-#include <linux/platform_device.h>
-#include <linux/regmap.h>
-
-/* SN2201 CPLD register offset. */
-#define NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR          0x2000
-#define NVSW_SN2201_CPLD_LPC_IO_RANGE               0x100
-#define NVSW_SN2201_HW_VER_ID_OFFSET                0x00
-#define NVSW_SN2201_BOARD_ID_OFFSET                 0x01
-#define NVSW_SN2201_CPLD_VER_OFFSET                 0x02
-#define NVSW_SN2201_CPLD_MVER_OFFSET                0x03
-#define NVSW_SN2201_CPLD_ID_OFFSET                  0x04
-#define NVSW_SN2201_CPLD_PN_OFFSET                  0x05
-#define NVSW_SN2201_CPLD_PN1_OFFSET                 0x06
-#define NVSW_SN2201_PSU_CTRL_OFFSET                 0x0a
-#define NVSW_SN2201_QSFP28_STATUS_OFFSET            0x0b
-#define NVSW_SN2201_QSFP28_INT_STATUS_OFFSET        0x0c
-#define NVSW_SN2201_QSFP28_LP_STATUS_OFFSET         0x0d
-#define NVSW_SN2201_QSFP28_RST_STATUS_OFFSET        0x0e
-#define NVSW_SN2201_SYS_STATUS_OFFSET               0x0f
-#define NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET       0x10
-#define NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET       0x12
-#define NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET       0x13
-#define NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET   0x14
-#define NVSW_SN2201_SYS_RST_STATUS_OFFSET           0x15
-#define NVSW_SN2201_SYS_INT_STATUS_OFFSET           0x21
-#define NVSW_SN2201_SYS_INT_MASK_OFFSET             0x22
-#define NVSW_SN2201_ASIC_STATUS_OFFSET              0x24
-#define NVSW_SN2201_ASIC_EVENT_OFFSET               0x25
-#define NVSW_SN2201_ASIC_MAKS_OFFSET                0x26
-#define NVSW_SN2201_THML_STATUS_OFFSET              0x27
-#define NVSW_SN2201_THML_EVENT_OFFSET               0x28
-#define NVSW_SN2201_THML_MASK_OFFSET                0x29
-#define NVSW_SN2201_PS_ALT_STATUS_OFFSET            0x2a
-#define NVSW_SN2201_PS_ALT_EVENT_OFFSET             0x2b
-#define NVSW_SN2201_PS_ALT_MASK_OFFSET              0x2c
-#define NVSW_SN2201_PS_PRSNT_STATUS_OFFSET          0x30
-#define NVSW_SN2201_PS_PRSNT_EVENT_OFFSET           0x31
-#define NVSW_SN2201_PS_PRSNT_MASK_OFFSET            0x32
-#define NVSW_SN2201_PS_DC_OK_STATUS_OFFSET          0x33
-#define NVSW_SN2201_PS_DC_OK_EVENT_OFFSET           0x34
-#define NVSW_SN2201_PS_DC_OK_MASK_OFFSET            0x35
-#define NVSW_SN2201_RST_CAUSE1_OFFSET               0x36
-#define NVSW_SN2201_RST_CAUSE2_OFFSET               0x37
-#define NVSW_SN2201_RST_SW_CTRL_OFFSET              0x38
-#define NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET         0x3a
-#define NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET          0x3b
-#define NVSW_SN2201_FAN_PRSNT_MASK_OFFSET           0x3c
-#define NVSW_SN2201_WD_TMR_OFFSET_LSB               0x40
-#define NVSW_SN2201_WD_TMR_OFFSET_MSB               0x41
-#define NVSW_SN2201_WD_ACT_OFFSET                   0x42
-#define NVSW_SN2201_FAN_LED1_CTRL_OFFSET            0x50
-#define NVSW_SN2201_FAN_LED2_CTRL_OFFSET            0x51
-#define NVSW_SN2201_REG_MAX                         0x52
-
-/* Number of physical I2C busses. */
-#define NVSW_SN2201_PHY_I2C_BUS_NUM		2
-/* Number of main mux channels. */
-#define NVSW_SN2201_MAIN_MUX_CHNL_NUM		8
-
-#define NVSW_SN2201_MAIN_NR			0
-#define NVSW_SN2201_MAIN_MUX_NR			1
-#define NVSW_SN2201_MAIN_MUX_DEFER_NR		(NVSW_SN2201_PHY_I2C_BUS_NUM + \
-						 NVSW_SN2201_MAIN_MUX_CHNL_NUM - 1)
-
-#define NVSW_SN2201_MAIN_MUX_CH0_NR	NVSW_SN2201_PHY_I2C_BUS_NUM
-#define NVSW_SN2201_MAIN_MUX_CH1_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 1)
-#define NVSW_SN2201_MAIN_MUX_CH2_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 2)
-#define NVSW_SN2201_MAIN_MUX_CH3_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 3)
-#define NVSW_SN2201_MAIN_MUX_CH5_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 5)
-#define NVSW_SN2201_MAIN_MUX_CH6_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 6)
-#define NVSW_SN2201_MAIN_MUX_CH7_NR	(NVSW_SN2201_MAIN_MUX_CH0_NR + 7)
-
-#define NVSW_SN2201_CPLD_NR		NVSW_SN2201_MAIN_MUX_CH0_NR
-#define NVSW_SN2201_NR_NONE		-1
-
-/* Masks for aggregation, PSU presence and power, ASIC events
- * in CPLD related registers.
- */
-#define NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF	0xe0
-#define NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF	0x04
-#define NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF	0x02
-#define NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF	0x10
-#define NVSW_SN2201_CPLD_AGGR_MASK_DEF      \
-	(NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF \
-	| NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF \
-	| NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF \
-	| NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF)
-
-#define NVSW_SN2201_CPLD_ASIC_MASK		GENMASK(3, 1)
-#define NVSW_SN2201_CPLD_PSU_MASK		GENMASK(1, 0)
-#define NVSW_SN2201_CPLD_PWR_MASK		GENMASK(1, 0)
-#define NVSW_SN2201_CPLD_FAN_MASK		GENMASK(3, 0)
-
-#define NVSW_SN2201_CPLD_SYSIRQ			26
-#define NVSW_SN2201_LPC_SYSIRQ			28
-#define NVSW_SN2201_CPLD_I2CADDR		0x41
-
-#define NVSW_SN2201_WD_DFLT_TIMEOUT		600
-
-/* nvsw_sn2201 - device private data
- * @dev: platform device;
- * @io_data: register access platform data;
- * @led_data: LED platform data;
- * @hotplug_data: hotplug platform data;
- * @i2c_data: I2C controller platform data;
- * @led: LED device;
- * @io_regs: register access device;
- * @pdev_hotplug: hotplug device;
- * @sn2201_devs: I2C devices for sn2201 devices;
- * @sn2201_devs_num: number of I2C devices for sn2201 device;
- * @main_mux_devs: I2C devices for main mux;
- * @main_mux_devs_num: number of I2C devices for main mux;
- * @cpld_devs: I2C devices for cpld;
- * @cpld_devs_num: number of I2C devices for cpld;
- * @main_mux_deferred_nr: I2C adapter number must be exist prior creating devices execution;
- */
-struct nvsw_sn2201 {
-	struct device *dev;
-	struct mlxreg_core_platform_data *io_data;
-	struct mlxreg_core_platform_data *led_data;
-	struct mlxreg_core_platform_data *wd_data;
-	struct mlxreg_core_hotplug_platform_data *hotplug_data;
-	struct mlxreg_core_hotplug_platform_data *i2c_data;
-	struct platform_device *led;
-	struct platform_device *wd;
-	struct platform_device *io_regs;
-	struct platform_device *pdev_hotplug;
-	struct platform_device *pdev_i2c;
-	struct mlxreg_hotplug_device *sn2201_devs;
-	int sn2201_devs_num;
-	struct mlxreg_hotplug_device *main_mux_devs;
-	int main_mux_devs_num;
-	struct mlxreg_hotplug_device *cpld_devs;
-	int cpld_devs_num;
-	int main_mux_deferred_nr;
-};
-
-static bool nvsw_sn2201_writeable_reg(struct device *dev, unsigned int reg)
-{
-	switch (reg) {
-	case NVSW_SN2201_PSU_CTRL_OFFSET:
-	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
-	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
-	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
-	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
-	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
-	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
-	case NVSW_SN2201_ASIC_EVENT_OFFSET:
-	case NVSW_SN2201_ASIC_MAKS_OFFSET:
-	case NVSW_SN2201_THML_EVENT_OFFSET:
-	case NVSW_SN2201_THML_MASK_OFFSET:
-	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
-	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
-	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
-	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
-	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
-	case NVSW_SN2201_WD_ACT_OFFSET:
-	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
-	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
-		return true;
-	}
-	return false;
-}
-
-static bool nvsw_sn2201_readable_reg(struct device *dev, unsigned int reg)
-{
-	switch (reg) {
-	case NVSW_SN2201_HW_VER_ID_OFFSET:
-	case NVSW_SN2201_BOARD_ID_OFFSET:
-	case NVSW_SN2201_CPLD_VER_OFFSET:
-	case NVSW_SN2201_CPLD_MVER_OFFSET:
-	case NVSW_SN2201_CPLD_ID_OFFSET:
-	case NVSW_SN2201_CPLD_PN_OFFSET:
-	case NVSW_SN2201_CPLD_PN1_OFFSET:
-	case NVSW_SN2201_PSU_CTRL_OFFSET:
-	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
-	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
-	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
-	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_STATUS_OFFSET:
-	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
-	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
-	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
-	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
-	case NVSW_SN2201_RST_CAUSE1_OFFSET:
-	case NVSW_SN2201_RST_CAUSE2_OFFSET:
-	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
-	case NVSW_SN2201_ASIC_STATUS_OFFSET:
-	case NVSW_SN2201_ASIC_EVENT_OFFSET:
-	case NVSW_SN2201_ASIC_MAKS_OFFSET:
-	case NVSW_SN2201_THML_STATUS_OFFSET:
-	case NVSW_SN2201_THML_EVENT_OFFSET:
-	case NVSW_SN2201_THML_MASK_OFFSET:
-	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
-	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
-	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
-	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
-	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
-	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
-	case NVSW_SN2201_WD_ACT_OFFSET:
-	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
-	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
-		return true;
-	}
-	return false;
-}
-
-static bool nvsw_sn2201_volatile_reg(struct device *dev, unsigned int reg)
-{
-	switch (reg) {
-	case NVSW_SN2201_HW_VER_ID_OFFSET:
-	case NVSW_SN2201_BOARD_ID_OFFSET:
-	case NVSW_SN2201_CPLD_VER_OFFSET:
-	case NVSW_SN2201_CPLD_MVER_OFFSET:
-	case NVSW_SN2201_CPLD_ID_OFFSET:
-	case NVSW_SN2201_CPLD_PN_OFFSET:
-	case NVSW_SN2201_CPLD_PN1_OFFSET:
-	case NVSW_SN2201_PSU_CTRL_OFFSET:
-	case NVSW_SN2201_QSFP28_STATUS_OFFSET:
-	case NVSW_SN2201_QSFP28_INT_STATUS_OFFSET:
-	case NVSW_SN2201_QSFP28_LP_STATUS_OFFSET:
-	case NVSW_SN2201_QSFP28_RST_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_STATUS_OFFSET:
-	case NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET:
-	case NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET:
-	case NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET:
-	case NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_RST_STATUS_OFFSET:
-	case NVSW_SN2201_RST_CAUSE1_OFFSET:
-	case NVSW_SN2201_RST_CAUSE2_OFFSET:
-	case NVSW_SN2201_SYS_INT_STATUS_OFFSET:
-	case NVSW_SN2201_SYS_INT_MASK_OFFSET:
-	case NVSW_SN2201_ASIC_STATUS_OFFSET:
-	case NVSW_SN2201_ASIC_EVENT_OFFSET:
-	case NVSW_SN2201_ASIC_MAKS_OFFSET:
-	case NVSW_SN2201_THML_STATUS_OFFSET:
-	case NVSW_SN2201_THML_EVENT_OFFSET:
-	case NVSW_SN2201_THML_MASK_OFFSET:
-	case NVSW_SN2201_PS_ALT_STATUS_OFFSET:
-	case NVSW_SN2201_PS_ALT_EVENT_OFFSET:
-	case NVSW_SN2201_PS_ALT_MASK_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_STATUS_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_EVENT_OFFSET:
-	case NVSW_SN2201_PS_PRSNT_MASK_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_STATUS_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_EVENT_OFFSET:
-	case NVSW_SN2201_PS_DC_OK_MASK_OFFSET:
-	case NVSW_SN2201_RST_SW_CTRL_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_EVENT_OFFSET:
-	case NVSW_SN2201_FAN_PRSNT_MASK_OFFSET:
-	case NVSW_SN2201_WD_TMR_OFFSET_LSB:
-	case NVSW_SN2201_WD_TMR_OFFSET_MSB:
-	case NVSW_SN2201_FAN_LED1_CTRL_OFFSET:
-	case NVSW_SN2201_FAN_LED2_CTRL_OFFSET:
-		return true;
-	}
-	return false;
-}
-
-static const struct reg_default nvsw_sn2201_regmap_default[] = {
-	{ NVSW_SN2201_QSFP28_LED_TEST_STATUS_OFFSET, 0x00 },
-	{ NVSW_SN2201_WD_ACT_OFFSET, 0x00 },
-};
-
-/* Configuration for the register map of a device with 1 bytes address space. */
-static const struct regmap_config nvsw_sn2201_regmap_conf = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = NVSW_SN2201_REG_MAX,
-	.cache_type = REGCACHE_FLAT,
-	.writeable_reg = nvsw_sn2201_writeable_reg,
-	.readable_reg = nvsw_sn2201_readable_reg,
-	.volatile_reg = nvsw_sn2201_volatile_reg,
-	.reg_defaults = nvsw_sn2201_regmap_default,
-	.num_reg_defaults = ARRAY_SIZE(nvsw_sn2201_regmap_default),
-};
-
-/* Regions for LPC I2C controller and LPC base register space. */
-static const struct resource nvsw_sn2201_lpc_io_resources[] = {
-	[0] = DEFINE_RES_NAMED(NVSW_SN2201_CPLD_LPC_I2C_BASE_ADRR,
-			       NVSW_SN2201_CPLD_LPC_IO_RANGE,
-			       "mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
-};
-
-static struct resource nvsw_sn2201_cpld_res[] = {
-	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_CPLD_SYSIRQ, "mlxreg-hotplug"),
-};
-
-static struct resource nvsw_sn2201_lpc_res[] = {
-	[0] = DEFINE_RES_IRQ_NAMED(NVSW_SN2201_LPC_SYSIRQ, "i2c-mlxcpld"),
-};
-
-/* SN2201 I2C platform data. */
-struct mlxreg_core_hotplug_platform_data nvsw_sn2201_i2c_data = {
-	.irq = NVSW_SN2201_CPLD_SYSIRQ,
-};
-
-/* SN2201 CPLD device. */
-static struct i2c_board_info nvsw_sn2201_cpld_devices[] = {
-	{
-		I2C_BOARD_INFO("nvsw-sn2201", 0x41),
-	},
-};
-
-/* SN2201 CPLD board info. */
-static struct mlxreg_hotplug_device nvsw_sn2201_cpld_brdinfo[] = {
-	{
-		.brdinfo = &nvsw_sn2201_cpld_devices[0],
-		.nr = NVSW_SN2201_CPLD_NR,
-	},
-};
-
-/* SN2201 main mux device. */
-static struct i2c_board_info nvsw_sn2201_main_mux_devices[] = {
-	{
-		I2C_BOARD_INFO("pca9548", 0x70),
-	},
-};
-
-/* SN2201 main mux board info. */
-static struct mlxreg_hotplug_device nvsw_sn2201_main_mux_brdinfo[] = {
-	{
-		.brdinfo = &nvsw_sn2201_main_mux_devices[0],
-		.nr = NVSW_SN2201_MAIN_MUX_NR,
-	},
-};
-
-/* SN2201 power devices. */
-static struct i2c_board_info nvsw_sn2201_pwr_devices[] = {
-	{
-		I2C_BOARD_INFO("pmbus", 0x58),
-	},
-	{
-		I2C_BOARD_INFO("pmbus", 0x58),
-	},
-};
-
-/* SN2201 fan devices. */
-static struct i2c_board_info nvsw_sn2201_fan_devices[] = {
-	{
-		I2C_BOARD_INFO("24c02", 0x50),
-	},
-	{
-		I2C_BOARD_INFO("24c02", 0x51),
-	},
-	{
-		I2C_BOARD_INFO("24c02", 0x52),
-	},
-	{
-		I2C_BOARD_INFO("24c02", 0x53),
-	},
-};
-
-/* SN2201 hotplug default data. */
-static struct mlxreg_core_data nvsw_sn2201_psu_items_data[] = {
-	{
-		.label = "psu1",
-		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
-		.mask = BIT(0),
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-	{
-		.label = "psu2",
-		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
-		.mask = BIT(1),
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-};
-
-static struct mlxreg_core_data nvsw_sn2201_pwr_items_data[] = {
-	{
-		.label = "pwr1",
-		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
-		.mask = BIT(0),
-		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[0],
-		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH1_NR,
-	},
-	{
-		.label = "pwr2",
-		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
-		.mask = BIT(1),
-		.hpdev.brdinfo = &nvsw_sn2201_pwr_devices[1],
-		.hpdev.nr = NVSW_SN2201_MAIN_MUX_CH2_NR,
-	},
-};
-
-static struct mlxreg_core_data nvsw_sn2201_fan_items_data[] = {
-	{
-		.label = "fan1",
-		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
-		.mask = BIT(0),
-		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[0],
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-	{
-		.label = "fan2",
-		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
-		.mask = BIT(1),
-		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[1],
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-	{
-		.label = "fan3",
-		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
-		.mask = BIT(2),
-		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[2],
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-	{
-		.label = "fan4",
-		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
-		.mask = BIT(3),
-		.hpdev.brdinfo = &nvsw_sn2201_fan_devices[3],
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-};
-
-static struct mlxreg_core_data nvsw_sn2201_sys_items_data[] = {
-	{
-		.label = "nic_smb_alert",
-		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
-		.mask = BIT(1),
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-	{
-		.label = "cpu_sd",
-		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
-		.mask = BIT(2),
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-	{
-		.label = "mac_health",
-		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
-		.mask = BIT(3),
-		.hpdev.nr = NVSW_SN2201_NR_NONE,
-	},
-};
-
-static struct mlxreg_core_item nvsw_sn2201_items[] = {
-	{
-		.data = nvsw_sn2201_psu_items_data,
-		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PSU_MASK_DEF,
-		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
-		.mask = NVSW_SN2201_CPLD_PSU_MASK,
-		.count = ARRAY_SIZE(nvsw_sn2201_psu_items_data),
-		.inversed = 1,
-		.health = false,
-	},
-	{
-		.data = nvsw_sn2201_pwr_items_data,
-		.aggr_mask = NVSW_SN2201_CPLD_AGGR_PWR_MASK_DEF,
-		.reg = NVSW_SN2201_PS_DC_OK_STATUS_OFFSET,
-		.mask = NVSW_SN2201_CPLD_PWR_MASK,
-		.count = ARRAY_SIZE(nvsw_sn2201_pwr_items_data),
-		.inversed = 0,
-		.health = false,
-	},
-	{
-		.data = nvsw_sn2201_fan_items_data,
-		.aggr_mask = NVSW_SN2201_CPLD_AGGR_FAN_MASK_DEF,
-		.reg = NVSW_SN2201_FAN_PRSNT_STATUS_OFFSET,
-		.mask = NVSW_SN2201_CPLD_FAN_MASK,
-		.count = ARRAY_SIZE(nvsw_sn2201_fan_items_data),
-		.inversed = 1,
-		.health = false,
-	},
-	{
-		.data = nvsw_sn2201_sys_items_data,
-		.aggr_mask = NVSW_SN2201_CPLD_AGGR_ASIC_MASK_DEF,
-		.reg = NVSW_SN2201_ASIC_STATUS_OFFSET,
-		.mask = NVSW_SN2201_CPLD_ASIC_MASK,
-		.count = ARRAY_SIZE(nvsw_sn2201_sys_items_data),
-		.inversed = 1,
-		.health = false,
-	},
-};
-
-static
-struct mlxreg_core_hotplug_platform_data nvsw_sn2201_hotplug = {
-	.items = nvsw_sn2201_items,
-	.counter = ARRAY_SIZE(nvsw_sn2201_items),
-	.cell = NVSW_SN2201_SYS_INT_STATUS_OFFSET,
-	.mask = NVSW_SN2201_CPLD_AGGR_MASK_DEF,
-};
-
-/* SN2201 static devices. */
-static struct i2c_board_info nvsw_sn2201_static_devices[] = {
-	{
-		I2C_BOARD_INFO("24c02", 0x57),
-	},
-	{
-		I2C_BOARD_INFO("lm75", 0x4b),
-	},
-	{
-		I2C_BOARD_INFO("24c64", 0x56),
-	},
-	{
-		I2C_BOARD_INFO("ads1015", 0x49),
-	},
-	{
-		I2C_BOARD_INFO("pca9546", 0x71),
-	},
-	{
-		I2C_BOARD_INFO("emc2305", 0x4d),
-	},
-	{
-		I2C_BOARD_INFO("lm75", 0x49),
-	},
-	{
-		I2C_BOARD_INFO("pca9555", 0x27),
-	},
-	{
-		I2C_BOARD_INFO("powr1014", 0x37),
-	},
-	{
-		I2C_BOARD_INFO("lm75", 0x4f),
-	},
-	{
-		I2C_BOARD_INFO("pmbus", 0x40),
-	},
-};
-
-/* SN2201 default static board info. */
-static struct mlxreg_hotplug_device nvsw_sn2201_static_brdinfo[] = {
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[0],
-		.nr = NVSW_SN2201_MAIN_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[1],
-		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[2],
-		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[3],
-		.nr = NVSW_SN2201_MAIN_MUX_CH0_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[4],
-		.nr = NVSW_SN2201_MAIN_MUX_CH3_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[5],
-		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[6],
-		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[7],
-		.nr = NVSW_SN2201_MAIN_MUX_CH5_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[8],
-		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[9],
-		.nr = NVSW_SN2201_MAIN_MUX_CH6_NR,
-	},
-	{
-		.brdinfo = &nvsw_sn2201_static_devices[10],
-		.nr = NVSW_SN2201_MAIN_MUX_CH7_NR,
-	},
-};
-
-/* LED default data. */
-static struct mlxreg_core_data nvsw_sn2201_led_data[] = {
-	{
-		.label = "status:green",
-		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "status:orange",
-		.reg = NVSW_SN2201_FRONT_SYS_LED_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "psu:green",
-		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "psu:orange",
-		.reg = NVSW_SN2201_FRONT_PSU_LED_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "uid:blue",
-		.reg = NVSW_SN2201_FRONT_UID_LED_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "fan1:green",
-		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "fan1:orange",
-		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "fan2:green",
-		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
-		.mask = GENMASK(3, 0),
-	},
-	{
-		.label = "fan2:orange",
-		.reg = NVSW_SN2201_FAN_LED1_CTRL_OFFSET,
-		.mask = GENMASK(3, 0),
-	},
-	{
-		.label = "fan3:green",
-		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "fan3:orange",
-		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
-		.mask = GENMASK(7, 4),
-	},
-	{
-		.label = "fan4:green",
-		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
-		.mask = GENMASK(3, 0),
-	},
-	{
-		.label = "fan4:orange",
-		.reg = NVSW_SN2201_FAN_LED2_CTRL_OFFSET,
-		.mask = GENMASK(3, 0),
-	},
-};
-
-static struct mlxreg_core_platform_data nvsw_sn2201_led = {
-	.data = nvsw_sn2201_led_data,
-	.counter = ARRAY_SIZE(nvsw_sn2201_led_data),
-};
-
-/* Default register access data. */
-static struct mlxreg_core_data nvsw_sn2201_io_data[] = {
-	{
-		.label = "cpld1_version",
-		.reg = NVSW_SN2201_CPLD_VER_OFFSET,
-		.bit = GENMASK(7, 0),
-		.mode = 0444,
-	},
-	{
-		.label = "cpld1_version_min",
-		.reg = NVSW_SN2201_CPLD_MVER_OFFSET,
-		.bit = GENMASK(7, 0),
-		.mode = 0444,
-	},
-	{
-		.label = "cpld1_pn",
-		.reg = NVSW_SN2201_CPLD_PN_OFFSET,
-		.bit = GENMASK(15, 0),
-		.mode = 0444,
-		.regnum = 2,
-	},
-	{
-		.label = "psu1_on",
-		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(0),
-		.mode = 0644,
-	},
-	{
-		.label = "psu2_on",
-		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(1),
-		.mode = 0644,
-	},
-	{
-		.label = "pwr_cycle",
-		.reg = NVSW_SN2201_PSU_CTRL_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(2),
-		.mode = 0644,
-	},
-	{
-		.label = "asic_health",
-		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
-		.mask = GENMASK(4, 3),
-		.bit = 4,
-		.mode = 0444,
-	},
-	{
-		.label = "qsfp_pwr_good",
-		.reg = NVSW_SN2201_SYS_STATUS_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(0),
-		.mode = 0444,
-	},
-	{
-		.label = "phy_reset",
-		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(3),
-		.mode = 0644,
-	},
-	{
-		.label = "mac_reset",
-		.reg = NVSW_SN2201_SYS_RST_STATUS_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(2),
-		.mode = 0644,
-	},
-	{
-		.label = "pwr_down",
-		.reg = NVSW_SN2201_RST_SW_CTRL_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(0),
-		.mode = 0644,
-	},
-	{
-		.label = "reset_long_pb",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(0),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_short_pb",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(1),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_aux_pwr_or_fu",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(2),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_swb_dc_dc_pwr_fail",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(3),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_sw_reset",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(4),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_fw_reset",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(5),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_swb_wd",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(6),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_asic_thermal",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(7),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_system",
-		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(1),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_sw_pwr_off",
-		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(2),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_cpu_pwr_fail_thermal",
-		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(4),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_reload_bios",
-		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(5),
-		.mode = 0444,
-	},
-	{
-		.label = "reset_ac_pwr_fail",
-		.reg = NVSW_SN2201_RST_CAUSE2_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(6),
-		.mode = 0444,
-	},
-	{
-		.label = "psu1",
-		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(0),
-		.mode = 0444,
-	},
-	{
-		.label = "psu2",
-		.reg = NVSW_SN2201_PS_PRSNT_STATUS_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(1),
-		.mode = 0444,
-	},
-};
-
-static struct mlxreg_core_platform_data nvsw_sn2201_regs_io = {
-	.data = nvsw_sn2201_io_data,
-	.counter = ARRAY_SIZE(nvsw_sn2201_io_data),
-};
-
-/* Default watchdog data. */
-static struct mlxreg_core_data nvsw_sn2201_wd_data[] = {
-	{
-		.label = "action",
-		.reg = NVSW_SN2201_WD_ACT_OFFSET,
-		.mask = GENMASK(7, 1),
-		.bit = 0,
-	},
-	{
-		.label = "timeout",
-		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
-		.mask = 0,
-		.health_cntr = NVSW_SN2201_WD_DFLT_TIMEOUT,
-	},
-	{
-		.label = "timeleft",
-		.reg = NVSW_SN2201_WD_TMR_OFFSET_LSB,
-		.mask = 0,
-	},
-	{
-		.label = "ping",
-		.reg = NVSW_SN2201_WD_ACT_OFFSET,
-		.mask = GENMASK(7, 1),
-		.bit = 0,
-	},
-	{
-		.label = "reset",
-		.reg = NVSW_SN2201_RST_CAUSE1_OFFSET,
-		.mask = GENMASK(7, 0) & ~BIT(6),
-		.bit = 6,
-	},
-};
-
-static struct mlxreg_core_platform_data nvsw_sn2201_wd = {
-	.data = nvsw_sn2201_wd_data,
-	.counter = ARRAY_SIZE(nvsw_sn2201_wd_data),
-	.version = MLX_WDT_TYPE3,
-	.identity = "mlx-wdt-main",
-};
-
-static int
-nvsw_sn2201_create_static_devices(struct nvsw_sn2201 *nvsw_sn2201,
-				  struct mlxreg_hotplug_device *devs,
-				  int size)
-{
-	struct mlxreg_hotplug_device *dev = devs;
-	int i;
-
-	/* Create I2C static devices. */
-	for (i = 0; i < size; i++, dev++) {
-		dev->client = i2c_new_client_device(dev->adapter, dev->brdinfo);
-		if (IS_ERR(dev->client)) {
-			dev_err(nvsw_sn2201->dev, "Failed to create client %s at bus %d at addr 0x%02x\n",
-				dev->brdinfo->type,
-				dev->nr, dev->brdinfo->addr);
-
-			dev->adapter = NULL;
-			goto fail_create_static_devices;
-		}
-	}
-
-	return 0;
-
-fail_create_static_devices:
-	while (--i >= 0) {
-		dev = devs + i;
-		i2c_unregister_device(dev->client);
-		dev->client = NULL;
-		dev->adapter = NULL;
-	}
-	return IS_ERR(dev->client);
-}
-
-static void nvsw_sn2201_destroy_static_devices(struct nvsw_sn2201 *nvsw_sn2201,
-					       struct mlxreg_hotplug_device *devs, int size)
-{
-	struct mlxreg_hotplug_device *dev = devs;
-	int i;
-
-	/* Destroy static I2C device for SN2201 static devices. */
-	for (i = 0; i < size; i++, dev++) {
-		if (dev->client) {
-			i2c_unregister_device(dev->client);
-			dev->client = NULL;
-			i2c_put_adapter(dev->adapter);
-			dev->adapter = NULL;
-		}
-	}
-}
-
-static int nvsw_sn2201_config_post_init(struct nvsw_sn2201 *nvsw_sn2201)
-{
-	struct mlxreg_hotplug_device *sn2201_dev;
-	struct i2c_adapter *adap;
-	struct device *dev;
-	int i, j, err;
-
-	dev = nvsw_sn2201->dev;
-	adap = i2c_get_adapter(nvsw_sn2201->main_mux_deferred_nr);
-	if (!adap) {
-		dev_err(dev, "Failed to get adapter for bus %d\n",
-			nvsw_sn2201->main_mux_deferred_nr);
-		return -ENODEV;
-	}
-	i2c_put_adapter(adap);
-
-	/* Update board info. */
-	sn2201_dev = nvsw_sn2201->sn2201_devs;
-	for (i = 0, j = 0; i < nvsw_sn2201->sn2201_devs_num; i++, sn2201_dev++) {
-		sn2201_dev->adapter = i2c_get_adapter(sn2201_dev->nr);
-		if (!sn2201_dev->adapter)
-			return -ENODEV;
-		i2c_put_adapter(sn2201_dev->adapter);
-	}
-
-	err = nvsw_sn2201_create_static_devices(nvsw_sn2201, nvsw_sn2201->sn2201_devs,
-						nvsw_sn2201->sn2201_devs_num);
-	if (err)
-		dev_err(dev, "Failed to create static devices\n");
-
-	return err;
-}
-
-static int nvsw_sn2201_config_init(struct nvsw_sn2201 *nvsw_sn2201, void *regmap)
-{
-	struct device *dev = nvsw_sn2201->dev;
-	int err;
-
-	nvsw_sn2201->io_data = &nvsw_sn2201_regs_io;
-	nvsw_sn2201->led_data = &nvsw_sn2201_led;
-	nvsw_sn2201->wd_data = &nvsw_sn2201_wd;
-	nvsw_sn2201->hotplug_data = &nvsw_sn2201_hotplug;
-
-	/* Register IO access driver. */
-	if (nvsw_sn2201->io_data) {
-		nvsw_sn2201->io_data->regmap = regmap;
-		nvsw_sn2201->io_regs =
-		platform_device_register_resndata(dev, "mlxreg-io", PLATFORM_DEVID_NONE, NULL, 0,
-						  nvsw_sn2201->io_data,
-						  sizeof(*nvsw_sn2201->io_data));
-		if (IS_ERR(nvsw_sn2201->io_regs)) {
-			err = PTR_ERR(nvsw_sn2201->io_regs);
-			goto fail_register_io;
-		}
-	}
-
-	/* Register LED driver. */
-	if (nvsw_sn2201->led_data) {
-		nvsw_sn2201->led_data->regmap = regmap;
-		nvsw_sn2201->led =
-		platform_device_register_resndata(dev, "leds-mlxreg", PLATFORM_DEVID_NONE, NULL, 0,
-						  nvsw_sn2201->led_data,
-						  sizeof(*nvsw_sn2201->led_data));
-		if (IS_ERR(nvsw_sn2201->led)) {
-			err = PTR_ERR(nvsw_sn2201->led);
-			goto fail_register_led;
-		}
-	}
-
-	/* Register WD driver. */
-	if (nvsw_sn2201->wd_data) {
-		nvsw_sn2201->wd_data->regmap = regmap;
-		nvsw_sn2201->wd =
-		platform_device_register_resndata(dev, "mlx-wdt", PLATFORM_DEVID_NONE, NULL, 0,
-						  nvsw_sn2201->wd_data,
-						  sizeof(*nvsw_sn2201->wd_data));
-		if (IS_ERR(nvsw_sn2201->wd)) {
-			err = PTR_ERR(nvsw_sn2201->wd);
-			goto fail_register_wd;
-		}
-	}
-
-	/* Register hotplug driver. */
-	if (nvsw_sn2201->hotplug_data) {
-		nvsw_sn2201->hotplug_data->regmap = regmap;
-		nvsw_sn2201->pdev_hotplug =
-		platform_device_register_resndata(dev, "mlxreg-hotplug", PLATFORM_DEVID_NONE,
-						  nvsw_sn2201_cpld_res,
-						  ARRAY_SIZE(nvsw_sn2201_cpld_res),
-						  nvsw_sn2201->hotplug_data,
-						  sizeof(*nvsw_sn2201->hotplug_data));
-		if (IS_ERR(nvsw_sn2201->pdev_hotplug)) {
-			err = PTR_ERR(nvsw_sn2201->pdev_hotplug);
-			goto fail_register_hotplug;
-		}
-	}
-
-	return nvsw_sn2201_config_post_init(nvsw_sn2201);
-
-fail_register_hotplug:
-	if (nvsw_sn2201->wd)
-		platform_device_unregister(nvsw_sn2201->wd);
-fail_register_wd:
-	if (nvsw_sn2201->led)
-		platform_device_unregister(nvsw_sn2201->led);
-fail_register_led:
-	if (nvsw_sn2201->io_regs)
-		platform_device_unregister(nvsw_sn2201->io_regs);
-fail_register_io:
-
-	return err;
-}
-
-static void nvsw_sn2201_config_exit(struct nvsw_sn2201 *nvsw_sn2201)
-{
-	/* Unregister hotplug driver. */
-	if (nvsw_sn2201->pdev_hotplug)
-		platform_device_unregister(nvsw_sn2201->pdev_hotplug);
-	/* Unregister WD driver. */
-	if (nvsw_sn2201->wd)
-		platform_device_unregister(nvsw_sn2201->wd);
-	/* Unregister LED driver. */
-	if (nvsw_sn2201->led)
-		platform_device_unregister(nvsw_sn2201->led);
-	/* Unregister IO access driver. */
-	if (nvsw_sn2201->io_regs)
-		platform_device_unregister(nvsw_sn2201->io_regs);
-}
-
-/* 
- * Initialization is divided into two parts:
- * - I2C main bus init.
- * - Mux creation and attaching devices to the mux, 
- *   which assumes that the main bus is already created.
- * This separation is required for synchronization between these two parts. 
- * Completion notify callback is used to make this flow synchronized.
- */ 
-static int nvsw_sn2201_i2c_completion_notify(void *handle, int id)
-{
-	struct nvsw_sn2201 *nvsw_sn2201 = handle;
-	void *regmap;
-	int i, err;
-
-	/* Create main mux. */
-	nvsw_sn2201->main_mux_devs->adapter = i2c_get_adapter(nvsw_sn2201->main_mux_devs->nr);
-	if (!nvsw_sn2201->main_mux_devs->adapter) {
-		err = -ENODEV;
-		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus %d\n",
-			nvsw_sn2201->cpld_devs->nr);
-		goto i2c_get_adapter_main_fail;
-	}
-
-	nvsw_sn2201->main_mux_devs_num = ARRAY_SIZE(nvsw_sn2201_main_mux_brdinfo);
-	err = nvsw_sn2201_create_static_devices(nvsw_sn2201, nvsw_sn2201->main_mux_devs,
-						nvsw_sn2201->main_mux_devs_num);
-	if (err) {
-		dev_err(nvsw_sn2201->dev, "Failed to create main mux devices\n");
-		goto nvsw_sn2201_create_static_devices_fail;
-	}
-
-	nvsw_sn2201->cpld_devs->adapter = i2c_get_adapter(nvsw_sn2201->cpld_devs->nr);
-	if (!nvsw_sn2201->cpld_devs->adapter) {
-		err = -ENODEV;
-		dev_err(nvsw_sn2201->dev, "Failed to get adapter for bus %d\n",
-			nvsw_sn2201->cpld_devs->nr);
-		goto i2c_get_adapter_fail;
-	}
-
-	/* Create CPLD device. */
-	nvsw_sn2201->cpld_devs->client = i2c_new_dummy_device(nvsw_sn2201->cpld_devs->adapter,
-							      NVSW_SN2201_CPLD_I2CADDR);
-	if (IS_ERR(nvsw_sn2201->cpld_devs->client)) {
-		err = PTR_ERR(nvsw_sn2201->cpld_devs->client);
-		dev_err(nvsw_sn2201->dev, "Failed to create %s cpld device at bus %d at addr 0x%02x\n",
-			nvsw_sn2201->cpld_devs->brdinfo->type, nvsw_sn2201->cpld_devs->nr,
-			nvsw_sn2201->cpld_devs->brdinfo->addr);
-		goto i2c_new_dummy_fail;
-	}
-
-	regmap = devm_regmap_init_i2c(nvsw_sn2201->cpld_devs->client, &nvsw_sn2201_regmap_conf);
-	if (IS_ERR(regmap)) {
-		err = PTR_ERR(regmap);
-		dev_err(nvsw_sn2201->dev, "Failed to initialise managed register map\n");
-		goto devm_regmap_init_i2c_fail;
-	}
-
-	/* Set default registers. */
-	for (i = 0; i < nvsw_sn2201_regmap_conf.num_reg_defaults; i++) {
-		err = regmap_write(regmap, nvsw_sn2201_regmap_default[i].reg,
-				   nvsw_sn2201_regmap_default[i].def);
-		if (err) {
-			dev_err(nvsw_sn2201->dev, "Failed to set register at offset 0x%02x to default value: 0x%02x\n",
-				nvsw_sn2201_regmap_default[i].reg,
-				nvsw_sn2201_regmap_default[i].def);
-			goto regmap_write_fail;
-		}
-	}
-
-	/* Sync registers with hardware. */
-	regcache_mark_dirty(regmap);
-	err = regcache_sync(regmap);
-	if (err) {
-		dev_err(nvsw_sn2201->dev, "Failed to Sync registers with hardware\n");
-		goto regcache_sync_fail;
-	}
-
-	/* Configure SN2201 board. */
-	err = nvsw_sn2201_config_init(nvsw_sn2201, regmap);
-	if (err) {
-		dev_err(nvsw_sn2201->dev, "Failed to configure board\n");
-		goto nvsw_sn2201_config_init_fail;
-	}
-
-	return 0;
-
-nvsw_sn2201_config_init_fail:
-	nvsw_sn2201_config_exit(nvsw_sn2201);
-regcache_sync_fail:
-regmap_write_fail:
-devm_regmap_init_i2c_fail:
-i2c_new_dummy_fail:
-	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
-	nvsw_sn2201->cpld_devs->adapter = NULL;
-i2c_get_adapter_fail:
-	/* Destroy SN2201 static I2C devices. */
-	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201->sn2201_devs,
-					   nvsw_sn2201->sn2201_devs_num);
-	/* Destroy main mux device. */
-	nvsw_sn2201_destroy_static_devices(nvsw_sn2201, nvsw_sn2201->main_mux_devs,
-					   nvsw_sn2201->main_mux_devs_num);
-nvsw_sn2201_create_static_devices_fail:
-	i2c_put_adapter(nvsw_sn2201->main_mux_devs->adapter);
-i2c_get_adapter_main_fail:
-	return err;
-}
-
-static int nvsw_sn2201_config_pre_init(struct nvsw_sn2201 *nvsw_sn2201)
-{
-	nvsw_sn2201->i2c_data = &nvsw_sn2201_i2c_data;
-
-	/* Register I2C controller. */
-	nvsw_sn2201->i2c_data->handle = nvsw_sn2201;
-	nvsw_sn2201->i2c_data->completion_notify = nvsw_sn2201_i2c_completion_notify;
-	nvsw_sn2201->pdev_i2c = platform_device_register_resndata(nvsw_sn2201->dev, "i2c_mlxcpld",
-								  NVSW_SN2201_MAIN_MUX_NR,
-								  nvsw_sn2201_lpc_res,
-								  ARRAY_SIZE(nvsw_sn2201_lpc_res),
-								  nvsw_sn2201->i2c_data,
-								  sizeof(*nvsw_sn2201->i2c_data));
-	if (IS_ERR(nvsw_sn2201->pdev_i2c))
-		return PTR_ERR(nvsw_sn2201->pdev_i2c);
-
-	return 0;
-}
-
-static int nvsw_sn2201_probe(struct platform_device *pdev)
-{
-	struct nvsw_sn2201 *nvsw_sn2201;
-
-	nvsw_sn2201 = devm_kzalloc(&pdev->dev, sizeof(*nvsw_sn2201), GFP_KERNEL);
-	if (!nvsw_sn2201)
-		return -ENOMEM;
-
-	nvsw_sn2201->dev = &pdev->dev;
-	platform_set_drvdata(pdev, nvsw_sn2201);
-	platform_device_add_resources(pdev, nvsw_sn2201_lpc_io_resources,
-				      ARRAY_SIZE(nvsw_sn2201_lpc_io_resources));
-
-	nvsw_sn2201->main_mux_deferred_nr = NVSW_SN2201_MAIN_MUX_DEFER_NR;
-	nvsw_sn2201->main_mux_devs = nvsw_sn2201_main_mux_brdinfo;
-	nvsw_sn2201->cpld_devs = nvsw_sn2201_cpld_brdinfo;
-	nvsw_sn2201->sn2201_devs = nvsw_sn2201_static_brdinfo;
-	nvsw_sn2201->sn2201_devs_num = ARRAY_SIZE(nvsw_sn2201_static_brdinfo);
-
-	return nvsw_sn2201_config_pre_init(nvsw_sn2201);
-}
-
-static int nvsw_sn2201_remove(struct platform_device *pdev)
-{
-	struct nvsw_sn2201 *nvsw_sn2201 = platform_get_drvdata(pdev);
-
-	/* Unregister underlying drivers. */
-	nvsw_sn2201_config_exit(nvsw_sn2201);
-
-	/* Destroy SN2201 static I2C devices. */
-	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
-					   nvsw_sn2201->sn2201_devs,
-					   nvsw_sn2201->sn2201_devs_num);
-
-	i2c_put_adapter(nvsw_sn2201->cpld_devs->adapter);
-	nvsw_sn2201->cpld_devs->adapter = NULL;
-	/* Destroy main mux device. */
-	nvsw_sn2201_destroy_static_devices(nvsw_sn2201,
-					   nvsw_sn2201->main_mux_devs,
-					   nvsw_sn2201->main_mux_devs_num);
-
-	/* Unregister I2C controller. */
-	if (nvsw_sn2201->pdev_i2c)
-		platform_device_unregister(nvsw_sn2201->pdev_i2c);
-
-	return 0;
-}
-
-static const struct acpi_device_id nvsw_sn2201_acpi_ids[] = {
-	{"NVSN2201", 0},
-	{}
-};
-
-MODULE_DEVICE_TABLE(acpi, nvsw_sn2201_acpi_ids);
-
-static struct platform_driver nvsw_sn2201_driver = {
-	.probe = nvsw_sn2201_probe,
-	.remove = nvsw_sn2201_remove,
-	.driver = {
-		.name = "nvsw-sn2201",
-	.acpi_match_table = nvsw_sn2201_acpi_ids,
-	},
-};
-
-module_platform_driver(nvsw_sn2201_driver);
-
-MODULE_AUTHOR("Nvidia");
-MODULE_DESCRIPTION("Nvidia sn2201 platform driver");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_ALIAS("platform:nvsw-sn2201");
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
+Date:		June 2018
+KernelVersion:	4.19
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file shows ASIC health status. The possible values are:
+		0 - health failed, 2 - health OK, 3 - ASIC in booting state.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
+Date:		June 2018
+KernelVersion:	4.19
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show with which CPLD versions have been burned
+		on carrier and switch boards.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
+Date:		December 2018
+KernelVersion:	5.0
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file shows the system fans direction:
+		forward direction - relevant bit is set 0;
+		reversed direction - relevant bit is set 1.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
+Date:		November 2018
+KernelVersion:	5.0
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show with which CPLD versions have been burned
+		on LED or Gearbox board.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
+Date:		November 2018
+KernelVersion:	5.0
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files enable and disable the access to the JTAG domain.
+		By default access to the JTAG domain is disabled.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
+Date:		June 2018
+KernelVersion:	4.19
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file allows iio devices selection.
+
+		Attribute select_iio can be written with 0 or with 1. It
+		selects which one of iio devices can be accessed.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
+		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu2_on
+		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle
+		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
+Date:		June 2018
+KernelVersion:	4.19
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files allow asserting system power cycling, switching
+		power supply units on and off and system's main power domain
+		shutdown.
+		Expected behavior:
+		When pwr_cycle is written 1: auxiliary power domain will go
+		down and after short period (about 1 second) up.
+		When  psu1_on or psu2_on is written 1, related unit will be
+		disconnected from the power source, when written 0 - connected.
+		If both are written 1 - power supplies main power domain will
+		go down.
+		When pwr_down is written 1, system's main power domain will go
+		down.
+
+		The files are write only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_aux_pwr_or_ref
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_asic_thermal
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_halt
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_hotswap_or_wd
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_fw_reset
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pb
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_main_pwr_fail
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_short_pb
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_reset
+Date:		June 2018
+KernelVersion:	4.19
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show the system reset cause, as following: power
+		auxiliary outage or power refresh, ASIC thermal shutdown, halt,
+		hotswap, watchdog, firmware reset, long press power button,
+		short press power button, software reset. Value 1 in file means
+		this is reset cause, 0 - otherwise. Only one of the above
+		causes could be 1 at the same time, representing only last
+		reset cause.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_pwr_fail
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_comex
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
+Date:		November 2018
+KernelVersion:	5.0
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show the system reset cause, as following: ComEx
+		power fail, reset from ComEx, system platform reset, reset
+		due to voltage monitor devices upgrade failure,
+		Value 1 in file means this is reset cause, 0 - otherwise.
+		Only one bit could be 1 at the same time, representing only
+		the last reset cause.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
+Date:		November 2018
+KernelVersion:	5.0
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show with which CPLD versions have been burned
+		on LED board.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
+Date:		June 2019
+KernelVersion:	5.3
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show the system reset cause, as following:
+		COMEX thermal shutdown; wathchdog power off or reset was derived
+		by one of the next components: COMEX, switch board or by Small Form
+		Factor mezzanine, reset requested from ASIC, reset caused by BIOS
+		reload. Value 1 in file means this is reset cause, 0 - otherwise.
+		Only one of the above causes could be 1 at the same time, representing
+		only last reset cause.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
+Date:		January 2020
+KernelVersion:	5.6
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show system static topology identification
+		like system's static I2C topology, number and type of FPGA
+		devices within the system and so on.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_ac_pwr_fail
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_platform
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off
+Date:		January 2020
+KernelVersion:	5.6
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show the system reset causes, as following: reset
+		due to AC power failure, reset invoked from software by
+		assertion reset signal through CPLD. reset caused by signal
+		asserted by SOC through ACPI register, reset invoked from
+		software by assertion power off signal through CPLD.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
+Date:		January 2020
+KernelVersion:	5.6
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file allows to retain ASIC up during PCIe root complex
+		reset, when attribute is set 1.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
+Date:		January 2020
+KernelVersion:	5.6
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file allows to overwrite system VPD hardware write
+		protection when attribute is set 1.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
+Date:		January 2020
+KernelVersion:	5.6
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file exposes the configuration update status of burnable
+		voltage regulator devices. The status values are as following:
+		0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
+
+		The file is read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
+Date:		January 2020
+KernelVersion:	5.6
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	This file exposes the firmware version of burnable voltage
+		regulator devices.
+
+		The file is read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_pn
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_pn
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_pn
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_pn
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version_min
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version_min
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version_min
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version_min
+Date:		July 2020
+KernelVersion:	5.9
+Contact:	Vadim Pasternak <vadimpmellanox.com>
+Description:	These files show with which CPLD part numbers and minor
+		versions have been burned CPLD devices equipped on a
+		system.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/bios_active_image
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/bios_auth_fail
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/bios_upgrade_fail
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	The files represent BIOS statuses:
+
+		bios_active_image: location of current active BIOS image:
+		0: Top, 1: Bottom.
+		The reported value should correspond to value expected by OS
+		in case of BIOS safe mode is 0. This bit is related to Intel
+		top-swap feature of DualBios on the same flash.
+
+		bios_auth_fail: BIOS upgrade is failed because provided BIOS
+		image is not signed correctly.
+
+		bios_upgrade_fail: BIOS upgrade is failed by some other
+		reason not because authentication. For example due to
+		physical SPI flash problem.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc1_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc2_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc3_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc4_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc5_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc6_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc7_enable
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc8_enable
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files allow line cards enable state control.
+		Expected behavior:
+		When  lc{n}_enable is written 1, related line card is released
+		from the reset state, when 0 - is hold in reset state.
+
+		The files are read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc1_pwr
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc2_pwr
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc3_pwr
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc4_pwr
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc5_pwr
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc6_pwr
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc7_pwr
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc8_pwr
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files switching line cards power on and off.
+		Expected behavior:
+		When  lc{n}_pwr is written 1, related line card is powered
+		on, when written 0 - powered off.
+
+		The files are read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc1_rst_mask
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc2_rst_mask
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc3_rst_mask
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc4_rst_mask
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc5_rst_mask
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc6_rst_mask
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc7_rst_mask
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lc8_rst_mask
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files clear line card reset bit enforced by ASIC, when it
+		sets it due to some abnormal ASIC behavior.
+		Expected behavior:
+		When lc{n}_rst_mask is written 1, related line card reset bit
+		is cleared, when written 0 - no effect.
+
+		The files are write only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/os_started
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	This file, when written 1, indicates to programmable devices
+		that OS is taking control over it.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pm_mgmt_en
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	This file assigns power management control ownership.
+		When power management control is provided by hardware, hardware
+		will automatically power off one or more line previously
+		powered line cards in case system power budget is getting
+		insufficient. It could be in case when some of power units lost
+		power good state.
+		When pm_mgmt_en is written 1, power management control by
+		software is enabled, 0 - power management control by hardware.
+		Note that for any setting of pm_mgmt_en attribute hardware will
+		not allow to power on any new line card in case system power
+		budget is insufficient.
+		Same in case software will try to power on several line cards
+		at once - hardware will power line cards while system has
+		enough power budget.
+		Default is 0.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu3_on
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu4_on
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files switching power supply units on and off.
+		Expected behavior:
+		When  psu3_on or psu4_on is written 1, related unit will be
+		disconnected from the power source, when written 0 - connected.
+
+		The files are write only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/shutdown_unlock
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	This file allows to unlock ASIC after thermal shutdown event.
+		When system thermal shutdown is enforced by ASIC, ASIC is
+		getting locked and after system boot it will not be available.
+		Software can decide to unlock it by setting this attribute to
+		1 and then perform system power cycle by setting pwr_cycle
+		attribute to 1 (power cycle of main power domain).
+		Before setting shutdown_unlock to 1 it is recommended to
+		validate that system reboot cause is reset_asic_thermal or
+		reset_thermal_spc_or_pciesw.
+		In case shutdown_unlock is not set 1, the only way to release
+		ASIC from locking - is full system power cycle through the
+		external power distribution unit.
+		Default is 1.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_pn
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld1_version_min
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files show with which CPLD major and minor versions
+		and part number has been burned CPLD device on line card.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_pn
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga1_version_min
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files show with which FPGA major and minor versions
+		and part number has been burned FPGA device on line card.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/vpd_wp
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	This file allow to overwrite line card VPD hardware write
+		protection mode. When attribute is set 1 - write protection is
+		disabled, when 0 - enabled.
+		Default is 0.
+		If the system is in locked-down mode writing this file will not
+		be allowed.
+		The purpose if this file is to allow line card VPD burning
+		during production flow.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_aux_pwr_or_ref
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_dc_dc_pwr_fail
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_fpga_not_done
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_from_chassis
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_line_card
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/reset_pwr_off_from_chassis
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files show the line reset cause, as following: power
+		auxiliary outage or power refresh, DC-to-DC power failure, FPGA reset
+		failed, line card reset failed, power off from chassis.
+		Value 1 in file means this is reset cause, 0 - otherwise. Only one of
+		the above causes could be 1 at the same time, representing only last
+		reset cause.
+
+		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/cpld_upgrade_en
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_upgrade_en
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files allow CPLD and FPGA burning. Value 1 in file means burning
+		is enabled, 0 - otherwise.
+		If the system is in locked-down mode writing these files will
+		not be allowed.
+		The purpose of these files to allow line card CPLD and FPGA
+		upgrade through the JTAG daisy-chain.
+
+		The files are read/write.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/qsfp_pwr_en
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/pwr_en
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files allow to power on/off all QSFP ports and whole line card.
+		The attributes are set 1 for power on, 0 - for power off.
+
+		The files are read/write.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/agb_spi_burn_en
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/fpga_spi_burn_en
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files allow gearboxes and FPGA SPI flash burning.
+		The attributes are set 1 to enable burning, 0 - to disable.
+		If the system is in locked-down mode writing these files will
+		not be allowed.
+		The purpose of these files to allow line card Gearboxes and FPGA
+		burning during production flow.
+
+		The file is read/write.
+
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/max_power
+What:		/sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/i2c-*/*-0032/mlxreg-io.*/hwmon/hwmon*/config
+Date:		October 2021
+KernelVersion:	5.16
+Contact:	Vadim Pasternak <[e-mail]>
+Description:	These files provide the maximum powered required for line card
+		feeding and line card configuration Id.
+
+		The files are read only.
+
+What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/phy_reset
+Date:           May 2022
+KernelVersion:  5.19
+Contact:        Vadim Pasternak <vadimpmellanox.com>
+Description:    This file allows to reset PHY 88E1548 when attribute is set 0
+                due to some abnormal PHY behavior.
+                Expected behavior:
+                When phy_reset is written 1, all PHY 88E1548 are released
+                from the reset state, when 0 - are hold in reset state.
+
+                The files are read/write.
+
+What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/mac_reset
+Date:           May 2022
+KernelVersion:  5.19
+Contact:        Vadim Pasternak <vadimpmellanox.com>
+Description:    This file allows to reset ASIC MT52132 when attribute is set 0
+                due to some abnormal ASIC behavior.
+                Expected behavior:
+                When mac_reset is written 1, the ASIC MT52132 is released
+                from the reset state, when 0 - is hold in reset state.
+
+                The files are read/write.
+
+What:           /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/qsfp_pwr_good
+Date:           May 2022
+KernelVersion:  5.19
+Contact:        Vadim Pasternak <vadimpmellanox.com>
+Description:    This file shows QSFP ports power status. The value is set to 0
+                when one of any QSFP ports is plugged. The value is set to 1 when
+                there are no any QSFP ports are plugged.
+                The possible values are:
+                0 - Power good, 1 - Not power good.
+
+                The files are read only.