| Message ID | 1495197739-17446-2-git-send-email-j-keerthy@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 05/19/2017 07:42 AM, Keerthy wrote: > The LP87565 chip is a power management IC for Portable Navigation Systems > and Tablet Computing devices. It contains the following components: > > - Configurable Bucks(Single and multi-phase). > - Configurable General Purpose Output Signals (GPO). > > The LP87565-Q1 variant device uses two 2-phase outputs configuration, > Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 > output. > > Signed-off-by: Keerthy <j-keerthy@ti.com> > --- > Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ > drivers/mfd/Kconfig | 14 ++ > drivers/mfd/Makefile | 1 + > drivers/mfd/lp87565.c | 103 ++++++++ > include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ > 5 files changed, 437 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt > create mode 100644 drivers/mfd/lp87565.c > create mode 100644 include/linux/mfd/lp87565.h > > diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt > new file mode 100644 > index 0000000..38a00a1 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt > @@ -0,0 +1,44 @@ > +TI LP873565 PMIC MFD driver > + > +Required properties: > + - compatible: "ti,lp87565", "ti,lp87565-q1" The of_device_id table in the driver only seems to match for "ti,lp87565-q1", not "ti,lp87565". > + - reg: I2C slave address. > + - gpio-controller: Marks the device node as a GPIO Controller. > + - #gpio-cells: Should be two. The first cell is the pin number and > + the second cell is used to specify flags. > + See ../gpio/gpio.txt for more information. > + - xxx-in-supply: Phandle to parent supply node of each regulator > + populated under regulators node. xxx should match > + the supply_name populated in driver. > + - regulators: List of child nodes that specify the regulator > + initialization data. > +Example: > + > +lp87565: lp87565@60 { pmic: lp87565@60 { Is more standard. > + compatible = "ti,lp87565-q1"; > + reg = <0x60>; > + gpio-controller; > + #gpio-cells = <2>; > + > + buck10-in-supply =<&vsys_3v3>; > + buck23-in-supply =<&vsys_3v3>; > + regulators: regulators { > + buck10_reg: buck10 { > + /*VDD_MPU*/ > + regulator-name = "buck10"; > + regulator-min-microvolt = <850000>; > + regulator-max-microvolt = <1250000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + buck23_reg: buck23 { > + /* VDD_GPU*/ > + regulator-name = "buck23"; > + regulator-min-microvolt = <850000>; > + regulator-max-microvolt = <1250000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + }; > +}; > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 3eb5c93..5e884f3 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X > This driver can also be built as a module. If so, the module > will be called lp873x. > > +config MFD_TI_LP87565 > + tristate "TI LP87565 Power Management IC" > + depends on I2C > + select MFD_CORE > + select REGMAP_I2C > + help > + If you say yes here then you get support for the LP87565 series of > + Power Management Integrated Circuits (PMIC). > + These include voltage regulators, thermal protection, configurable > + General Purpose Outputs (GPO) that are used in portable devices. > + > + This driver can also be built as a module. If so, the module > + will be called lp87565. > + > config MFD_TPS65218 > tristate "TI TPS65218 Power Management chips" > depends on I2C > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index c16bf1e..7edbe1b 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o > obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o > > obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o > +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o > > obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o > obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o > diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c > new file mode 100644 > index 0000000..dff882f > --- /dev/null > +++ b/drivers/mfd/lp87565.c > @@ -0,0 +1,103 @@ > +/* > + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ > + * > + * Author: Keerthy <j-keerthy@ti.com> > + * > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation version 2. > + * > + * This program is distributed "as is" WITHOUT ANY WARRANTY of any > + * kind, whether express or implied; without even the implied warranty > + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#include <linux/interrupt.h> > +#include <linux/mfd/core.h> > +#include <linux/module.h> > +#include <linux/of_device.h> > +#include <linux/regmap.h> > + > +#include <linux/mfd/lp87565.h> > + > +static const struct regmap_config lp87565_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = LP87565_REG_MAX, > +}; > + > +static const struct mfd_cell lp87565_cells[] = { > + { .name = "lp87565-q1-regulator", }, > + { .name = "lp87565-q1-gpio", }, > +}; > + > +static const struct of_device_id of_lp87565_match_table[] = { > + { > + .compatible = "ti,lp87565-q1", > + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, > + }, > + {} > +}; > +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); > + > +static int lp87565_probe(struct i2c_client *client, > + const struct i2c_device_id *ids) > +{ > + struct lp87565 *lp87565; > + const struct of_device_id *of_id; > + int ret; > + unsigned int otpid; > + > + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); > + if (!lp87565) > + return -ENOMEM; > + > + lp87565->dev = &client->dev; > + > + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); > + if (IS_ERR(lp87565->regmap)) { > + ret = PTR_ERR(lp87565->regmap); > + dev_err(lp87565->dev, > + "Failed to initialize register map: %d\n", ret); > + return ret; > + } > + > + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); > + if (ret) { > + dev_err(lp87565->dev, "Failed to read OTP ID\n"); > + return ret; > + } > + > + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; > + of_id = of_match_device(of_lp87565_match_table, &client->dev); > + if (of_id) > + lp87565->dev_type = (enum lp87565_device_type)of_id->data; > + > + i2c_set_clientdata(client, lp87565); > + > + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, > + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); > + > + return ret; > +} > + > +static const struct i2c_device_id lp87565_id_table[] = { > + { "lp87565-q1", 0 }, > + { }, > +}; > +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); > + > +static struct i2c_driver lp87565_driver = { > + .driver = { > + .name = "lp87565", > + .of_match_table = of_lp87565_match_table, > + }, > + .probe = lp87565_probe, > + .id_table = lp87565_id_table, > +}; > +module_i2c_driver(lp87565_driver); > + > +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); > +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h > new file mode 100644 > index 0000000..6112365 > --- /dev/null > +++ b/include/linux/mfd/lp87565.h > @@ -0,0 +1,275 @@ > +/* > + * Functions to access LP87565 power management chip. > + * > + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ > + * > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation version 2. > + * > + * This program is distributed "as is" WITHOUT ANY WARRANTY of any > + * kind, whether express or implied; without even the implied warranty > + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef __LINUX_MFD_LP87565_H > +#define __LINUX_MFD_LP87565_H > + > +#include <linux/i2c.h> > +#include <linux/regulator/driver.h> > +#include <linux/regulator/machine.h> > + > +enum lp87565_device_type { > + LP87565_DEVICE_TYPE_UNKNOWN = 0, > + LP87565_DEVICE_TYPE_LP87565_Q1, > +}; > + > +/* All register addresses */ > +#define LP87565_REG_DEV_REV 0X00 > +#define LP87565_REG_OTP_REV 0X01 > +#define LP87565_REG_BUCK0_CTRL_1 0X02 > +#define LP87565_REG_BUCK0_CTRL_2 0X03 > + > +#define LP87565_REG_BUCK1_CTRL_1 0X04 > +#define LP87565_REG_BUCK1_CTRL_2 0X05 > + > +#define LP87565_REG_BUCK2_CTRL_1 0X06 > +#define LP87565_REG_BUCK2_CTRL_2 0X07 > + > +#define LP87565_REG_BUCK3_CTRL_1 0X08 > +#define LP87565_REG_BUCK3_CTRL_2 0X09 > + > +#define LP87565_REG_BUCK0_VOUT 0X0A > +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B > + > +#define LP87565_REG_BUCK1_VOUT 0X0C > +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D > + > +#define LP87565_REG_BUCK2_VOUT 0X0E > +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F > + > +#define LP87565_REG_BUCK3_VOUT 0X10 > +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 > + > +#define LP87565_REG_BUCK0_DELAY 0X12 > +#define LP87565_REG_BUCK1_DELAY 0X13 > + > +#define LP87565_REG_BUCK2_DELAY 0X14 > +#define LP87565_REG_BUCK3_DELAY 0X15 > + > +#define LP87565_REG_GPO2_DELAY 0X16 > +#define LP87565_REG_GPO3_DELAY 0X17 > +#define LP87565_REG_RESET 0X18 > +#define LP87565_REG_CONFIG 0X19 > + > +#define LP87565_REG_INT_TOP_1 0X1A > +#define LP87565_REG_INT_TOP_2 0X1B > + > +#define LP87565_REG_INT_BUCK_0_1 0X1C > +#define LP87565_REG_INT_BUCK_2_3 0X1D > +#define LP87565_REG_TOP_STAT 0X1E > +#define LP87565_REG_BUCK_0_1_STAT 0X1F > +#define LP87565_REG_BUCK_2_3_STAT 0x20 > + > +#define LP87565_REG_TOP_MASK_1 0x21 > +#define LP87565_REG_TOP_MASK_2 0x22 > + > +#define LP87565_REG_BUCK_0_1_MASK 0x23 > +#define LP87565_REG_BUCK_2_3_MASK 0x24 > +#define LP87565_REG_SEL_I_LOAD 0x25 > + > +#define LP87565_REG_I_LOAD_2 0x26 > +#define LP87565_REG_I_LOAD_1 0x27 > + > +#define LP87565_REG_PGOOD_CTRL1 0x28 > +#define LP87565_REG_PGOOD_CTRL2 0x29 > +#define LP87565_REG_PGOOD_FLT 0x2A > +#define LP87565_REG_PLL_CTRL 0x2B > +#define LP87565_REG_PIN_FUNCTION 0x2C > +#define LP87565_REG_GPIO_CONFIG 0x2D > +#define LP87565_REG_GPIO_IN 0x2E > +#define LP87565_REG_GPIO_OUT 0x2F > + > +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT > + > +/* Register field definitions */ > +#define LP87565_DEV_REV_DEV_ID 0xC0 > +#define LP87565_DEV_REV_ALL_LAYER 0x30 > +#define LP87565_DEV_REV_METAL_LAYER 0x0F > + > +#define LP87565_OTP_REV_OTP_ID 0xFF > + > +#define LP87565_BUCK_CTRL_1_EN BIT(7) > +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) > +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 > + > +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) > +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) > +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) > +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ > +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) > + > +#define LP87565_BUCK_CTRL_2_ILIM 0x38 > +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 > + > +#define LP87565_BUCK_VSET 0xFF > +#define LP87565_BUCK_FLOOR_VSET 0xFF > + > +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 > +#define LP87565_BUCK_STARTUP_DELAY 0x0F > + > +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 > +#define LP87565_GPIO_STARTUP_DELAY 0x0F > + > +#define LP87565_RESET_SW_RESET BIT(0) > + > +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) > +#define LP87565_CONFIG_CLKIN_PD BIT(6) > +#define LP87565_CONFIG_EN4_PD BIT(5) > +#define LP87565_CONFIG_EN3_PD BIT(4) > +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) > +#define LP87565_CONFIG_EN2_PD BIT(2) > +#define LP87565_CONFIG_EN1_PD BIT(1) > + > +#define LP87565_INT_GPIO BIT(7) > +#define LP87565_INT_BUCK23 BIT(6) > +#define LP87565_INT_BUCK01 BIT(5) > +#define LP87565_NO_SYNC_CLK BIT(4) > +#define LP87565_TDIE_SD BIT(3) > +#define LP87565_TDIE_WARN BIT(2) > +#define LP87565_INT_OVP BIT(1) > +#define LP87565_I_LOAD_READY BIT(0) > + > +#define LP87565_INT_TOP2_RESET_REG BIT(0) > + > +#define LP87565_BUCK1_PG_INT BIT(6) > +#define LP87565_BUCK1_SC_INT BIT(5) > +#define LP87565_BUCK1_ILIM_INT BIT(4) > +#define LP87565_BUCK0_PG_INT BIT(2) > +#define LP87565_BUCK0_SC_INT BIT(1) > +#define LP87565_BUCK0_ILIM_INT BIT(0) > + > +#define LP87565_BUCK3_PG_INT BIT(6) > +#define LP87565_BUCK3_SC_INT BIT(5) > +#define LP87565_BUCK3_ILIM_INT BIT(4) > +#define LP87565_BUCK2_PG_INT BIT(2) > +#define LP87565_BUCK2_SC_INT BIT(1) > +#define LP87565_BUCK2_ILIM_INT BIT(0) > + > +#define LP87565_SYNC_CLK_STAT BIT(4) > +#define LP87565_TDIE_SD_STAT BIT(3) > +#define LP87565_TDIE_WARN_STAT BIT(2) > +#define LP87565_OVP_STAT BIT(1) > + > +#define LP87565_BUCK1_STAT BIT(7) > +#define LP87565_BUCK1_PG_STAT BIT(6) > +#define LP87565_BUCK1_ILIM_STAT BIT(4) > +#define LP87565_BUCK0_STAT BIT(3) > +#define LP87565_BUCK0_PG_STAT BIT(2) > +#define LP87565_BUCK0_ILIM_STAT BIT(0) > + > +#define LP87565_BUCK3_STAT BIT(7) > +#define LP87565_BUCK3_PG_STAT BIT(6) > +#define LP87565_BUCK3_ILIM_STAT BIT(4) > +#define LP87565_BUCK2_STAT BIT(3) > +#define LP87565_BUCK2_PG_STAT BIT(2) > +#define LP87565_BUCK2_ILIM_STAT BIT(0) > + > +#define LPL87565_GPIO_MASK BIT(7) > +#define LPL87565_SYNC_CLK_MASK BIT(4) > +#define LPL87565_TDIE_WARN_MASK BIT(2) > +#define LPL87565_I_LOAD_READY_MASK BIT(0) > + > +#define LPL87565_RESET_REG_MASK BIT(0) > + > +#define LPL87565_BUCK1_PG_MASK BIT(6) > +#define LPL87565_BUCK1_ILIM_MASK BIT(4) > +#define LPL87565_BUCK0_PG_MASK BIT(2) > +#define LPL87565_BUCK0_ILIM_MASK BIT(0) > + > +#define LPL87565_BUCK3_PG_MASK BIT(6) > +#define LPL87565_BUCK3_ILIM_MASK BIT(4) > +#define LPL87565_BUCK2_PG_MASK BIT(2) > +#define LPL87565_BUCK2_ILIM_MASK BIT(0) > + > +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 > + > +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 > +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF > + > +#define LP87565_PG3_SEL 0xC0 > +#define LP87565_PG2_SEL 0x30 > +#define LP87565_PG1_SEL 0x0C > +#define LP87565_PG0_SEL 0x03 > + > +#define LP87565_HALF_DAY BIT(7) > +#define LP87565_EN_PG0_NINT BIT(6) > +#define LP87565_PGOOD_SET_DELAY BIT(5) > +#define LP87565_EN_PGFLT_STAT BIT(4) > +#define LP87565_PGOOD_WINDOW BIT(2) > +#define LP87565_PGOOD_OD BIT(1) > +#define LP87565_PGOOD_POL BIT(0) > + > +#define LP87565_PG3_FLT BIT(3) > +#define LP87565_PG2_FLT BIT(2) > +#define LP87565_PG1_FLT BIT(1) > +#define LP87565_PG0_FLT BIT(0) > + > +#define LP87565_PLL_MODE 0xC0 > +#define LP87565_EXT_CLK_FREQ 0x1F > + > +#define LP87565_EN_SPREAD_SPEC BIT(7) > +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) > +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) > +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) > +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) > +#define LP87565_GPIO3_SEL BIT(2) > +#define LP87565_GPIO2_SEL BIT(1) > +#define LP87565_GPIO1_SEL BIT(0) > + > +#define LP87565_GOIO3_OD BIT(6) > +#define LP87565_GOIO2_OD BIT(5) > +#define LP87565_GOIO1_OD BIT(4) > +#define LP87565_GOIO3_DIR BIT(2) > +#define LP87565_GOIO2_DIR BIT(1) > +#define LP87565_GOIO1_DIR BIT(0) > + > +#define LP87565_GOIO3_IN BIT(2) > +#define LP87565_GOIO2_IN BIT(1) > +#define LP87565_GOIO1_IN BIT(0) > + > +#define LP87565_GOIO3_OUT BIT(2) > +#define LP87565_GOIO2_OUT BIT(1) > +#define LP87565_GOIO1_OUT BIT(0) > + > +/* Number of step-down converters available */ > +#define LP87565_NUM_BUCK 6 > + > +enum LP87565_regulator_id { > + /* BUCK's */ > + LP87565_BUCK_0, > + LP87565_BUCK_1, > + LP87565_BUCK_2, > + LP87565_BUCK_3, > + LP87565_BUCK_10, > + LP87565_BUCK_23, > +}; > + > +/** > + * struct LP87565 - state holder for the LP87565 driver > + * @dev: struct device pointer for MFD device > + * @rev: revision of the LP87565 > + * @dev_type: The device type for example lp87565-q1 > + * @lock: lock guarding the data structure > + * @regmap: register map of the LP87565 PMIC > + * > + * Device data may be used to access the LP87565 chip > + */ > +struct lp87565 { > + struct device *dev; > + u8 rev; > + u8 dev_type; > + struct regmap *regmap; > +}; > +#endif /* __LINUX_MFD_LP87565_H */ > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Friday 19 May 2017 09:12 PM, Andrew F. Davis wrote: > On 05/19/2017 07:42 AM, Keerthy wrote: >> The LP87565 chip is a power management IC for Portable Navigation Systems >> and Tablet Computing devices. It contains the following components: >> >> - Configurable Bucks(Single and multi-phase). >> - Configurable General Purpose Output Signals (GPO). >> >> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >> output. >> >> Signed-off-by: Keerthy <j-keerthy@ti.com> >> --- >> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >> drivers/mfd/Kconfig | 14 ++ >> drivers/mfd/Makefile | 1 + >> drivers/mfd/lp87565.c | 103 ++++++++ >> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >> 5 files changed, 437 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >> create mode 100644 drivers/mfd/lp87565.c >> create mode 100644 include/linux/mfd/lp87565.h >> >> diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt >> new file mode 100644 >> index 0000000..38a00a1 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt >> @@ -0,0 +1,44 @@ >> +TI LP873565 PMIC MFD driver >> + >> +Required properties: >> + - compatible: "ti,lp87565", "ti,lp87565-q1" > > The of_device_id table in the driver only seems to match for > "ti,lp87565-q1", not "ti,lp87565". I will add both. ti,lp87565 is the generic one and the ti,lp87565-q1 is a specific one with dual phase regulators. > >> + - reg: I2C slave address. >> + - gpio-controller: Marks the device node as a GPIO Controller. >> + - #gpio-cells: Should be two. The first cell is the pin number and >> + the second cell is used to specify flags. >> + See ../gpio/gpio.txt for more information. >> + - xxx-in-supply: Phandle to parent supply node of each regulator >> + populated under regulators node. xxx should match >> + the supply_name populated in driver. >> + - regulators: List of child nodes that specify the regulator >> + initialization data. >> +Example: >> + >> +lp87565: lp87565@60 { > > pmic: lp87565@60 { > > Is more standard. Sure. I will change that. Thanks for reviewing. > >> + compatible = "ti,lp87565-q1"; >> + reg = <0x60>; >> + gpio-controller; >> + #gpio-cells = <2>; >> + >> + buck10-in-supply =<&vsys_3v3>; >> + buck23-in-supply =<&vsys_3v3>; >> + regulators: regulators { >> + buck10_reg: buck10 { >> + /*VDD_MPU*/ >> + regulator-name = "buck10"; >> + regulator-min-microvolt = <850000>; >> + regulator-max-microvolt = <1250000>; >> + regulator-always-on; >> + regulator-boot-on; >> + }; >> + >> + buck23_reg: buck23 { >> + /* VDD_GPU*/ >> + regulator-name = "buck23"; >> + regulator-min-microvolt = <850000>; >> + regulator-max-microvolt = <1250000>; >> + regulator-boot-on; >> + regulator-always-on; >> + }; >> + }; >> +}; >> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig >> index 3eb5c93..5e884f3 100644 >> --- a/drivers/mfd/Kconfig >> +++ b/drivers/mfd/Kconfig >> @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X >> This driver can also be built as a module. If so, the module >> will be called lp873x. >> >> +config MFD_TI_LP87565 >> + tristate "TI LP87565 Power Management IC" >> + depends on I2C >> + select MFD_CORE >> + select REGMAP_I2C >> + help >> + If you say yes here then you get support for the LP87565 series of >> + Power Management Integrated Circuits (PMIC). >> + These include voltage regulators, thermal protection, configurable >> + General Purpose Outputs (GPO) that are used in portable devices. >> + >> + This driver can also be built as a module. If so, the module >> + will be called lp87565. >> + >> config MFD_TPS65218 >> tristate "TI TPS65218 Power Management chips" >> depends on I2C >> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile >> index c16bf1e..7edbe1b 100644 >> --- a/drivers/mfd/Makefile >> +++ b/drivers/mfd/Makefile >> @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o >> obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o >> >> obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o >> +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o >> >> obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o >> obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o >> diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c >> new file mode 100644 >> index 0000000..dff882f >> --- /dev/null >> +++ b/drivers/mfd/lp87565.c >> @@ -0,0 +1,103 @@ >> +/* >> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >> + * >> + * Author: Keerthy <j-keerthy@ti.com> >> + * >> + * This program is free software; you can redistribute it and/or >> + * modify it under the terms of the GNU General Public License as >> + * published by the Free Software Foundation version 2. >> + * >> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >> + * kind, whether express or implied; without even the implied warranty >> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> + * GNU General Public License for more details. >> + */ >> + >> +#include <linux/interrupt.h> >> +#include <linux/mfd/core.h> >> +#include <linux/module.h> >> +#include <linux/of_device.h> >> +#include <linux/regmap.h> >> + >> +#include <linux/mfd/lp87565.h> >> + >> +static const struct regmap_config lp87565_regmap_config = { >> + .reg_bits = 8, >> + .val_bits = 8, >> + .max_register = LP87565_REG_MAX, >> +}; >> + >> +static const struct mfd_cell lp87565_cells[] = { >> + { .name = "lp87565-q1-regulator", }, >> + { .name = "lp87565-q1-gpio", }, >> +}; >> + >> +static const struct of_device_id of_lp87565_match_table[] = { >> + { >> + .compatible = "ti,lp87565-q1", >> + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, >> + }, >> + {} >> +}; >> +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); >> + >> +static int lp87565_probe(struct i2c_client *client, >> + const struct i2c_device_id *ids) >> +{ >> + struct lp87565 *lp87565; >> + const struct of_device_id *of_id; >> + int ret; >> + unsigned int otpid; >> + >> + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); >> + if (!lp87565) >> + return -ENOMEM; >> + >> + lp87565->dev = &client->dev; >> + >> + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); >> + if (IS_ERR(lp87565->regmap)) { >> + ret = PTR_ERR(lp87565->regmap); >> + dev_err(lp87565->dev, >> + "Failed to initialize register map: %d\n", ret); >> + return ret; >> + } >> + >> + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); >> + if (ret) { >> + dev_err(lp87565->dev, "Failed to read OTP ID\n"); >> + return ret; >> + } >> + >> + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; >> + of_id = of_match_device(of_lp87565_match_table, &client->dev); >> + if (of_id) >> + lp87565->dev_type = (enum lp87565_device_type)of_id->data; >> + >> + i2c_set_clientdata(client, lp87565); >> + >> + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, >> + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); >> + >> + return ret; >> +} >> + >> +static const struct i2c_device_id lp87565_id_table[] = { >> + { "lp87565-q1", 0 }, >> + { }, >> +}; >> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >> + >> +static struct i2c_driver lp87565_driver = { >> + .driver = { >> + .name = "lp87565", >> + .of_match_table = of_lp87565_match_table, >> + }, >> + .probe = lp87565_probe, >> + .id_table = lp87565_id_table, >> +}; >> +module_i2c_driver(lp87565_driver); >> + >> +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); >> +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); >> +MODULE_LICENSE("GPL v2"); >> diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h >> new file mode 100644 >> index 0000000..6112365 >> --- /dev/null >> +++ b/include/linux/mfd/lp87565.h >> @@ -0,0 +1,275 @@ >> +/* >> + * Functions to access LP87565 power management chip. >> + * >> + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ >> + * >> + * This program is free software; you can redistribute it and/or >> + * modify it under the terms of the GNU General Public License as >> + * published by the Free Software Foundation version 2. >> + * >> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >> + * kind, whether express or implied; without even the implied warranty >> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> + * GNU General Public License for more details. >> + */ >> + >> +#ifndef __LINUX_MFD_LP87565_H >> +#define __LINUX_MFD_LP87565_H >> + >> +#include <linux/i2c.h> >> +#include <linux/regulator/driver.h> >> +#include <linux/regulator/machine.h> >> + >> +enum lp87565_device_type { >> + LP87565_DEVICE_TYPE_UNKNOWN = 0, >> + LP87565_DEVICE_TYPE_LP87565_Q1, >> +}; >> + >> +/* All register addresses */ >> +#define LP87565_REG_DEV_REV 0X00 >> +#define LP87565_REG_OTP_REV 0X01 >> +#define LP87565_REG_BUCK0_CTRL_1 0X02 >> +#define LP87565_REG_BUCK0_CTRL_2 0X03 >> + >> +#define LP87565_REG_BUCK1_CTRL_1 0X04 >> +#define LP87565_REG_BUCK1_CTRL_2 0X05 >> + >> +#define LP87565_REG_BUCK2_CTRL_1 0X06 >> +#define LP87565_REG_BUCK2_CTRL_2 0X07 >> + >> +#define LP87565_REG_BUCK3_CTRL_1 0X08 >> +#define LP87565_REG_BUCK3_CTRL_2 0X09 >> + >> +#define LP87565_REG_BUCK0_VOUT 0X0A >> +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B >> + >> +#define LP87565_REG_BUCK1_VOUT 0X0C >> +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D >> + >> +#define LP87565_REG_BUCK2_VOUT 0X0E >> +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F >> + >> +#define LP87565_REG_BUCK3_VOUT 0X10 >> +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 >> + >> +#define LP87565_REG_BUCK0_DELAY 0X12 >> +#define LP87565_REG_BUCK1_DELAY 0X13 >> + >> +#define LP87565_REG_BUCK2_DELAY 0X14 >> +#define LP87565_REG_BUCK3_DELAY 0X15 >> + >> +#define LP87565_REG_GPO2_DELAY 0X16 >> +#define LP87565_REG_GPO3_DELAY 0X17 >> +#define LP87565_REG_RESET 0X18 >> +#define LP87565_REG_CONFIG 0X19 >> + >> +#define LP87565_REG_INT_TOP_1 0X1A >> +#define LP87565_REG_INT_TOP_2 0X1B >> + >> +#define LP87565_REG_INT_BUCK_0_1 0X1C >> +#define LP87565_REG_INT_BUCK_2_3 0X1D >> +#define LP87565_REG_TOP_STAT 0X1E >> +#define LP87565_REG_BUCK_0_1_STAT 0X1F >> +#define LP87565_REG_BUCK_2_3_STAT 0x20 >> + >> +#define LP87565_REG_TOP_MASK_1 0x21 >> +#define LP87565_REG_TOP_MASK_2 0x22 >> + >> +#define LP87565_REG_BUCK_0_1_MASK 0x23 >> +#define LP87565_REG_BUCK_2_3_MASK 0x24 >> +#define LP87565_REG_SEL_I_LOAD 0x25 >> + >> +#define LP87565_REG_I_LOAD_2 0x26 >> +#define LP87565_REG_I_LOAD_1 0x27 >> + >> +#define LP87565_REG_PGOOD_CTRL1 0x28 >> +#define LP87565_REG_PGOOD_CTRL2 0x29 >> +#define LP87565_REG_PGOOD_FLT 0x2A >> +#define LP87565_REG_PLL_CTRL 0x2B >> +#define LP87565_REG_PIN_FUNCTION 0x2C >> +#define LP87565_REG_GPIO_CONFIG 0x2D >> +#define LP87565_REG_GPIO_IN 0x2E >> +#define LP87565_REG_GPIO_OUT 0x2F >> + >> +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT >> + >> +/* Register field definitions */ >> +#define LP87565_DEV_REV_DEV_ID 0xC0 >> +#define LP87565_DEV_REV_ALL_LAYER 0x30 >> +#define LP87565_DEV_REV_METAL_LAYER 0x0F >> + >> +#define LP87565_OTP_REV_OTP_ID 0xFF >> + >> +#define LP87565_BUCK_CTRL_1_EN BIT(7) >> +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) >> +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 >> + >> +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) >> +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) >> +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) >> +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ >> +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) >> + >> +#define LP87565_BUCK_CTRL_2_ILIM 0x38 >> +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 >> + >> +#define LP87565_BUCK_VSET 0xFF >> +#define LP87565_BUCK_FLOOR_VSET 0xFF >> + >> +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 >> +#define LP87565_BUCK_STARTUP_DELAY 0x0F >> + >> +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 >> +#define LP87565_GPIO_STARTUP_DELAY 0x0F >> + >> +#define LP87565_RESET_SW_RESET BIT(0) >> + >> +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) >> +#define LP87565_CONFIG_CLKIN_PD BIT(6) >> +#define LP87565_CONFIG_EN4_PD BIT(5) >> +#define LP87565_CONFIG_EN3_PD BIT(4) >> +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) >> +#define LP87565_CONFIG_EN2_PD BIT(2) >> +#define LP87565_CONFIG_EN1_PD BIT(1) >> + >> +#define LP87565_INT_GPIO BIT(7) >> +#define LP87565_INT_BUCK23 BIT(6) >> +#define LP87565_INT_BUCK01 BIT(5) >> +#define LP87565_NO_SYNC_CLK BIT(4) >> +#define LP87565_TDIE_SD BIT(3) >> +#define LP87565_TDIE_WARN BIT(2) >> +#define LP87565_INT_OVP BIT(1) >> +#define LP87565_I_LOAD_READY BIT(0) >> + >> +#define LP87565_INT_TOP2_RESET_REG BIT(0) >> + >> +#define LP87565_BUCK1_PG_INT BIT(6) >> +#define LP87565_BUCK1_SC_INT BIT(5) >> +#define LP87565_BUCK1_ILIM_INT BIT(4) >> +#define LP87565_BUCK0_PG_INT BIT(2) >> +#define LP87565_BUCK0_SC_INT BIT(1) >> +#define LP87565_BUCK0_ILIM_INT BIT(0) >> + >> +#define LP87565_BUCK3_PG_INT BIT(6) >> +#define LP87565_BUCK3_SC_INT BIT(5) >> +#define LP87565_BUCK3_ILIM_INT BIT(4) >> +#define LP87565_BUCK2_PG_INT BIT(2) >> +#define LP87565_BUCK2_SC_INT BIT(1) >> +#define LP87565_BUCK2_ILIM_INT BIT(0) >> + >> +#define LP87565_SYNC_CLK_STAT BIT(4) >> +#define LP87565_TDIE_SD_STAT BIT(3) >> +#define LP87565_TDIE_WARN_STAT BIT(2) >> +#define LP87565_OVP_STAT BIT(1) >> + >> +#define LP87565_BUCK1_STAT BIT(7) >> +#define LP87565_BUCK1_PG_STAT BIT(6) >> +#define LP87565_BUCK1_ILIM_STAT BIT(4) >> +#define LP87565_BUCK0_STAT BIT(3) >> +#define LP87565_BUCK0_PG_STAT BIT(2) >> +#define LP87565_BUCK0_ILIM_STAT BIT(0) >> + >> +#define LP87565_BUCK3_STAT BIT(7) >> +#define LP87565_BUCK3_PG_STAT BIT(6) >> +#define LP87565_BUCK3_ILIM_STAT BIT(4) >> +#define LP87565_BUCK2_STAT BIT(3) >> +#define LP87565_BUCK2_PG_STAT BIT(2) >> +#define LP87565_BUCK2_ILIM_STAT BIT(0) >> + >> +#define LPL87565_GPIO_MASK BIT(7) >> +#define LPL87565_SYNC_CLK_MASK BIT(4) >> +#define LPL87565_TDIE_WARN_MASK BIT(2) >> +#define LPL87565_I_LOAD_READY_MASK BIT(0) >> + >> +#define LPL87565_RESET_REG_MASK BIT(0) >> + >> +#define LPL87565_BUCK1_PG_MASK BIT(6) >> +#define LPL87565_BUCK1_ILIM_MASK BIT(4) >> +#define LPL87565_BUCK0_PG_MASK BIT(2) >> +#define LPL87565_BUCK0_ILIM_MASK BIT(0) >> + >> +#define LPL87565_BUCK3_PG_MASK BIT(6) >> +#define LPL87565_BUCK3_ILIM_MASK BIT(4) >> +#define LPL87565_BUCK2_PG_MASK BIT(2) >> +#define LPL87565_BUCK2_ILIM_MASK BIT(0) >> + >> +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 >> + >> +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 >> +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF >> + >> +#define LP87565_PG3_SEL 0xC0 >> +#define LP87565_PG2_SEL 0x30 >> +#define LP87565_PG1_SEL 0x0C >> +#define LP87565_PG0_SEL 0x03 >> + >> +#define LP87565_HALF_DAY BIT(7) >> +#define LP87565_EN_PG0_NINT BIT(6) >> +#define LP87565_PGOOD_SET_DELAY BIT(5) >> +#define LP87565_EN_PGFLT_STAT BIT(4) >> +#define LP87565_PGOOD_WINDOW BIT(2) >> +#define LP87565_PGOOD_OD BIT(1) >> +#define LP87565_PGOOD_POL BIT(0) >> + >> +#define LP87565_PG3_FLT BIT(3) >> +#define LP87565_PG2_FLT BIT(2) >> +#define LP87565_PG1_FLT BIT(1) >> +#define LP87565_PG0_FLT BIT(0) >> + >> +#define LP87565_PLL_MODE 0xC0 >> +#define LP87565_EXT_CLK_FREQ 0x1F >> + >> +#define LP87565_EN_SPREAD_SPEC BIT(7) >> +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) >> +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) >> +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) >> +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) >> +#define LP87565_GPIO3_SEL BIT(2) >> +#define LP87565_GPIO2_SEL BIT(1) >> +#define LP87565_GPIO1_SEL BIT(0) >> + >> +#define LP87565_GOIO3_OD BIT(6) >> +#define LP87565_GOIO2_OD BIT(5) >> +#define LP87565_GOIO1_OD BIT(4) >> +#define LP87565_GOIO3_DIR BIT(2) >> +#define LP87565_GOIO2_DIR BIT(1) >> +#define LP87565_GOIO1_DIR BIT(0) >> + >> +#define LP87565_GOIO3_IN BIT(2) >> +#define LP87565_GOIO2_IN BIT(1) >> +#define LP87565_GOIO1_IN BIT(0) >> + >> +#define LP87565_GOIO3_OUT BIT(2) >> +#define LP87565_GOIO2_OUT BIT(1) >> +#define LP87565_GOIO1_OUT BIT(0) >> + >> +/* Number of step-down converters available */ >> +#define LP87565_NUM_BUCK 6 >> + >> +enum LP87565_regulator_id { >> + /* BUCK's */ >> + LP87565_BUCK_0, >> + LP87565_BUCK_1, >> + LP87565_BUCK_2, >> + LP87565_BUCK_3, >> + LP87565_BUCK_10, >> + LP87565_BUCK_23, >> +}; >> + >> +/** >> + * struct LP87565 - state holder for the LP87565 driver >> + * @dev: struct device pointer for MFD device >> + * @rev: revision of the LP87565 >> + * @dev_type: The device type for example lp87565-q1 >> + * @lock: lock guarding the data structure >> + * @regmap: register map of the LP87565 PMIC >> + * >> + * Device data may be used to access the LP87565 chip >> + */ >> +struct lp87565 { >> + struct device *dev; >> + u8 rev; >> + u8 dev_type; >> + struct regmap *regmap; >> +}; >> +#endif /* __LINUX_MFD_LP87565_H */ >> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Fri, 19 May 2017, Keerthy wrote: > The LP87565 chip is a power management IC for Portable Navigation Systems > and Tablet Computing devices. It contains the following components: > > - Configurable Bucks(Single and multi-phase). > - Configurable General Purpose Output Signals (GPO). > > The LP87565-Q1 variant device uses two 2-phase outputs configuration, > Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 > output. > > Signed-off-by: Keerthy <j-keerthy@ti.com> > --- > Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ > drivers/mfd/Kconfig | 14 ++ > drivers/mfd/Makefile | 1 + > drivers/mfd/lp87565.c | 103 ++++++++ > include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ > 5 files changed, 437 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt > create mode 100644 drivers/mfd/lp87565.c > create mode 100644 include/linux/mfd/lp87565.h > > diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt > new file mode 100644 > index 0000000..38a00a1 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt > @@ -0,0 +1,44 @@ > +TI LP873565 PMIC MFD driver > + > +Required properties: > + - compatible: "ti,lp87565", "ti,lp87565-q1" > + - reg: I2C slave address. > + - gpio-controller: Marks the device node as a GPIO Controller. > + - #gpio-cells: Should be two. The first cell is the pin number and > + the second cell is used to specify flags. > + See ../gpio/gpio.txt for more information. > + - xxx-in-supply: Phandle to parent supply node of each regulator > + populated under regulators node. xxx should match > + the supply_name populated in driver. > + - regulators: List of child nodes that specify the regulator > + initialization data. > +Example: > + > +lp87565: lp87565@60 { > + compatible = "ti,lp87565-q1"; > + reg = <0x60>; > + gpio-controller; > + #gpio-cells = <2>; > + > + buck10-in-supply =<&vsys_3v3>; > + buck23-in-supply =<&vsys_3v3>; White space errors. '\n' here. > + regulators: regulators { > + buck10_reg: buck10 { > + /*VDD_MPU*/ Whitespace errors. > + regulator-name = "buck10"; > + regulator-min-microvolt = <850000>; > + regulator-max-microvolt = <1250000>; > + regulator-always-on; > + regulator-boot-on; > + }; > + > + buck23_reg: buck23 { > + /* VDD_GPU*/ Whitespace errors. > + regulator-name = "buck23"; > + regulator-min-microvolt = <850000>; > + regulator-max-microvolt = <1250000>; > + regulator-boot-on; > + regulator-always-on; > + }; > + }; > +}; > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 3eb5c93..5e884f3 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X > This driver can also be built as a module. If so, the module > will be called lp873x. > > +config MFD_TI_LP87565 > + tristate "TI LP87565 Power Management IC" > + depends on I2C > + select MFD_CORE > + select REGMAP_I2C > + help > + If you say yes here then you get support for the LP87565 series of > + Power Management Integrated Circuits (PMIC). > + These include voltage regulators, thermal protection, configurable > + General Purpose Outputs (GPO) that are used in portable devices. > + > + This driver can also be built as a module. If so, the module > + will be called lp87565. > + > config MFD_TPS65218 > tristate "TI TPS65218 Power Management chips" > depends on I2C > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index c16bf1e..7edbe1b 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o > obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o > > obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o > +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o > > obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o > obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o > diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c > new file mode 100644 > index 0000000..dff882f > --- /dev/null > +++ b/drivers/mfd/lp87565.c > @@ -0,0 +1,103 @@ > +/* > + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ > + * > + * Author: Keerthy <j-keerthy@ti.com> We usually ask for full "first last" names. > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation version 2. > + * > + * This program is distributed "as is" WITHOUT ANY WARRANTY of any > + * kind, whether express or implied; without even the implied warranty > + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. Can you use the short licence? > + */ > + > +#include <linux/interrupt.h> > +#include <linux/mfd/core.h> > +#include <linux/module.h> > +#include <linux/of_device.h> > +#include <linux/regmap.h> > + > +#include <linux/mfd/lp87565.h> > + > +static const struct regmap_config lp87565_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = LP87565_REG_MAX, > +}; > + > +static const struct mfd_cell lp87565_cells[] = { > + { .name = "lp87565-q1-regulator", }, > + { .name = "lp87565-q1-gpio", }, > +}; > + > +static const struct of_device_id of_lp87565_match_table[] = { > + { > + .compatible = "ti,lp87565-q1", > + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, > + }, > + {} > +}; > +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); > + > +static int lp87565_probe(struct i2c_client *client, > + const struct i2c_device_id *ids) > +{ > + struct lp87565 *lp87565; > + const struct of_device_id *of_id; > + int ret; > + unsigned int otpid; > + > + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); > + if (!lp87565) > + return -ENOMEM; > + > + lp87565->dev = &client->dev; > + > + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); > + if (IS_ERR(lp87565->regmap)) { > + ret = PTR_ERR(lp87565->regmap); > + dev_err(lp87565->dev, > + "Failed to initialize register map: %d\n", ret); > + return ret; > + } > + > + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); > + if (ret) { > + dev_err(lp87565->dev, "Failed to read OTP ID\n"); > + return ret; > + } > + > + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; '\n' here. > + of_id = of_match_device(of_lp87565_match_table, &client->dev); > + if (of_id) > + lp87565->dev_type = (enum lp87565_device_type)of_id->data; > + > + i2c_set_clientdata(client, lp87565); > + > + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, > + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); > + > + return ret; > +} > + > +static const struct i2c_device_id lp87565_id_table[] = { > + { "lp87565-q1", 0 }, > + { }, > +}; > +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); Is this an OF only driver, or not? > +static struct i2c_driver lp87565_driver = { > + .driver = { > + .name = "lp87565", > + .of_match_table = of_lp87565_match_table, > + }, > + .probe = lp87565_probe, > + .id_table = lp87565_id_table, > +}; > +module_i2c_driver(lp87565_driver); > + > +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); > +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h > new file mode 100644 > index 0000000..6112365 > --- /dev/null > +++ b/include/linux/mfd/lp87565.h > @@ -0,0 +1,275 @@ > +/* > + * Functions to access LP87565 power management chip. > + * > + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ Please update the Copyright. > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation version 2. > + * > + * This program is distributed "as is" WITHOUT ANY WARRANTY of any > + * kind, whether express or implied; without even the implied warranty > + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + */ > + > +#ifndef __LINUX_MFD_LP87565_H > +#define __LINUX_MFD_LP87565_H > + > +#include <linux/i2c.h> > +#include <linux/regulator/driver.h> > +#include <linux/regulator/machine.h> > + > +enum lp87565_device_type { > + LP87565_DEVICE_TYPE_UNKNOWN = 0, > + LP87565_DEVICE_TYPE_LP87565_Q1, > +}; > + > +/* All register addresses */ > +#define LP87565_REG_DEV_REV 0X00 > +#define LP87565_REG_OTP_REV 0X01 > +#define LP87565_REG_BUCK0_CTRL_1 0X02 > +#define LP87565_REG_BUCK0_CTRL_2 0X03 > + > +#define LP87565_REG_BUCK1_CTRL_1 0X04 > +#define LP87565_REG_BUCK1_CTRL_2 0X05 > + > +#define LP87565_REG_BUCK2_CTRL_1 0X06 > +#define LP87565_REG_BUCK2_CTRL_2 0X07 > + > +#define LP87565_REG_BUCK3_CTRL_1 0X08 > +#define LP87565_REG_BUCK3_CTRL_2 0X09 > + > +#define LP87565_REG_BUCK0_VOUT 0X0A > +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B > + > +#define LP87565_REG_BUCK1_VOUT 0X0C > +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D > + > +#define LP87565_REG_BUCK2_VOUT 0X0E > +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F > + > +#define LP87565_REG_BUCK3_VOUT 0X10 > +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 > + > +#define LP87565_REG_BUCK0_DELAY 0X12 > +#define LP87565_REG_BUCK1_DELAY 0X13 > + > +#define LP87565_REG_BUCK2_DELAY 0X14 > +#define LP87565_REG_BUCK3_DELAY 0X15 > + > +#define LP87565_REG_GPO2_DELAY 0X16 > +#define LP87565_REG_GPO3_DELAY 0X17 > +#define LP87565_REG_RESET 0X18 > +#define LP87565_REG_CONFIG 0X19 > + > +#define LP87565_REG_INT_TOP_1 0X1A > +#define LP87565_REG_INT_TOP_2 0X1B > + > +#define LP87565_REG_INT_BUCK_0_1 0X1C > +#define LP87565_REG_INT_BUCK_2_3 0X1D > +#define LP87565_REG_TOP_STAT 0X1E > +#define LP87565_REG_BUCK_0_1_STAT 0X1F > +#define LP87565_REG_BUCK_2_3_STAT 0x20 > + > +#define LP87565_REG_TOP_MASK_1 0x21 > +#define LP87565_REG_TOP_MASK_2 0x22 > + > +#define LP87565_REG_BUCK_0_1_MASK 0x23 > +#define LP87565_REG_BUCK_2_3_MASK 0x24 > +#define LP87565_REG_SEL_I_LOAD 0x25 > + > +#define LP87565_REG_I_LOAD_2 0x26 > +#define LP87565_REG_I_LOAD_1 0x27 > + > +#define LP87565_REG_PGOOD_CTRL1 0x28 > +#define LP87565_REG_PGOOD_CTRL2 0x29 > +#define LP87565_REG_PGOOD_FLT 0x2A > +#define LP87565_REG_PLL_CTRL 0x2B > +#define LP87565_REG_PIN_FUNCTION 0x2C > +#define LP87565_REG_GPIO_CONFIG 0x2D > +#define LP87565_REG_GPIO_IN 0x2E > +#define LP87565_REG_GPIO_OUT 0x2F > + > +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT > + > +/* Register field definitions */ > +#define LP87565_DEV_REV_DEV_ID 0xC0 > +#define LP87565_DEV_REV_ALL_LAYER 0x30 > +#define LP87565_DEV_REV_METAL_LAYER 0x0F > + > +#define LP87565_OTP_REV_OTP_ID 0xFF > + > +#define LP87565_BUCK_CTRL_1_EN BIT(7) > +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) > +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 > + > +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) > +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) > +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) > +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ > +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) > + > +#define LP87565_BUCK_CTRL_2_ILIM 0x38 > +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 > + > +#define LP87565_BUCK_VSET 0xFF > +#define LP87565_BUCK_FLOOR_VSET 0xFF > + > +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 > +#define LP87565_BUCK_STARTUP_DELAY 0x0F > + > +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 > +#define LP87565_GPIO_STARTUP_DELAY 0x0F > + > +#define LP87565_RESET_SW_RESET BIT(0) > + > +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) > +#define LP87565_CONFIG_CLKIN_PD BIT(6) > +#define LP87565_CONFIG_EN4_PD BIT(5) > +#define LP87565_CONFIG_EN3_PD BIT(4) > +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) > +#define LP87565_CONFIG_EN2_PD BIT(2) > +#define LP87565_CONFIG_EN1_PD BIT(1) > + > +#define LP87565_INT_GPIO BIT(7) > +#define LP87565_INT_BUCK23 BIT(6) > +#define LP87565_INT_BUCK01 BIT(5) > +#define LP87565_NO_SYNC_CLK BIT(4) > +#define LP87565_TDIE_SD BIT(3) > +#define LP87565_TDIE_WARN BIT(2) > +#define LP87565_INT_OVP BIT(1) > +#define LP87565_I_LOAD_READY BIT(0) > + > +#define LP87565_INT_TOP2_RESET_REG BIT(0) > + > +#define LP87565_BUCK1_PG_INT BIT(6) > +#define LP87565_BUCK1_SC_INT BIT(5) > +#define LP87565_BUCK1_ILIM_INT BIT(4) > +#define LP87565_BUCK0_PG_INT BIT(2) > +#define LP87565_BUCK0_SC_INT BIT(1) > +#define LP87565_BUCK0_ILIM_INT BIT(0) > + > +#define LP87565_BUCK3_PG_INT BIT(6) > +#define LP87565_BUCK3_SC_INT BIT(5) > +#define LP87565_BUCK3_ILIM_INT BIT(4) > +#define LP87565_BUCK2_PG_INT BIT(2) > +#define LP87565_BUCK2_SC_INT BIT(1) > +#define LP87565_BUCK2_ILIM_INT BIT(0) > + > +#define LP87565_SYNC_CLK_STAT BIT(4) > +#define LP87565_TDIE_SD_STAT BIT(3) > +#define LP87565_TDIE_WARN_STAT BIT(2) > +#define LP87565_OVP_STAT BIT(1) > + > +#define LP87565_BUCK1_STAT BIT(7) > +#define LP87565_BUCK1_PG_STAT BIT(6) > +#define LP87565_BUCK1_ILIM_STAT BIT(4) > +#define LP87565_BUCK0_STAT BIT(3) > +#define LP87565_BUCK0_PG_STAT BIT(2) > +#define LP87565_BUCK0_ILIM_STAT BIT(0) > + > +#define LP87565_BUCK3_STAT BIT(7) > +#define LP87565_BUCK3_PG_STAT BIT(6) > +#define LP87565_BUCK3_ILIM_STAT BIT(4) > +#define LP87565_BUCK2_STAT BIT(3) > +#define LP87565_BUCK2_PG_STAT BIT(2) > +#define LP87565_BUCK2_ILIM_STAT BIT(0) > + > +#define LPL87565_GPIO_MASK BIT(7) > +#define LPL87565_SYNC_CLK_MASK BIT(4) > +#define LPL87565_TDIE_WARN_MASK BIT(2) > +#define LPL87565_I_LOAD_READY_MASK BIT(0) > + > +#define LPL87565_RESET_REG_MASK BIT(0) > + > +#define LPL87565_BUCK1_PG_MASK BIT(6) > +#define LPL87565_BUCK1_ILIM_MASK BIT(4) > +#define LPL87565_BUCK0_PG_MASK BIT(2) > +#define LPL87565_BUCK0_ILIM_MASK BIT(0) > + > +#define LPL87565_BUCK3_PG_MASK BIT(6) > +#define LPL87565_BUCK3_ILIM_MASK BIT(4) > +#define LPL87565_BUCK2_PG_MASK BIT(2) > +#define LPL87565_BUCK2_ILIM_MASK BIT(0) > + > +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 > + > +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 > +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF > + > +#define LP87565_PG3_SEL 0xC0 > +#define LP87565_PG2_SEL 0x30 > +#define LP87565_PG1_SEL 0x0C > +#define LP87565_PG0_SEL 0x03 > + > +#define LP87565_HALF_DAY BIT(7) > +#define LP87565_EN_PG0_NINT BIT(6) > +#define LP87565_PGOOD_SET_DELAY BIT(5) > +#define LP87565_EN_PGFLT_STAT BIT(4) > +#define LP87565_PGOOD_WINDOW BIT(2) > +#define LP87565_PGOOD_OD BIT(1) > +#define LP87565_PGOOD_POL BIT(0) > + > +#define LP87565_PG3_FLT BIT(3) > +#define LP87565_PG2_FLT BIT(2) > +#define LP87565_PG1_FLT BIT(1) > +#define LP87565_PG0_FLT BIT(0) > + > +#define LP87565_PLL_MODE 0xC0 > +#define LP87565_EXT_CLK_FREQ 0x1F > + > +#define LP87565_EN_SPREAD_SPEC BIT(7) > +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) > +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) > +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) > +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) > +#define LP87565_GPIO3_SEL BIT(2) > +#define LP87565_GPIO2_SEL BIT(1) > +#define LP87565_GPIO1_SEL BIT(0) > + > +#define LP87565_GOIO3_OD BIT(6) > +#define LP87565_GOIO2_OD BIT(5) > +#define LP87565_GOIO1_OD BIT(4) > +#define LP87565_GOIO3_DIR BIT(2) > +#define LP87565_GOIO2_DIR BIT(1) > +#define LP87565_GOIO1_DIR BIT(0) > + > +#define LP87565_GOIO3_IN BIT(2) > +#define LP87565_GOIO2_IN BIT(1) > +#define LP87565_GOIO1_IN BIT(0) > + > +#define LP87565_GOIO3_OUT BIT(2) > +#define LP87565_GOIO2_OUT BIT(1) > +#define LP87565_GOIO1_OUT BIT(0) > + > +/* Number of step-down converters available */ > +#define LP87565_NUM_BUCK 6 > + > +enum LP87565_regulator_id { > + /* BUCK's */ > + LP87565_BUCK_0, > + LP87565_BUCK_1, > + LP87565_BUCK_2, > + LP87565_BUCK_3, > + LP87565_BUCK_10, > + LP87565_BUCK_23, > +}; > + > +/** > + * struct LP87565 - state holder for the LP87565 driver > + * @dev: struct device pointer for MFD device > + * @rev: revision of the LP87565 > + * @dev_type: The device type for example lp87565-q1 > + * @lock: lock guarding the data structure > + * @regmap: register map of the LP87565 PMIC > + * > + * Device data may be used to access the LP87565 chip > + */ > +struct lp87565 { > + struct device *dev; > + u8 rev; > + u8 dev_type; > + struct regmap *regmap; > +}; > +#endif /* __LINUX_MFD_LP87565_H */
On Monday 22 May 2017 11:18 PM, Lee Jones wrote: > On Fri, 19 May 2017, Keerthy wrote: > >> The LP87565 chip is a power management IC for Portable Navigation Systems >> and Tablet Computing devices. It contains the following components: >> >> - Configurable Bucks(Single and multi-phase). >> - Configurable General Purpose Output Signals (GPO). >> >> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >> output. >> >> Signed-off-by: Keerthy <j-keerthy@ti.com> >> --- >> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >> drivers/mfd/Kconfig | 14 ++ >> drivers/mfd/Makefile | 1 + >> drivers/mfd/lp87565.c | 103 ++++++++ >> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >> 5 files changed, 437 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >> create mode 100644 drivers/mfd/lp87565.c >> create mode 100644 include/linux/mfd/lp87565.h >> >> diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt >> new file mode 100644 >> index 0000000..38a00a1 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt >> @@ -0,0 +1,44 @@ >> +TI LP873565 PMIC MFD driver >> + >> +Required properties: >> + - compatible: "ti,lp87565", "ti,lp87565-q1" >> + - reg: I2C slave address. >> + - gpio-controller: Marks the device node as a GPIO Controller. >> + - #gpio-cells: Should be two. The first cell is the pin number and >> + the second cell is used to specify flags. >> + See ../gpio/gpio.txt for more information. >> + - xxx-in-supply: Phandle to parent supply node of each regulator >> + populated under regulators node. xxx should match >> + the supply_name populated in driver. >> + - regulators: List of child nodes that specify the regulator >> + initialization data. >> +Example: >> + >> +lp87565: lp87565@60 { >> + compatible = "ti,lp87565-q1"; >> + reg = <0x60>; >> + gpio-controller; >> + #gpio-cells = <2>; >> + >> + buck10-in-supply =<&vsys_3v3>; >> + buck23-in-supply =<&vsys_3v3>; > > White space errors. > > '\n' here. I will fix this. > >> + regulators: regulators { >> + buck10_reg: buck10 { >> + /*VDD_MPU*/ > > Whitespace errors. I will fix this. > >> + regulator-name = "buck10"; >> + regulator-min-microvolt = <850000>; >> + regulator-max-microvolt = <1250000>; >> + regulator-always-on; >> + regulator-boot-on; >> + }; >> + >> + buck23_reg: buck23 { >> + /* VDD_GPU*/ > > Whitespace errors. I will fix this. > >> + regulator-name = "buck23"; >> + regulator-min-microvolt = <850000>; >> + regulator-max-microvolt = <1250000>; >> + regulator-boot-on; >> + regulator-always-on; >> + }; >> + }; >> +}; >> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig >> index 3eb5c93..5e884f3 100644 >> --- a/drivers/mfd/Kconfig >> +++ b/drivers/mfd/Kconfig >> @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X >> This driver can also be built as a module. If so, the module >> will be called lp873x. >> >> +config MFD_TI_LP87565 >> + tristate "TI LP87565 Power Management IC" >> + depends on I2C >> + select MFD_CORE >> + select REGMAP_I2C >> + help >> + If you say yes here then you get support for the LP87565 series of >> + Power Management Integrated Circuits (PMIC). >> + These include voltage regulators, thermal protection, configurable >> + General Purpose Outputs (GPO) that are used in portable devices. >> + >> + This driver can also be built as a module. If so, the module >> + will be called lp87565. >> + >> config MFD_TPS65218 >> tristate "TI TPS65218 Power Management chips" >> depends on I2C >> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile >> index c16bf1e..7edbe1b 100644 >> --- a/drivers/mfd/Makefile >> +++ b/drivers/mfd/Makefile >> @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o >> obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o >> >> obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o >> +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o >> >> obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o >> obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o >> diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c >> new file mode 100644 >> index 0000000..dff882f >> --- /dev/null >> +++ b/drivers/mfd/lp87565.c >> @@ -0,0 +1,103 @@ >> +/* >> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >> + * >> + * Author: Keerthy <j-keerthy@ti.com> > > We usually ask for full "first last" names. Keerthy is my full name and i do not have a surname. > >> + * This program is free software; you can redistribute it and/or >> + * modify it under the terms of the GNU General Public License as >> + * published by the Free Software Foundation version 2. >> + * >> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >> + * kind, whether express or implied; without even the implied warranty >> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> + * GNU General Public License for more details. > > Can you use the short licence? Okay Sure. > >> + */ >> + >> +#include <linux/interrupt.h> >> +#include <linux/mfd/core.h> >> +#include <linux/module.h> >> +#include <linux/of_device.h> >> +#include <linux/regmap.h> >> + >> +#include <linux/mfd/lp87565.h> >> + >> +static const struct regmap_config lp87565_regmap_config = { >> + .reg_bits = 8, >> + .val_bits = 8, >> + .max_register = LP87565_REG_MAX, >> +}; >> + >> +static const struct mfd_cell lp87565_cells[] = { >> + { .name = "lp87565-q1-regulator", }, >> + { .name = "lp87565-q1-gpio", }, >> +}; >> + >> +static const struct of_device_id of_lp87565_match_table[] = { >> + { >> + .compatible = "ti,lp87565-q1", >> + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, >> + }, >> + {} >> +}; >> +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); >> + >> +static int lp87565_probe(struct i2c_client *client, >> + const struct i2c_device_id *ids) >> +{ >> + struct lp87565 *lp87565; >> + const struct of_device_id *of_id; >> + int ret; >> + unsigned int otpid; >> + >> + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); >> + if (!lp87565) >> + return -ENOMEM; >> + >> + lp87565->dev = &client->dev; >> + >> + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); >> + if (IS_ERR(lp87565->regmap)) { >> + ret = PTR_ERR(lp87565->regmap); >> + dev_err(lp87565->dev, >> + "Failed to initialize register map: %d\n", ret); >> + return ret; >> + } >> + >> + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); >> + if (ret) { >> + dev_err(lp87565->dev, "Failed to read OTP ID\n"); >> + return ret; >> + } >> + >> + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; > > '\n' here. Okay. > >> + of_id = of_match_device(of_lp87565_match_table, &client->dev); >> + if (of_id) >> + lp87565->dev_type = (enum lp87565_device_type)of_id->data; >> + >> + i2c_set_clientdata(client, lp87565); >> + >> + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, >> + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); >> + >> + return ret; >> +} >> + >> +static const struct i2c_device_id lp87565_id_table[] = { >> + { "lp87565-q1", 0 }, >> + { }, >> +}; >> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); > > Is this an OF only driver, or not? > >> +static struct i2c_driver lp87565_driver = { >> + .driver = { >> + .name = "lp87565", >> + .of_match_table = of_lp87565_match_table, >> + }, >> + .probe = lp87565_probe, >> + .id_table = lp87565_id_table, >> +}; >> +module_i2c_driver(lp87565_driver); >> + >> +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); >> +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); >> +MODULE_LICENSE("GPL v2"); >> diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h >> new file mode 100644 >> index 0000000..6112365 >> --- /dev/null >> +++ b/include/linux/mfd/lp87565.h >> @@ -0,0 +1,275 @@ >> +/* >> + * Functions to access LP87565 power management chip. >> + * >> + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ > > Please update the Copyright. Oops yes. Thanks for catching it. I will fix in v2. Thanks for reviewing it. > >> + * This program is free software; you can redistribute it and/or >> + * modify it under the terms of the GNU General Public License as >> + * published by the Free Software Foundation version 2. >> + * >> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >> + * kind, whether express or implied; without even the implied warranty >> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >> + * GNU General Public License for more details. >> + */ >> + >> +#ifndef __LINUX_MFD_LP87565_H >> +#define __LINUX_MFD_LP87565_H >> + >> +#include <linux/i2c.h> >> +#include <linux/regulator/driver.h> >> +#include <linux/regulator/machine.h> >> + >> +enum lp87565_device_type { >> + LP87565_DEVICE_TYPE_UNKNOWN = 0, >> + LP87565_DEVICE_TYPE_LP87565_Q1, >> +}; >> + >> +/* All register addresses */ >> +#define LP87565_REG_DEV_REV 0X00 >> +#define LP87565_REG_OTP_REV 0X01 >> +#define LP87565_REG_BUCK0_CTRL_1 0X02 >> +#define LP87565_REG_BUCK0_CTRL_2 0X03 >> + >> +#define LP87565_REG_BUCK1_CTRL_1 0X04 >> +#define LP87565_REG_BUCK1_CTRL_2 0X05 >> + >> +#define LP87565_REG_BUCK2_CTRL_1 0X06 >> +#define LP87565_REG_BUCK2_CTRL_2 0X07 >> + >> +#define LP87565_REG_BUCK3_CTRL_1 0X08 >> +#define LP87565_REG_BUCK3_CTRL_2 0X09 >> + >> +#define LP87565_REG_BUCK0_VOUT 0X0A >> +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B >> + >> +#define LP87565_REG_BUCK1_VOUT 0X0C >> +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D >> + >> +#define LP87565_REG_BUCK2_VOUT 0X0E >> +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F >> + >> +#define LP87565_REG_BUCK3_VOUT 0X10 >> +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 >> + >> +#define LP87565_REG_BUCK0_DELAY 0X12 >> +#define LP87565_REG_BUCK1_DELAY 0X13 >> + >> +#define LP87565_REG_BUCK2_DELAY 0X14 >> +#define LP87565_REG_BUCK3_DELAY 0X15 >> + >> +#define LP87565_REG_GPO2_DELAY 0X16 >> +#define LP87565_REG_GPO3_DELAY 0X17 >> +#define LP87565_REG_RESET 0X18 >> +#define LP87565_REG_CONFIG 0X19 >> + >> +#define LP87565_REG_INT_TOP_1 0X1A >> +#define LP87565_REG_INT_TOP_2 0X1B >> + >> +#define LP87565_REG_INT_BUCK_0_1 0X1C >> +#define LP87565_REG_INT_BUCK_2_3 0X1D >> +#define LP87565_REG_TOP_STAT 0X1E >> +#define LP87565_REG_BUCK_0_1_STAT 0X1F >> +#define LP87565_REG_BUCK_2_3_STAT 0x20 >> + >> +#define LP87565_REG_TOP_MASK_1 0x21 >> +#define LP87565_REG_TOP_MASK_2 0x22 >> + >> +#define LP87565_REG_BUCK_0_1_MASK 0x23 >> +#define LP87565_REG_BUCK_2_3_MASK 0x24 >> +#define LP87565_REG_SEL_I_LOAD 0x25 >> + >> +#define LP87565_REG_I_LOAD_2 0x26 >> +#define LP87565_REG_I_LOAD_1 0x27 >> + >> +#define LP87565_REG_PGOOD_CTRL1 0x28 >> +#define LP87565_REG_PGOOD_CTRL2 0x29 >> +#define LP87565_REG_PGOOD_FLT 0x2A >> +#define LP87565_REG_PLL_CTRL 0x2B >> +#define LP87565_REG_PIN_FUNCTION 0x2C >> +#define LP87565_REG_GPIO_CONFIG 0x2D >> +#define LP87565_REG_GPIO_IN 0x2E >> +#define LP87565_REG_GPIO_OUT 0x2F >> + >> +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT >> + >> +/* Register field definitions */ >> +#define LP87565_DEV_REV_DEV_ID 0xC0 >> +#define LP87565_DEV_REV_ALL_LAYER 0x30 >> +#define LP87565_DEV_REV_METAL_LAYER 0x0F >> + >> +#define LP87565_OTP_REV_OTP_ID 0xFF >> + >> +#define LP87565_BUCK_CTRL_1_EN BIT(7) >> +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) >> +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 >> + >> +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) >> +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) >> +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) >> +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ >> +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) >> + >> +#define LP87565_BUCK_CTRL_2_ILIM 0x38 >> +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 >> + >> +#define LP87565_BUCK_VSET 0xFF >> +#define LP87565_BUCK_FLOOR_VSET 0xFF >> + >> +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 >> +#define LP87565_BUCK_STARTUP_DELAY 0x0F >> + >> +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 >> +#define LP87565_GPIO_STARTUP_DELAY 0x0F >> + >> +#define LP87565_RESET_SW_RESET BIT(0) >> + >> +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) >> +#define LP87565_CONFIG_CLKIN_PD BIT(6) >> +#define LP87565_CONFIG_EN4_PD BIT(5) >> +#define LP87565_CONFIG_EN3_PD BIT(4) >> +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) >> +#define LP87565_CONFIG_EN2_PD BIT(2) >> +#define LP87565_CONFIG_EN1_PD BIT(1) >> + >> +#define LP87565_INT_GPIO BIT(7) >> +#define LP87565_INT_BUCK23 BIT(6) >> +#define LP87565_INT_BUCK01 BIT(5) >> +#define LP87565_NO_SYNC_CLK BIT(4) >> +#define LP87565_TDIE_SD BIT(3) >> +#define LP87565_TDIE_WARN BIT(2) >> +#define LP87565_INT_OVP BIT(1) >> +#define LP87565_I_LOAD_READY BIT(0) >> + >> +#define LP87565_INT_TOP2_RESET_REG BIT(0) >> + >> +#define LP87565_BUCK1_PG_INT BIT(6) >> +#define LP87565_BUCK1_SC_INT BIT(5) >> +#define LP87565_BUCK1_ILIM_INT BIT(4) >> +#define LP87565_BUCK0_PG_INT BIT(2) >> +#define LP87565_BUCK0_SC_INT BIT(1) >> +#define LP87565_BUCK0_ILIM_INT BIT(0) >> + >> +#define LP87565_BUCK3_PG_INT BIT(6) >> +#define LP87565_BUCK3_SC_INT BIT(5) >> +#define LP87565_BUCK3_ILIM_INT BIT(4) >> +#define LP87565_BUCK2_PG_INT BIT(2) >> +#define LP87565_BUCK2_SC_INT BIT(1) >> +#define LP87565_BUCK2_ILIM_INT BIT(0) >> + >> +#define LP87565_SYNC_CLK_STAT BIT(4) >> +#define LP87565_TDIE_SD_STAT BIT(3) >> +#define LP87565_TDIE_WARN_STAT BIT(2) >> +#define LP87565_OVP_STAT BIT(1) >> + >> +#define LP87565_BUCK1_STAT BIT(7) >> +#define LP87565_BUCK1_PG_STAT BIT(6) >> +#define LP87565_BUCK1_ILIM_STAT BIT(4) >> +#define LP87565_BUCK0_STAT BIT(3) >> +#define LP87565_BUCK0_PG_STAT BIT(2) >> +#define LP87565_BUCK0_ILIM_STAT BIT(0) >> + >> +#define LP87565_BUCK3_STAT BIT(7) >> +#define LP87565_BUCK3_PG_STAT BIT(6) >> +#define LP87565_BUCK3_ILIM_STAT BIT(4) >> +#define LP87565_BUCK2_STAT BIT(3) >> +#define LP87565_BUCK2_PG_STAT BIT(2) >> +#define LP87565_BUCK2_ILIM_STAT BIT(0) >> + >> +#define LPL87565_GPIO_MASK BIT(7) >> +#define LPL87565_SYNC_CLK_MASK BIT(4) >> +#define LPL87565_TDIE_WARN_MASK BIT(2) >> +#define LPL87565_I_LOAD_READY_MASK BIT(0) >> + >> +#define LPL87565_RESET_REG_MASK BIT(0) >> + >> +#define LPL87565_BUCK1_PG_MASK BIT(6) >> +#define LPL87565_BUCK1_ILIM_MASK BIT(4) >> +#define LPL87565_BUCK0_PG_MASK BIT(2) >> +#define LPL87565_BUCK0_ILIM_MASK BIT(0) >> + >> +#define LPL87565_BUCK3_PG_MASK BIT(6) >> +#define LPL87565_BUCK3_ILIM_MASK BIT(4) >> +#define LPL87565_BUCK2_PG_MASK BIT(2) >> +#define LPL87565_BUCK2_ILIM_MASK BIT(0) >> + >> +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 >> + >> +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 >> +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF >> + >> +#define LP87565_PG3_SEL 0xC0 >> +#define LP87565_PG2_SEL 0x30 >> +#define LP87565_PG1_SEL 0x0C >> +#define LP87565_PG0_SEL 0x03 >> + >> +#define LP87565_HALF_DAY BIT(7) >> +#define LP87565_EN_PG0_NINT BIT(6) >> +#define LP87565_PGOOD_SET_DELAY BIT(5) >> +#define LP87565_EN_PGFLT_STAT BIT(4) >> +#define LP87565_PGOOD_WINDOW BIT(2) >> +#define LP87565_PGOOD_OD BIT(1) >> +#define LP87565_PGOOD_POL BIT(0) >> + >> +#define LP87565_PG3_FLT BIT(3) >> +#define LP87565_PG2_FLT BIT(2) >> +#define LP87565_PG1_FLT BIT(1) >> +#define LP87565_PG0_FLT BIT(0) >> + >> +#define LP87565_PLL_MODE 0xC0 >> +#define LP87565_EXT_CLK_FREQ 0x1F >> + >> +#define LP87565_EN_SPREAD_SPEC BIT(7) >> +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) >> +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) >> +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) >> +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) >> +#define LP87565_GPIO3_SEL BIT(2) >> +#define LP87565_GPIO2_SEL BIT(1) >> +#define LP87565_GPIO1_SEL BIT(0) >> + >> +#define LP87565_GOIO3_OD BIT(6) >> +#define LP87565_GOIO2_OD BIT(5) >> +#define LP87565_GOIO1_OD BIT(4) >> +#define LP87565_GOIO3_DIR BIT(2) >> +#define LP87565_GOIO2_DIR BIT(1) >> +#define LP87565_GOIO1_DIR BIT(0) >> + >> +#define LP87565_GOIO3_IN BIT(2) >> +#define LP87565_GOIO2_IN BIT(1) >> +#define LP87565_GOIO1_IN BIT(0) >> + >> +#define LP87565_GOIO3_OUT BIT(2) >> +#define LP87565_GOIO2_OUT BIT(1) >> +#define LP87565_GOIO1_OUT BIT(0) >> + >> +/* Number of step-down converters available */ >> +#define LP87565_NUM_BUCK 6 >> + >> +enum LP87565_regulator_id { >> + /* BUCK's */ >> + LP87565_BUCK_0, >> + LP87565_BUCK_1, >> + LP87565_BUCK_2, >> + LP87565_BUCK_3, >> + LP87565_BUCK_10, >> + LP87565_BUCK_23, >> +}; >> + >> +/** >> + * struct LP87565 - state holder for the LP87565 driver >> + * @dev: struct device pointer for MFD device >> + * @rev: revision of the LP87565 >> + * @dev_type: The device type for example lp87565-q1 >> + * @lock: lock guarding the data structure >> + * @regmap: register map of the LP87565 PMIC >> + * >> + * Device data may be used to access the LP87565 chip >> + */ >> +struct lp87565 { >> + struct device *dev; >> + u8 rev; >> + u8 dev_type; >> + struct regmap *regmap; >> +}; >> +#endif /* __LINUX_MFD_LP87565_H */ > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tuesday 23 May 2017 08:05 AM, Keerthy wrote: > > > On Monday 22 May 2017 11:18 PM, Lee Jones wrote: >> On Fri, 19 May 2017, Keerthy wrote: >> >>> The LP87565 chip is a power management IC for Portable Navigation Systems >>> and Tablet Computing devices. It contains the following components: >>> >>> - Configurable Bucks(Single and multi-phase). >>> - Configurable General Purpose Output Signals (GPO). >>> >>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >>> output. >>> >>> Signed-off-by: Keerthy <j-keerthy@ti.com> >>> --- >>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >>> drivers/mfd/Kconfig | 14 ++ >>> drivers/mfd/Makefile | 1 + >>> drivers/mfd/lp87565.c | 103 ++++++++ >>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >>> 5 files changed, 437 insertions(+) >>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >>> create mode 100644 drivers/mfd/lp87565.c >>> create mode 100644 include/linux/mfd/lp87565.h >>> >>> diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt >>> new file mode 100644 >>> index 0000000..38a00a1 >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt >>> @@ -0,0 +1,44 @@ >>> +TI LP873565 PMIC MFD driver >>> + >>> +Required properties: >>> + - compatible: "ti,lp87565", "ti,lp87565-q1" >>> + - reg: I2C slave address. >>> + - gpio-controller: Marks the device node as a GPIO Controller. >>> + - #gpio-cells: Should be two. The first cell is the pin number and >>> + the second cell is used to specify flags. >>> + See ../gpio/gpio.txt for more information. >>> + - xxx-in-supply: Phandle to parent supply node of each regulator >>> + populated under regulators node. xxx should match >>> + the supply_name populated in driver. >>> + - regulators: List of child nodes that specify the regulator >>> + initialization data. >>> +Example: >>> + >>> +lp87565: lp87565@60 { >>> + compatible = "ti,lp87565-q1"; >>> + reg = <0x60>; >>> + gpio-controller; >>> + #gpio-cells = <2>; >>> + >>> + buck10-in-supply =<&vsys_3v3>; >>> + buck23-in-supply =<&vsys_3v3>; >> >> White space errors. >> >> '\n' here. > > I will fix this. > >> >>> + regulators: regulators { >>> + buck10_reg: buck10 { >>> + /*VDD_MPU*/ >> >> Whitespace errors. > > I will fix this. > >> >>> + regulator-name = "buck10"; >>> + regulator-min-microvolt = <850000>; >>> + regulator-max-microvolt = <1250000>; >>> + regulator-always-on; >>> + regulator-boot-on; >>> + }; >>> + >>> + buck23_reg: buck23 { >>> + /* VDD_GPU*/ >> >> Whitespace errors. > > I will fix this. > >> >>> + regulator-name = "buck23"; >>> + regulator-min-microvolt = <850000>; >>> + regulator-max-microvolt = <1250000>; >>> + regulator-boot-on; >>> + regulator-always-on; >>> + }; >>> + }; >>> +}; >>> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig >>> index 3eb5c93..5e884f3 100644 >>> --- a/drivers/mfd/Kconfig >>> +++ b/drivers/mfd/Kconfig >>> @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X >>> This driver can also be built as a module. If so, the module >>> will be called lp873x. >>> >>> +config MFD_TI_LP87565 >>> + tristate "TI LP87565 Power Management IC" >>> + depends on I2C >>> + select MFD_CORE >>> + select REGMAP_I2C >>> + help >>> + If you say yes here then you get support for the LP87565 series of >>> + Power Management Integrated Circuits (PMIC). >>> + These include voltage regulators, thermal protection, configurable >>> + General Purpose Outputs (GPO) that are used in portable devices. >>> + >>> + This driver can also be built as a module. If so, the module >>> + will be called lp87565. >>> + >>> config MFD_TPS65218 >>> tristate "TI TPS65218 Power Management chips" >>> depends on I2C >>> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile >>> index c16bf1e..7edbe1b 100644 >>> --- a/drivers/mfd/Makefile >>> +++ b/drivers/mfd/Makefile >>> @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o >>> obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o >>> >>> obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o >>> +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o >>> >>> obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o >>> obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o >>> diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c >>> new file mode 100644 >>> index 0000000..dff882f >>> --- /dev/null >>> +++ b/drivers/mfd/lp87565.c >>> @@ -0,0 +1,103 @@ >>> +/* >>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >>> + * >>> + * Author: Keerthy <j-keerthy@ti.com> >> >> We usually ask for full "first last" names. > > Keerthy is my full name and i do not have a surname. > >> >>> + * This program is free software; you can redistribute it and/or >>> + * modify it under the terms of the GNU General Public License as >>> + * published by the Free Software Foundation version 2. >>> + * >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >>> + * kind, whether express or implied; without even the implied warranty >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >>> + * GNU General Public License for more details. >> >> Can you use the short licence? > > Okay Sure. I hope the below is what you are looking for: "This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version." > >> >>> + */ >>> + >>> +#include <linux/interrupt.h> >>> +#include <linux/mfd/core.h> >>> +#include <linux/module.h> >>> +#include <linux/of_device.h> >>> +#include <linux/regmap.h> >>> + >>> +#include <linux/mfd/lp87565.h> >>> + >>> +static const struct regmap_config lp87565_regmap_config = { >>> + .reg_bits = 8, >>> + .val_bits = 8, >>> + .max_register = LP87565_REG_MAX, >>> +}; >>> + >>> +static const struct mfd_cell lp87565_cells[] = { >>> + { .name = "lp87565-q1-regulator", }, >>> + { .name = "lp87565-q1-gpio", }, >>> +}; >>> + >>> +static const struct of_device_id of_lp87565_match_table[] = { >>> + { >>> + .compatible = "ti,lp87565-q1", >>> + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, >>> + }, >>> + {} >>> +}; >>> +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); >>> + >>> +static int lp87565_probe(struct i2c_client *client, >>> + const struct i2c_device_id *ids) >>> +{ >>> + struct lp87565 *lp87565; >>> + const struct of_device_id *of_id; >>> + int ret; >>> + unsigned int otpid; >>> + >>> + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); >>> + if (!lp87565) >>> + return -ENOMEM; >>> + >>> + lp87565->dev = &client->dev; >>> + >>> + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); >>> + if (IS_ERR(lp87565->regmap)) { >>> + ret = PTR_ERR(lp87565->regmap); >>> + dev_err(lp87565->dev, >>> + "Failed to initialize register map: %d\n", ret); >>> + return ret; >>> + } >>> + >>> + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); >>> + if (ret) { >>> + dev_err(lp87565->dev, "Failed to read OTP ID\n"); >>> + return ret; >>> + } >>> + >>> + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; >> >> '\n' here. > > Okay. > >> >>> + of_id = of_match_device(of_lp87565_match_table, &client->dev); >>> + if (of_id) >>> + lp87565->dev_type = (enum lp87565_device_type)of_id->data; >>> + >>> + i2c_set_clientdata(client, lp87565); >>> + >>> + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, >>> + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); >>> + >>> + return ret; >>> +} >>> + >>> +static const struct i2c_device_id lp87565_id_table[] = { >>> + { "lp87565-q1", 0 }, >>> + { }, >>> +}; >>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >> >> Is this an OF only driver, or not? Yes OF only driver. >> >>> +static struct i2c_driver lp87565_driver = { >>> + .driver = { >>> + .name = "lp87565", >>> + .of_match_table = of_lp87565_match_table, >>> + }, >>> + .probe = lp87565_probe, >>> + .id_table = lp87565_id_table, >>> +}; >>> +module_i2c_driver(lp87565_driver); >>> + >>> +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); >>> +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); >>> +MODULE_LICENSE("GPL v2"); >>> diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h >>> new file mode 100644 >>> index 0000000..6112365 >>> --- /dev/null >>> +++ b/include/linux/mfd/lp87565.h >>> @@ -0,0 +1,275 @@ >>> +/* >>> + * Functions to access LP87565 power management chip. >>> + * >>> + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ >> >> Please update the Copyright. > > Oops yes. Thanks for catching it. I will fix in v2. > > Thanks for reviewing it. > >> >>> + * This program is free software; you can redistribute it and/or >>> + * modify it under the terms of the GNU General Public License as >>> + * published by the Free Software Foundation version 2. >>> + * >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >>> + * kind, whether express or implied; without even the implied warranty >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >>> + * GNU General Public License for more details. >>> + */ >>> + >>> +#ifndef __LINUX_MFD_LP87565_H >>> +#define __LINUX_MFD_LP87565_H >>> + >>> +#include <linux/i2c.h> >>> +#include <linux/regulator/driver.h> >>> +#include <linux/regulator/machine.h> >>> + >>> +enum lp87565_device_type { >>> + LP87565_DEVICE_TYPE_UNKNOWN = 0, >>> + LP87565_DEVICE_TYPE_LP87565_Q1, >>> +}; >>> + >>> +/* All register addresses */ >>> +#define LP87565_REG_DEV_REV 0X00 >>> +#define LP87565_REG_OTP_REV 0X01 >>> +#define LP87565_REG_BUCK0_CTRL_1 0X02 >>> +#define LP87565_REG_BUCK0_CTRL_2 0X03 >>> + >>> +#define LP87565_REG_BUCK1_CTRL_1 0X04 >>> +#define LP87565_REG_BUCK1_CTRL_2 0X05 >>> + >>> +#define LP87565_REG_BUCK2_CTRL_1 0X06 >>> +#define LP87565_REG_BUCK2_CTRL_2 0X07 >>> + >>> +#define LP87565_REG_BUCK3_CTRL_1 0X08 >>> +#define LP87565_REG_BUCK3_CTRL_2 0X09 >>> + >>> +#define LP87565_REG_BUCK0_VOUT 0X0A >>> +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B >>> + >>> +#define LP87565_REG_BUCK1_VOUT 0X0C >>> +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D >>> + >>> +#define LP87565_REG_BUCK2_VOUT 0X0E >>> +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F >>> + >>> +#define LP87565_REG_BUCK3_VOUT 0X10 >>> +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 >>> + >>> +#define LP87565_REG_BUCK0_DELAY 0X12 >>> +#define LP87565_REG_BUCK1_DELAY 0X13 >>> + >>> +#define LP87565_REG_BUCK2_DELAY 0X14 >>> +#define LP87565_REG_BUCK3_DELAY 0X15 >>> + >>> +#define LP87565_REG_GPO2_DELAY 0X16 >>> +#define LP87565_REG_GPO3_DELAY 0X17 >>> +#define LP87565_REG_RESET 0X18 >>> +#define LP87565_REG_CONFIG 0X19 >>> + >>> +#define LP87565_REG_INT_TOP_1 0X1A >>> +#define LP87565_REG_INT_TOP_2 0X1B >>> + >>> +#define LP87565_REG_INT_BUCK_0_1 0X1C >>> +#define LP87565_REG_INT_BUCK_2_3 0X1D >>> +#define LP87565_REG_TOP_STAT 0X1E >>> +#define LP87565_REG_BUCK_0_1_STAT 0X1F >>> +#define LP87565_REG_BUCK_2_3_STAT 0x20 >>> + >>> +#define LP87565_REG_TOP_MASK_1 0x21 >>> +#define LP87565_REG_TOP_MASK_2 0x22 >>> + >>> +#define LP87565_REG_BUCK_0_1_MASK 0x23 >>> +#define LP87565_REG_BUCK_2_3_MASK 0x24 >>> +#define LP87565_REG_SEL_I_LOAD 0x25 >>> + >>> +#define LP87565_REG_I_LOAD_2 0x26 >>> +#define LP87565_REG_I_LOAD_1 0x27 >>> + >>> +#define LP87565_REG_PGOOD_CTRL1 0x28 >>> +#define LP87565_REG_PGOOD_CTRL2 0x29 >>> +#define LP87565_REG_PGOOD_FLT 0x2A >>> +#define LP87565_REG_PLL_CTRL 0x2B >>> +#define LP87565_REG_PIN_FUNCTION 0x2C >>> +#define LP87565_REG_GPIO_CONFIG 0x2D >>> +#define LP87565_REG_GPIO_IN 0x2E >>> +#define LP87565_REG_GPIO_OUT 0x2F >>> + >>> +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT >>> + >>> +/* Register field definitions */ >>> +#define LP87565_DEV_REV_DEV_ID 0xC0 >>> +#define LP87565_DEV_REV_ALL_LAYER 0x30 >>> +#define LP87565_DEV_REV_METAL_LAYER 0x0F >>> + >>> +#define LP87565_OTP_REV_OTP_ID 0xFF >>> + >>> +#define LP87565_BUCK_CTRL_1_EN BIT(7) >>> +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) >>> +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 >>> + >>> +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) >>> +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) >>> +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) >>> +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ >>> +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) >>> + >>> +#define LP87565_BUCK_CTRL_2_ILIM 0x38 >>> +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 >>> + >>> +#define LP87565_BUCK_VSET 0xFF >>> +#define LP87565_BUCK_FLOOR_VSET 0xFF >>> + >>> +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 >>> +#define LP87565_BUCK_STARTUP_DELAY 0x0F >>> + >>> +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 >>> +#define LP87565_GPIO_STARTUP_DELAY 0x0F >>> + >>> +#define LP87565_RESET_SW_RESET BIT(0) >>> + >>> +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) >>> +#define LP87565_CONFIG_CLKIN_PD BIT(6) >>> +#define LP87565_CONFIG_EN4_PD BIT(5) >>> +#define LP87565_CONFIG_EN3_PD BIT(4) >>> +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) >>> +#define LP87565_CONFIG_EN2_PD BIT(2) >>> +#define LP87565_CONFIG_EN1_PD BIT(1) >>> + >>> +#define LP87565_INT_GPIO BIT(7) >>> +#define LP87565_INT_BUCK23 BIT(6) >>> +#define LP87565_INT_BUCK01 BIT(5) >>> +#define LP87565_NO_SYNC_CLK BIT(4) >>> +#define LP87565_TDIE_SD BIT(3) >>> +#define LP87565_TDIE_WARN BIT(2) >>> +#define LP87565_INT_OVP BIT(1) >>> +#define LP87565_I_LOAD_READY BIT(0) >>> + >>> +#define LP87565_INT_TOP2_RESET_REG BIT(0) >>> + >>> +#define LP87565_BUCK1_PG_INT BIT(6) >>> +#define LP87565_BUCK1_SC_INT BIT(5) >>> +#define LP87565_BUCK1_ILIM_INT BIT(4) >>> +#define LP87565_BUCK0_PG_INT BIT(2) >>> +#define LP87565_BUCK0_SC_INT BIT(1) >>> +#define LP87565_BUCK0_ILIM_INT BIT(0) >>> + >>> +#define LP87565_BUCK3_PG_INT BIT(6) >>> +#define LP87565_BUCK3_SC_INT BIT(5) >>> +#define LP87565_BUCK3_ILIM_INT BIT(4) >>> +#define LP87565_BUCK2_PG_INT BIT(2) >>> +#define LP87565_BUCK2_SC_INT BIT(1) >>> +#define LP87565_BUCK2_ILIM_INT BIT(0) >>> + >>> +#define LP87565_SYNC_CLK_STAT BIT(4) >>> +#define LP87565_TDIE_SD_STAT BIT(3) >>> +#define LP87565_TDIE_WARN_STAT BIT(2) >>> +#define LP87565_OVP_STAT BIT(1) >>> + >>> +#define LP87565_BUCK1_STAT BIT(7) >>> +#define LP87565_BUCK1_PG_STAT BIT(6) >>> +#define LP87565_BUCK1_ILIM_STAT BIT(4) >>> +#define LP87565_BUCK0_STAT BIT(3) >>> +#define LP87565_BUCK0_PG_STAT BIT(2) >>> +#define LP87565_BUCK0_ILIM_STAT BIT(0) >>> + >>> +#define LP87565_BUCK3_STAT BIT(7) >>> +#define LP87565_BUCK3_PG_STAT BIT(6) >>> +#define LP87565_BUCK3_ILIM_STAT BIT(4) >>> +#define LP87565_BUCK2_STAT BIT(3) >>> +#define LP87565_BUCK2_PG_STAT BIT(2) >>> +#define LP87565_BUCK2_ILIM_STAT BIT(0) >>> + >>> +#define LPL87565_GPIO_MASK BIT(7) >>> +#define LPL87565_SYNC_CLK_MASK BIT(4) >>> +#define LPL87565_TDIE_WARN_MASK BIT(2) >>> +#define LPL87565_I_LOAD_READY_MASK BIT(0) >>> + >>> +#define LPL87565_RESET_REG_MASK BIT(0) >>> + >>> +#define LPL87565_BUCK1_PG_MASK BIT(6) >>> +#define LPL87565_BUCK1_ILIM_MASK BIT(4) >>> +#define LPL87565_BUCK0_PG_MASK BIT(2) >>> +#define LPL87565_BUCK0_ILIM_MASK BIT(0) >>> + >>> +#define LPL87565_BUCK3_PG_MASK BIT(6) >>> +#define LPL87565_BUCK3_ILIM_MASK BIT(4) >>> +#define LPL87565_BUCK2_PG_MASK BIT(2) >>> +#define LPL87565_BUCK2_ILIM_MASK BIT(0) >>> + >>> +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 >>> + >>> +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 >>> +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF >>> + >>> +#define LP87565_PG3_SEL 0xC0 >>> +#define LP87565_PG2_SEL 0x30 >>> +#define LP87565_PG1_SEL 0x0C >>> +#define LP87565_PG0_SEL 0x03 >>> + >>> +#define LP87565_HALF_DAY BIT(7) >>> +#define LP87565_EN_PG0_NINT BIT(6) >>> +#define LP87565_PGOOD_SET_DELAY BIT(5) >>> +#define LP87565_EN_PGFLT_STAT BIT(4) >>> +#define LP87565_PGOOD_WINDOW BIT(2) >>> +#define LP87565_PGOOD_OD BIT(1) >>> +#define LP87565_PGOOD_POL BIT(0) >>> + >>> +#define LP87565_PG3_FLT BIT(3) >>> +#define LP87565_PG2_FLT BIT(2) >>> +#define LP87565_PG1_FLT BIT(1) >>> +#define LP87565_PG0_FLT BIT(0) >>> + >>> +#define LP87565_PLL_MODE 0xC0 >>> +#define LP87565_EXT_CLK_FREQ 0x1F >>> + >>> +#define LP87565_EN_SPREAD_SPEC BIT(7) >>> +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) >>> +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) >>> +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) >>> +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) >>> +#define LP87565_GPIO3_SEL BIT(2) >>> +#define LP87565_GPIO2_SEL BIT(1) >>> +#define LP87565_GPIO1_SEL BIT(0) >>> + >>> +#define LP87565_GOIO3_OD BIT(6) >>> +#define LP87565_GOIO2_OD BIT(5) >>> +#define LP87565_GOIO1_OD BIT(4) >>> +#define LP87565_GOIO3_DIR BIT(2) >>> +#define LP87565_GOIO2_DIR BIT(1) >>> +#define LP87565_GOIO1_DIR BIT(0) >>> + >>> +#define LP87565_GOIO3_IN BIT(2) >>> +#define LP87565_GOIO2_IN BIT(1) >>> +#define LP87565_GOIO1_IN BIT(0) >>> + >>> +#define LP87565_GOIO3_OUT BIT(2) >>> +#define LP87565_GOIO2_OUT BIT(1) >>> +#define LP87565_GOIO1_OUT BIT(0) >>> + >>> +/* Number of step-down converters available */ >>> +#define LP87565_NUM_BUCK 6 >>> + >>> +enum LP87565_regulator_id { >>> + /* BUCK's */ >>> + LP87565_BUCK_0, >>> + LP87565_BUCK_1, >>> + LP87565_BUCK_2, >>> + LP87565_BUCK_3, >>> + LP87565_BUCK_10, >>> + LP87565_BUCK_23, >>> +}; >>> + >>> +/** >>> + * struct LP87565 - state holder for the LP87565 driver >>> + * @dev: struct device pointer for MFD device >>> + * @rev: revision of the LP87565 >>> + * @dev_type: The device type for example lp87565-q1 >>> + * @lock: lock guarding the data structure >>> + * @regmap: register map of the LP87565 PMIC >>> + * >>> + * Device data may be used to access the LP87565 chip >>> + */ >>> +struct lp87565 { >>> + struct device *dev; >>> + u8 rev; >>> + u8 dev_type; >>> + struct regmap *regmap; >>> +}; >>> +#endif /* __LINUX_MFD_LP87565_H */ >> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Monday 22 May 2017 09:53 AM, Keerthy wrote: > > > On Friday 19 May 2017 09:12 PM, Andrew F. Davis wrote: >> On 05/19/2017 07:42 AM, Keerthy wrote: >>> The LP87565 chip is a power management IC for Portable Navigation Systems >>> and Tablet Computing devices. It contains the following components: >>> >>> - Configurable Bucks(Single and multi-phase). >>> - Configurable General Purpose Output Signals (GPO). >>> >>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >>> output. >>> >>> Signed-off-by: Keerthy <j-keerthy@ti.com> >>> --- >>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >>> drivers/mfd/Kconfig | 14 ++ >>> drivers/mfd/Makefile | 1 + >>> drivers/mfd/lp87565.c | 103 ++++++++ >>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >>> 5 files changed, 437 insertions(+) >>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >>> create mode 100644 drivers/mfd/lp87565.c >>> create mode 100644 include/linux/mfd/lp87565.h >>> >>> diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt >>> new file mode 100644 >>> index 0000000..38a00a1 >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt >>> @@ -0,0 +1,44 @@ >>> +TI LP873565 PMIC MFD driver >>> + >>> +Required properties: >>> + - compatible: "ti,lp87565", "ti,lp87565-q1" >> >> The of_device_id table in the driver only seems to match for >> "ti,lp87565-q1", not "ti,lp87565". > > I will add both. ti,lp87565 is the generic one and the ti,lp87565-q1 is > a specific one with dual phase regulators. > >> >>> + - reg: I2C slave address. >>> + - gpio-controller: Marks the device node as a GPIO Controller. >>> + - #gpio-cells: Should be two. The first cell is the pin number and >>> + the second cell is used to specify flags. >>> + See ../gpio/gpio.txt for more information. >>> + - xxx-in-supply: Phandle to parent supply node of each regulator >>> + populated under regulators node. xxx should match >>> + the supply_name populated in driver. >>> + - regulators: List of child nodes that specify the regulator >>> + initialization data. >>> +Example: >>> + >>> +lp87565: lp87565@60 { >> >> pmic: lp87565@60 { >> >> Is more standard. > > Sure. I will change that. > > Thanks for reviewing. Andrew, In case there are 2 PMICs on a board this would be confusing. Instead i would prefer to use: lp87565_pmic: lp87565@60 { There are already existing entries of that form. Thanks, Keerthy > >> >>> + compatible = "ti,lp87565-q1"; >>> + reg = <0x60>; >>> + gpio-controller; >>> + #gpio-cells = <2>; >>> + >>> + buck10-in-supply =<&vsys_3v3>; >>> + buck23-in-supply =<&vsys_3v3>; >>> + regulators: regulators { >>> + buck10_reg: buck10 { >>> + /*VDD_MPU*/ >>> + regulator-name = "buck10"; >>> + regulator-min-microvolt = <850000>; >>> + regulator-max-microvolt = <1250000>; >>> + regulator-always-on; >>> + regulator-boot-on; >>> + }; >>> + >>> + buck23_reg: buck23 { >>> + /* VDD_GPU*/ >>> + regulator-name = "buck23"; >>> + regulator-min-microvolt = <850000>; >>> + regulator-max-microvolt = <1250000>; >>> + regulator-boot-on; >>> + regulator-always-on; >>> + }; >>> + }; >>> +}; >>> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig >>> index 3eb5c93..5e884f3 100644 >>> --- a/drivers/mfd/Kconfig >>> +++ b/drivers/mfd/Kconfig >>> @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X >>> This driver can also be built as a module. If so, the module >>> will be called lp873x. >>> >>> +config MFD_TI_LP87565 >>> + tristate "TI LP87565 Power Management IC" >>> + depends on I2C >>> + select MFD_CORE >>> + select REGMAP_I2C >>> + help >>> + If you say yes here then you get support for the LP87565 series of >>> + Power Management Integrated Circuits (PMIC). >>> + These include voltage regulators, thermal protection, configurable >>> + General Purpose Outputs (GPO) that are used in portable devices. >>> + >>> + This driver can also be built as a module. If so, the module >>> + will be called lp87565. >>> + >>> config MFD_TPS65218 >>> tristate "TI TPS65218 Power Management chips" >>> depends on I2C >>> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile >>> index c16bf1e..7edbe1b 100644 >>> --- a/drivers/mfd/Makefile >>> +++ b/drivers/mfd/Makefile >>> @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o >>> obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o >>> >>> obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o >>> +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o >>> >>> obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o >>> obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o >>> diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c >>> new file mode 100644 >>> index 0000000..dff882f >>> --- /dev/null >>> +++ b/drivers/mfd/lp87565.c >>> @@ -0,0 +1,103 @@ >>> +/* >>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >>> + * >>> + * Author: Keerthy <j-keerthy@ti.com> >>> + * >>> + * This program is free software; you can redistribute it and/or >>> + * modify it under the terms of the GNU General Public License as >>> + * published by the Free Software Foundation version 2. >>> + * >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >>> + * kind, whether express or implied; without even the implied warranty >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >>> + * GNU General Public License for more details. >>> + */ >>> + >>> +#include <linux/interrupt.h> >>> +#include <linux/mfd/core.h> >>> +#include <linux/module.h> >>> +#include <linux/of_device.h> >>> +#include <linux/regmap.h> >>> + >>> +#include <linux/mfd/lp87565.h> >>> + >>> +static const struct regmap_config lp87565_regmap_config = { >>> + .reg_bits = 8, >>> + .val_bits = 8, >>> + .max_register = LP87565_REG_MAX, >>> +}; >>> + >>> +static const struct mfd_cell lp87565_cells[] = { >>> + { .name = "lp87565-q1-regulator", }, >>> + { .name = "lp87565-q1-gpio", }, >>> +}; >>> + >>> +static const struct of_device_id of_lp87565_match_table[] = { >>> + { >>> + .compatible = "ti,lp87565-q1", >>> + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, >>> + }, >>> + {} >>> +}; >>> +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); >>> + >>> +static int lp87565_probe(struct i2c_client *client, >>> + const struct i2c_device_id *ids) >>> +{ >>> + struct lp87565 *lp87565; >>> + const struct of_device_id *of_id; >>> + int ret; >>> + unsigned int otpid; >>> + >>> + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); >>> + if (!lp87565) >>> + return -ENOMEM; >>> + >>> + lp87565->dev = &client->dev; >>> + >>> + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); >>> + if (IS_ERR(lp87565->regmap)) { >>> + ret = PTR_ERR(lp87565->regmap); >>> + dev_err(lp87565->dev, >>> + "Failed to initialize register map: %d\n", ret); >>> + return ret; >>> + } >>> + >>> + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); >>> + if (ret) { >>> + dev_err(lp87565->dev, "Failed to read OTP ID\n"); >>> + return ret; >>> + } >>> + >>> + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; >>> + of_id = of_match_device(of_lp87565_match_table, &client->dev); >>> + if (of_id) >>> + lp87565->dev_type = (enum lp87565_device_type)of_id->data; >>> + >>> + i2c_set_clientdata(client, lp87565); >>> + >>> + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, >>> + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); >>> + >>> + return ret; >>> +} >>> + >>> +static const struct i2c_device_id lp87565_id_table[] = { >>> + { "lp87565-q1", 0 }, >>> + { }, >>> +}; >>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >>> + >>> +static struct i2c_driver lp87565_driver = { >>> + .driver = { >>> + .name = "lp87565", >>> + .of_match_table = of_lp87565_match_table, >>> + }, >>> + .probe = lp87565_probe, >>> + .id_table = lp87565_id_table, >>> +}; >>> +module_i2c_driver(lp87565_driver); >>> + >>> +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); >>> +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); >>> +MODULE_LICENSE("GPL v2"); >>> diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h >>> new file mode 100644 >>> index 0000000..6112365 >>> --- /dev/null >>> +++ b/include/linux/mfd/lp87565.h >>> @@ -0,0 +1,275 @@ >>> +/* >>> + * Functions to access LP87565 power management chip. >>> + * >>> + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ >>> + * >>> + * This program is free software; you can redistribute it and/or >>> + * modify it under the terms of the GNU General Public License as >>> + * published by the Free Software Foundation version 2. >>> + * >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any >>> + * kind, whether express or implied; without even the implied warranty >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >>> + * GNU General Public License for more details. >>> + */ >>> + >>> +#ifndef __LINUX_MFD_LP87565_H >>> +#define __LINUX_MFD_LP87565_H >>> + >>> +#include <linux/i2c.h> >>> +#include <linux/regulator/driver.h> >>> +#include <linux/regulator/machine.h> >>> + >>> +enum lp87565_device_type { >>> + LP87565_DEVICE_TYPE_UNKNOWN = 0, >>> + LP87565_DEVICE_TYPE_LP87565_Q1, >>> +}; >>> + >>> +/* All register addresses */ >>> +#define LP87565_REG_DEV_REV 0X00 >>> +#define LP87565_REG_OTP_REV 0X01 >>> +#define LP87565_REG_BUCK0_CTRL_1 0X02 >>> +#define LP87565_REG_BUCK0_CTRL_2 0X03 >>> + >>> +#define LP87565_REG_BUCK1_CTRL_1 0X04 >>> +#define LP87565_REG_BUCK1_CTRL_2 0X05 >>> + >>> +#define LP87565_REG_BUCK2_CTRL_1 0X06 >>> +#define LP87565_REG_BUCK2_CTRL_2 0X07 >>> + >>> +#define LP87565_REG_BUCK3_CTRL_1 0X08 >>> +#define LP87565_REG_BUCK3_CTRL_2 0X09 >>> + >>> +#define LP87565_REG_BUCK0_VOUT 0X0A >>> +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B >>> + >>> +#define LP87565_REG_BUCK1_VOUT 0X0C >>> +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D >>> + >>> +#define LP87565_REG_BUCK2_VOUT 0X0E >>> +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F >>> + >>> +#define LP87565_REG_BUCK3_VOUT 0X10 >>> +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 >>> + >>> +#define LP87565_REG_BUCK0_DELAY 0X12 >>> +#define LP87565_REG_BUCK1_DELAY 0X13 >>> + >>> +#define LP87565_REG_BUCK2_DELAY 0X14 >>> +#define LP87565_REG_BUCK3_DELAY 0X15 >>> + >>> +#define LP87565_REG_GPO2_DELAY 0X16 >>> +#define LP87565_REG_GPO3_DELAY 0X17 >>> +#define LP87565_REG_RESET 0X18 >>> +#define LP87565_REG_CONFIG 0X19 >>> + >>> +#define LP87565_REG_INT_TOP_1 0X1A >>> +#define LP87565_REG_INT_TOP_2 0X1B >>> + >>> +#define LP87565_REG_INT_BUCK_0_1 0X1C >>> +#define LP87565_REG_INT_BUCK_2_3 0X1D >>> +#define LP87565_REG_TOP_STAT 0X1E >>> +#define LP87565_REG_BUCK_0_1_STAT 0X1F >>> +#define LP87565_REG_BUCK_2_3_STAT 0x20 >>> + >>> +#define LP87565_REG_TOP_MASK_1 0x21 >>> +#define LP87565_REG_TOP_MASK_2 0x22 >>> + >>> +#define LP87565_REG_BUCK_0_1_MASK 0x23 >>> +#define LP87565_REG_BUCK_2_3_MASK 0x24 >>> +#define LP87565_REG_SEL_I_LOAD 0x25 >>> + >>> +#define LP87565_REG_I_LOAD_2 0x26 >>> +#define LP87565_REG_I_LOAD_1 0x27 >>> + >>> +#define LP87565_REG_PGOOD_CTRL1 0x28 >>> +#define LP87565_REG_PGOOD_CTRL2 0x29 >>> +#define LP87565_REG_PGOOD_FLT 0x2A >>> +#define LP87565_REG_PLL_CTRL 0x2B >>> +#define LP87565_REG_PIN_FUNCTION 0x2C >>> +#define LP87565_REG_GPIO_CONFIG 0x2D >>> +#define LP87565_REG_GPIO_IN 0x2E >>> +#define LP87565_REG_GPIO_OUT 0x2F >>> + >>> +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT >>> + >>> +/* Register field definitions */ >>> +#define LP87565_DEV_REV_DEV_ID 0xC0 >>> +#define LP87565_DEV_REV_ALL_LAYER 0x30 >>> +#define LP87565_DEV_REV_METAL_LAYER 0x0F >>> + >>> +#define LP87565_OTP_REV_OTP_ID 0xFF >>> + >>> +#define LP87565_BUCK_CTRL_1_EN BIT(7) >>> +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) >>> +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 >>> + >>> +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) >>> +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) >>> +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) >>> +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ >>> +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) >>> + >>> +#define LP87565_BUCK_CTRL_2_ILIM 0x38 >>> +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 >>> + >>> +#define LP87565_BUCK_VSET 0xFF >>> +#define LP87565_BUCK_FLOOR_VSET 0xFF >>> + >>> +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 >>> +#define LP87565_BUCK_STARTUP_DELAY 0x0F >>> + >>> +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 >>> +#define LP87565_GPIO_STARTUP_DELAY 0x0F >>> + >>> +#define LP87565_RESET_SW_RESET BIT(0) >>> + >>> +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) >>> +#define LP87565_CONFIG_CLKIN_PD BIT(6) >>> +#define LP87565_CONFIG_EN4_PD BIT(5) >>> +#define LP87565_CONFIG_EN3_PD BIT(4) >>> +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) >>> +#define LP87565_CONFIG_EN2_PD BIT(2) >>> +#define LP87565_CONFIG_EN1_PD BIT(1) >>> + >>> +#define LP87565_INT_GPIO BIT(7) >>> +#define LP87565_INT_BUCK23 BIT(6) >>> +#define LP87565_INT_BUCK01 BIT(5) >>> +#define LP87565_NO_SYNC_CLK BIT(4) >>> +#define LP87565_TDIE_SD BIT(3) >>> +#define LP87565_TDIE_WARN BIT(2) >>> +#define LP87565_INT_OVP BIT(1) >>> +#define LP87565_I_LOAD_READY BIT(0) >>> + >>> +#define LP87565_INT_TOP2_RESET_REG BIT(0) >>> + >>> +#define LP87565_BUCK1_PG_INT BIT(6) >>> +#define LP87565_BUCK1_SC_INT BIT(5) >>> +#define LP87565_BUCK1_ILIM_INT BIT(4) >>> +#define LP87565_BUCK0_PG_INT BIT(2) >>> +#define LP87565_BUCK0_SC_INT BIT(1) >>> +#define LP87565_BUCK0_ILIM_INT BIT(0) >>> + >>> +#define LP87565_BUCK3_PG_INT BIT(6) >>> +#define LP87565_BUCK3_SC_INT BIT(5) >>> +#define LP87565_BUCK3_ILIM_INT BIT(4) >>> +#define LP87565_BUCK2_PG_INT BIT(2) >>> +#define LP87565_BUCK2_SC_INT BIT(1) >>> +#define LP87565_BUCK2_ILIM_INT BIT(0) >>> + >>> +#define LP87565_SYNC_CLK_STAT BIT(4) >>> +#define LP87565_TDIE_SD_STAT BIT(3) >>> +#define LP87565_TDIE_WARN_STAT BIT(2) >>> +#define LP87565_OVP_STAT BIT(1) >>> + >>> +#define LP87565_BUCK1_STAT BIT(7) >>> +#define LP87565_BUCK1_PG_STAT BIT(6) >>> +#define LP87565_BUCK1_ILIM_STAT BIT(4) >>> +#define LP87565_BUCK0_STAT BIT(3) >>> +#define LP87565_BUCK0_PG_STAT BIT(2) >>> +#define LP87565_BUCK0_ILIM_STAT BIT(0) >>> + >>> +#define LP87565_BUCK3_STAT BIT(7) >>> +#define LP87565_BUCK3_PG_STAT BIT(6) >>> +#define LP87565_BUCK3_ILIM_STAT BIT(4) >>> +#define LP87565_BUCK2_STAT BIT(3) >>> +#define LP87565_BUCK2_PG_STAT BIT(2) >>> +#define LP87565_BUCK2_ILIM_STAT BIT(0) >>> + >>> +#define LPL87565_GPIO_MASK BIT(7) >>> +#define LPL87565_SYNC_CLK_MASK BIT(4) >>> +#define LPL87565_TDIE_WARN_MASK BIT(2) >>> +#define LPL87565_I_LOAD_READY_MASK BIT(0) >>> + >>> +#define LPL87565_RESET_REG_MASK BIT(0) >>> + >>> +#define LPL87565_BUCK1_PG_MASK BIT(6) >>> +#define LPL87565_BUCK1_ILIM_MASK BIT(4) >>> +#define LPL87565_BUCK0_PG_MASK BIT(2) >>> +#define LPL87565_BUCK0_ILIM_MASK BIT(0) >>> + >>> +#define LPL87565_BUCK3_PG_MASK BIT(6) >>> +#define LPL87565_BUCK3_ILIM_MASK BIT(4) >>> +#define LPL87565_BUCK2_PG_MASK BIT(2) >>> +#define LPL87565_BUCK2_ILIM_MASK BIT(0) >>> + >>> +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 >>> + >>> +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 >>> +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF >>> + >>> +#define LP87565_PG3_SEL 0xC0 >>> +#define LP87565_PG2_SEL 0x30 >>> +#define LP87565_PG1_SEL 0x0C >>> +#define LP87565_PG0_SEL 0x03 >>> + >>> +#define LP87565_HALF_DAY BIT(7) >>> +#define LP87565_EN_PG0_NINT BIT(6) >>> +#define LP87565_PGOOD_SET_DELAY BIT(5) >>> +#define LP87565_EN_PGFLT_STAT BIT(4) >>> +#define LP87565_PGOOD_WINDOW BIT(2) >>> +#define LP87565_PGOOD_OD BIT(1) >>> +#define LP87565_PGOOD_POL BIT(0) >>> + >>> +#define LP87565_PG3_FLT BIT(3) >>> +#define LP87565_PG2_FLT BIT(2) >>> +#define LP87565_PG1_FLT BIT(1) >>> +#define LP87565_PG0_FLT BIT(0) >>> + >>> +#define LP87565_PLL_MODE 0xC0 >>> +#define LP87565_EXT_CLK_FREQ 0x1F >>> + >>> +#define LP87565_EN_SPREAD_SPEC BIT(7) >>> +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) >>> +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) >>> +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) >>> +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) >>> +#define LP87565_GPIO3_SEL BIT(2) >>> +#define LP87565_GPIO2_SEL BIT(1) >>> +#define LP87565_GPIO1_SEL BIT(0) >>> + >>> +#define LP87565_GOIO3_OD BIT(6) >>> +#define LP87565_GOIO2_OD BIT(5) >>> +#define LP87565_GOIO1_OD BIT(4) >>> +#define LP87565_GOIO3_DIR BIT(2) >>> +#define LP87565_GOIO2_DIR BIT(1) >>> +#define LP87565_GOIO1_DIR BIT(0) >>> + >>> +#define LP87565_GOIO3_IN BIT(2) >>> +#define LP87565_GOIO2_IN BIT(1) >>> +#define LP87565_GOIO1_IN BIT(0) >>> + >>> +#define LP87565_GOIO3_OUT BIT(2) >>> +#define LP87565_GOIO2_OUT BIT(1) >>> +#define LP87565_GOIO1_OUT BIT(0) >>> + >>> +/* Number of step-down converters available */ >>> +#define LP87565_NUM_BUCK 6 >>> + >>> +enum LP87565_regulator_id { >>> + /* BUCK's */ >>> + LP87565_BUCK_0, >>> + LP87565_BUCK_1, >>> + LP87565_BUCK_2, >>> + LP87565_BUCK_3, >>> + LP87565_BUCK_10, >>> + LP87565_BUCK_23, >>> +}; >>> + >>> +/** >>> + * struct LP87565 - state holder for the LP87565 driver >>> + * @dev: struct device pointer for MFD device >>> + * @rev: revision of the LP87565 >>> + * @dev_type: The device type for example lp87565-q1 >>> + * @lock: lock guarding the data structure >>> + * @regmap: register map of the LP87565 PMIC >>> + * >>> + * Device data may be used to access the LP87565 chip >>> + */ >>> +struct lp87565 { >>> + struct device *dev; >>> + u8 rev; >>> + u8 dev_type; >>> + struct regmap *regmap; >>> +}; >>> +#endif /* __LINUX_MFD_LP87565_H */ >>> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, 23 May 2017, Keerthy wrote: > > > On Monday 22 May 2017 09:53 AM, Keerthy wrote: > > > > > > On Friday 19 May 2017 09:12 PM, Andrew F. Davis wrote: > >> On 05/19/2017 07:42 AM, Keerthy wrote: > >>> The LP87565 chip is a power management IC for Portable Navigation Systems > >>> and Tablet Computing devices. It contains the following components: > >>> > >>> - Configurable Bucks(Single and multi-phase). > >>> - Configurable General Purpose Output Signals (GPO). > >>> > >>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, > >>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 > >>> output. > >>> > >>> Signed-off-by: Keerthy <j-keerthy@ti.com> > >>> --- > >>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ > >>> drivers/mfd/Kconfig | 14 ++ > >>> drivers/mfd/Makefile | 1 + > >>> drivers/mfd/lp87565.c | 103 ++++++++ > >>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ > >>> 5 files changed, 437 insertions(+) > >>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt > >>> create mode 100644 drivers/mfd/lp87565.c > >>> create mode 100644 include/linux/mfd/lp87565.h > >>> > >>> diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt > >>> new file mode 100644 > >>> index 0000000..38a00a1 > >>> --- /dev/null > >>> +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt > >>> @@ -0,0 +1,44 @@ > >>> +TI LP873565 PMIC MFD driver > >>> + > >>> +Required properties: > >>> + - compatible: "ti,lp87565", "ti,lp87565-q1" > >> > >> The of_device_id table in the driver only seems to match for > >> "ti,lp87565-q1", not "ti,lp87565". > > > > I will add both. ti,lp87565 is the generic one and the ti,lp87565-q1 is > > a specific one with dual phase regulators. > > > >> > >>> + - reg: I2C slave address. > >>> + - gpio-controller: Marks the device node as a GPIO Controller. > >>> + - #gpio-cells: Should be two. The first cell is the pin number and > >>> + the second cell is used to specify flags. > >>> + See ../gpio/gpio.txt for more information. > >>> + - xxx-in-supply: Phandle to parent supply node of each regulator > >>> + populated under regulators node. xxx should match > >>> + the supply_name populated in driver. > >>> + - regulators: List of child nodes that specify the regulator > >>> + initialization data. > >>> +Example: > >>> + > >>> +lp87565: lp87565@60 { > >> > >> pmic: lp87565@60 { > >> > >> Is more standard. > > > > Sure. I will change that. > > > > Thanks for reviewing. > > Andrew, > > In case there are 2 PMICs on a board this would be confusing. > Instead i would prefer to use: > > lp87565_pmic: lp87565@60 { > > There are already existing entries of that form. This too is not correct. It should be: lp87565: pmic@60 { The label at the front is flexible, but the node name should be the generic type of device, so; gpio, regulator, serial, i2c, timer, pmic, etc, followed by the value of the reg property. > >>> + compatible = "ti,lp87565-q1"; > >>> + reg = <0x60>; > >>> + gpio-controller; > >>> + #gpio-cells = <2>; > >>> + > >>> + buck10-in-supply =<&vsys_3v3>; > >>> + buck23-in-supply =<&vsys_3v3>; > >>> + regulators: regulators { > >>> + buck10_reg: buck10 { > >>> + /*VDD_MPU*/ > >>> + regulator-name = "buck10"; > >>> + regulator-min-microvolt = <850000>; > >>> + regulator-max-microvolt = <1250000>; > >>> + regulator-always-on; > >>> + regulator-boot-on; > >>> + }; > >>> + > >>> + buck23_reg: buck23 { > >>> + /* VDD_GPU*/ > >>> + regulator-name = "buck23"; > >>> + regulator-min-microvolt = <850000>; > >>> + regulator-max-microvolt = <1250000>; > >>> + regulator-boot-on; > >>> + regulator-always-on; > >>> + }; > >>> + }; > >>> +}; > >>> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > >>> index 3eb5c93..5e884f3 100644 > >>> --- a/drivers/mfd/Kconfig > >>> +++ b/drivers/mfd/Kconfig > >>> @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X > >>> This driver can also be built as a module. If so, the module > >>> will be called lp873x. > >>> > >>> +config MFD_TI_LP87565 > >>> + tristate "TI LP87565 Power Management IC" > >>> + depends on I2C > >>> + select MFD_CORE > >>> + select REGMAP_I2C > >>> + help > >>> + If you say yes here then you get support for the LP87565 series of > >>> + Power Management Integrated Circuits (PMIC). > >>> + These include voltage regulators, thermal protection, configurable > >>> + General Purpose Outputs (GPO) that are used in portable devices. > >>> + > >>> + This driver can also be built as a module. If so, the module > >>> + will be called lp87565. > >>> + > >>> config MFD_TPS65218 > >>> tristate "TI TPS65218 Power Management chips" > >>> depends on I2C > >>> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > >>> index c16bf1e..7edbe1b 100644 > >>> --- a/drivers/mfd/Makefile > >>> +++ b/drivers/mfd/Makefile > >>> @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o > >>> obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o > >>> > >>> obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o > >>> +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o > >>> > >>> obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o > >>> obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o > >>> diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c > >>> new file mode 100644 > >>> index 0000000..dff882f > >>> --- /dev/null > >>> +++ b/drivers/mfd/lp87565.c > >>> @@ -0,0 +1,103 @@ > >>> +/* > >>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ > >>> + * > >>> + * Author: Keerthy <j-keerthy@ti.com> > >>> + * > >>> + * This program is free software; you can redistribute it and/or > >>> + * modify it under the terms of the GNU General Public License as > >>> + * published by the Free Software Foundation version 2. > >>> + * > >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any > >>> + * kind, whether express or implied; without even the implied warranty > >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >>> + * GNU General Public License for more details. > >>> + */ > >>> + > >>> +#include <linux/interrupt.h> > >>> +#include <linux/mfd/core.h> > >>> +#include <linux/module.h> > >>> +#include <linux/of_device.h> > >>> +#include <linux/regmap.h> > >>> + > >>> +#include <linux/mfd/lp87565.h> > >>> + > >>> +static const struct regmap_config lp87565_regmap_config = { > >>> + .reg_bits = 8, > >>> + .val_bits = 8, > >>> + .max_register = LP87565_REG_MAX, > >>> +}; > >>> + > >>> +static const struct mfd_cell lp87565_cells[] = { > >>> + { .name = "lp87565-q1-regulator", }, > >>> + { .name = "lp87565-q1-gpio", }, > >>> +}; > >>> + > >>> +static const struct of_device_id of_lp87565_match_table[] = { > >>> + { > >>> + .compatible = "ti,lp87565-q1", > >>> + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, > >>> + }, > >>> + {} > >>> +}; > >>> +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); > >>> + > >>> +static int lp87565_probe(struct i2c_client *client, > >>> + const struct i2c_device_id *ids) > >>> +{ > >>> + struct lp87565 *lp87565; > >>> + const struct of_device_id *of_id; > >>> + int ret; > >>> + unsigned int otpid; > >>> + > >>> + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); > >>> + if (!lp87565) > >>> + return -ENOMEM; > >>> + > >>> + lp87565->dev = &client->dev; > >>> + > >>> + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); > >>> + if (IS_ERR(lp87565->regmap)) { > >>> + ret = PTR_ERR(lp87565->regmap); > >>> + dev_err(lp87565->dev, > >>> + "Failed to initialize register map: %d\n", ret); > >>> + return ret; > >>> + } > >>> + > >>> + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); > >>> + if (ret) { > >>> + dev_err(lp87565->dev, "Failed to read OTP ID\n"); > >>> + return ret; > >>> + } > >>> + > >>> + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; > >>> + of_id = of_match_device(of_lp87565_match_table, &client->dev); > >>> + if (of_id) > >>> + lp87565->dev_type = (enum lp87565_device_type)of_id->data; > >>> + > >>> + i2c_set_clientdata(client, lp87565); > >>> + > >>> + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, > >>> + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); > >>> + > >>> + return ret; > >>> +} > >>> + > >>> +static const struct i2c_device_id lp87565_id_table[] = { > >>> + { "lp87565-q1", 0 }, > >>> + { }, > >>> +}; > >>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); > >>> + > >>> +static struct i2c_driver lp87565_driver = { > >>> + .driver = { > >>> + .name = "lp87565", > >>> + .of_match_table = of_lp87565_match_table, > >>> + }, > >>> + .probe = lp87565_probe, > >>> + .id_table = lp87565_id_table, > >>> +}; > >>> +module_i2c_driver(lp87565_driver); > >>> + > >>> +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); > >>> +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); > >>> +MODULE_LICENSE("GPL v2"); > >>> diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h > >>> new file mode 100644 > >>> index 0000000..6112365 > >>> --- /dev/null > >>> +++ b/include/linux/mfd/lp87565.h > >>> @@ -0,0 +1,275 @@ > >>> +/* > >>> + * Functions to access LP87565 power management chip. > >>> + * > >>> + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ > >>> + * > >>> + * This program is free software; you can redistribute it and/or > >>> + * modify it under the terms of the GNU General Public License as > >>> + * published by the Free Software Foundation version 2. > >>> + * > >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any > >>> + * kind, whether express or implied; without even the implied warranty > >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >>> + * GNU General Public License for more details. > >>> + */ > >>> + > >>> +#ifndef __LINUX_MFD_LP87565_H > >>> +#define __LINUX_MFD_LP87565_H > >>> + > >>> +#include <linux/i2c.h> > >>> +#include <linux/regulator/driver.h> > >>> +#include <linux/regulator/machine.h> > >>> + > >>> +enum lp87565_device_type { > >>> + LP87565_DEVICE_TYPE_UNKNOWN = 0, > >>> + LP87565_DEVICE_TYPE_LP87565_Q1, > >>> +}; > >>> + > >>> +/* All register addresses */ > >>> +#define LP87565_REG_DEV_REV 0X00 > >>> +#define LP87565_REG_OTP_REV 0X01 > >>> +#define LP87565_REG_BUCK0_CTRL_1 0X02 > >>> +#define LP87565_REG_BUCK0_CTRL_2 0X03 > >>> + > >>> +#define LP87565_REG_BUCK1_CTRL_1 0X04 > >>> +#define LP87565_REG_BUCK1_CTRL_2 0X05 > >>> + > >>> +#define LP87565_REG_BUCK2_CTRL_1 0X06 > >>> +#define LP87565_REG_BUCK2_CTRL_2 0X07 > >>> + > >>> +#define LP87565_REG_BUCK3_CTRL_1 0X08 > >>> +#define LP87565_REG_BUCK3_CTRL_2 0X09 > >>> + > >>> +#define LP87565_REG_BUCK0_VOUT 0X0A > >>> +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B > >>> + > >>> +#define LP87565_REG_BUCK1_VOUT 0X0C > >>> +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D > >>> + > >>> +#define LP87565_REG_BUCK2_VOUT 0X0E > >>> +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F > >>> + > >>> +#define LP87565_REG_BUCK3_VOUT 0X10 > >>> +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 > >>> + > >>> +#define LP87565_REG_BUCK0_DELAY 0X12 > >>> +#define LP87565_REG_BUCK1_DELAY 0X13 > >>> + > >>> +#define LP87565_REG_BUCK2_DELAY 0X14 > >>> +#define LP87565_REG_BUCK3_DELAY 0X15 > >>> + > >>> +#define LP87565_REG_GPO2_DELAY 0X16 > >>> +#define LP87565_REG_GPO3_DELAY 0X17 > >>> +#define LP87565_REG_RESET 0X18 > >>> +#define LP87565_REG_CONFIG 0X19 > >>> + > >>> +#define LP87565_REG_INT_TOP_1 0X1A > >>> +#define LP87565_REG_INT_TOP_2 0X1B > >>> + > >>> +#define LP87565_REG_INT_BUCK_0_1 0X1C > >>> +#define LP87565_REG_INT_BUCK_2_3 0X1D > >>> +#define LP87565_REG_TOP_STAT 0X1E > >>> +#define LP87565_REG_BUCK_0_1_STAT 0X1F > >>> +#define LP87565_REG_BUCK_2_3_STAT 0x20 > >>> + > >>> +#define LP87565_REG_TOP_MASK_1 0x21 > >>> +#define LP87565_REG_TOP_MASK_2 0x22 > >>> + > >>> +#define LP87565_REG_BUCK_0_1_MASK 0x23 > >>> +#define LP87565_REG_BUCK_2_3_MASK 0x24 > >>> +#define LP87565_REG_SEL_I_LOAD 0x25 > >>> + > >>> +#define LP87565_REG_I_LOAD_2 0x26 > >>> +#define LP87565_REG_I_LOAD_1 0x27 > >>> + > >>> +#define LP87565_REG_PGOOD_CTRL1 0x28 > >>> +#define LP87565_REG_PGOOD_CTRL2 0x29 > >>> +#define LP87565_REG_PGOOD_FLT 0x2A > >>> +#define LP87565_REG_PLL_CTRL 0x2B > >>> +#define LP87565_REG_PIN_FUNCTION 0x2C > >>> +#define LP87565_REG_GPIO_CONFIG 0x2D > >>> +#define LP87565_REG_GPIO_IN 0x2E > >>> +#define LP87565_REG_GPIO_OUT 0x2F > >>> + > >>> +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT > >>> + > >>> +/* Register field definitions */ > >>> +#define LP87565_DEV_REV_DEV_ID 0xC0 > >>> +#define LP87565_DEV_REV_ALL_LAYER 0x30 > >>> +#define LP87565_DEV_REV_METAL_LAYER 0x0F > >>> + > >>> +#define LP87565_OTP_REV_OTP_ID 0xFF > >>> + > >>> +#define LP87565_BUCK_CTRL_1_EN BIT(7) > >>> +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) > >>> +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 > >>> + > >>> +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) > >>> +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) > >>> +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) > >>> +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ > >>> +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) > >>> + > >>> +#define LP87565_BUCK_CTRL_2_ILIM 0x38 > >>> +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 > >>> + > >>> +#define LP87565_BUCK_VSET 0xFF > >>> +#define LP87565_BUCK_FLOOR_VSET 0xFF > >>> + > >>> +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 > >>> +#define LP87565_BUCK_STARTUP_DELAY 0x0F > >>> + > >>> +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 > >>> +#define LP87565_GPIO_STARTUP_DELAY 0x0F > >>> + > >>> +#define LP87565_RESET_SW_RESET BIT(0) > >>> + > >>> +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) > >>> +#define LP87565_CONFIG_CLKIN_PD BIT(6) > >>> +#define LP87565_CONFIG_EN4_PD BIT(5) > >>> +#define LP87565_CONFIG_EN3_PD BIT(4) > >>> +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) > >>> +#define LP87565_CONFIG_EN2_PD BIT(2) > >>> +#define LP87565_CONFIG_EN1_PD BIT(1) > >>> + > >>> +#define LP87565_INT_GPIO BIT(7) > >>> +#define LP87565_INT_BUCK23 BIT(6) > >>> +#define LP87565_INT_BUCK01 BIT(5) > >>> +#define LP87565_NO_SYNC_CLK BIT(4) > >>> +#define LP87565_TDIE_SD BIT(3) > >>> +#define LP87565_TDIE_WARN BIT(2) > >>> +#define LP87565_INT_OVP BIT(1) > >>> +#define LP87565_I_LOAD_READY BIT(0) > >>> + > >>> +#define LP87565_INT_TOP2_RESET_REG BIT(0) > >>> + > >>> +#define LP87565_BUCK1_PG_INT BIT(6) > >>> +#define LP87565_BUCK1_SC_INT BIT(5) > >>> +#define LP87565_BUCK1_ILIM_INT BIT(4) > >>> +#define LP87565_BUCK0_PG_INT BIT(2) > >>> +#define LP87565_BUCK0_SC_INT BIT(1) > >>> +#define LP87565_BUCK0_ILIM_INT BIT(0) > >>> + > >>> +#define LP87565_BUCK3_PG_INT BIT(6) > >>> +#define LP87565_BUCK3_SC_INT BIT(5) > >>> +#define LP87565_BUCK3_ILIM_INT BIT(4) > >>> +#define LP87565_BUCK2_PG_INT BIT(2) > >>> +#define LP87565_BUCK2_SC_INT BIT(1) > >>> +#define LP87565_BUCK2_ILIM_INT BIT(0) > >>> + > >>> +#define LP87565_SYNC_CLK_STAT BIT(4) > >>> +#define LP87565_TDIE_SD_STAT BIT(3) > >>> +#define LP87565_TDIE_WARN_STAT BIT(2) > >>> +#define LP87565_OVP_STAT BIT(1) > >>> + > >>> +#define LP87565_BUCK1_STAT BIT(7) > >>> +#define LP87565_BUCK1_PG_STAT BIT(6) > >>> +#define LP87565_BUCK1_ILIM_STAT BIT(4) > >>> +#define LP87565_BUCK0_STAT BIT(3) > >>> +#define LP87565_BUCK0_PG_STAT BIT(2) > >>> +#define LP87565_BUCK0_ILIM_STAT BIT(0) > >>> + > >>> +#define LP87565_BUCK3_STAT BIT(7) > >>> +#define LP87565_BUCK3_PG_STAT BIT(6) > >>> +#define LP87565_BUCK3_ILIM_STAT BIT(4) > >>> +#define LP87565_BUCK2_STAT BIT(3) > >>> +#define LP87565_BUCK2_PG_STAT BIT(2) > >>> +#define LP87565_BUCK2_ILIM_STAT BIT(0) > >>> + > >>> +#define LPL87565_GPIO_MASK BIT(7) > >>> +#define LPL87565_SYNC_CLK_MASK BIT(4) > >>> +#define LPL87565_TDIE_WARN_MASK BIT(2) > >>> +#define LPL87565_I_LOAD_READY_MASK BIT(0) > >>> + > >>> +#define LPL87565_RESET_REG_MASK BIT(0) > >>> + > >>> +#define LPL87565_BUCK1_PG_MASK BIT(6) > >>> +#define LPL87565_BUCK1_ILIM_MASK BIT(4) > >>> +#define LPL87565_BUCK0_PG_MASK BIT(2) > >>> +#define LPL87565_BUCK0_ILIM_MASK BIT(0) > >>> + > >>> +#define LPL87565_BUCK3_PG_MASK BIT(6) > >>> +#define LPL87565_BUCK3_ILIM_MASK BIT(4) > >>> +#define LPL87565_BUCK2_PG_MASK BIT(2) > >>> +#define LPL87565_BUCK2_ILIM_MASK BIT(0) > >>> + > >>> +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 > >>> + > >>> +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 > >>> +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF > >>> + > >>> +#define LP87565_PG3_SEL 0xC0 > >>> +#define LP87565_PG2_SEL 0x30 > >>> +#define LP87565_PG1_SEL 0x0C > >>> +#define LP87565_PG0_SEL 0x03 > >>> + > >>> +#define LP87565_HALF_DAY BIT(7) > >>> +#define LP87565_EN_PG0_NINT BIT(6) > >>> +#define LP87565_PGOOD_SET_DELAY BIT(5) > >>> +#define LP87565_EN_PGFLT_STAT BIT(4) > >>> +#define LP87565_PGOOD_WINDOW BIT(2) > >>> +#define LP87565_PGOOD_OD BIT(1) > >>> +#define LP87565_PGOOD_POL BIT(0) > >>> + > >>> +#define LP87565_PG3_FLT BIT(3) > >>> +#define LP87565_PG2_FLT BIT(2) > >>> +#define LP87565_PG1_FLT BIT(1) > >>> +#define LP87565_PG0_FLT BIT(0) > >>> + > >>> +#define LP87565_PLL_MODE 0xC0 > >>> +#define LP87565_EXT_CLK_FREQ 0x1F > >>> + > >>> +#define LP87565_EN_SPREAD_SPEC BIT(7) > >>> +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) > >>> +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) > >>> +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) > >>> +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) > >>> +#define LP87565_GPIO3_SEL BIT(2) > >>> +#define LP87565_GPIO2_SEL BIT(1) > >>> +#define LP87565_GPIO1_SEL BIT(0) > >>> + > >>> +#define LP87565_GOIO3_OD BIT(6) > >>> +#define LP87565_GOIO2_OD BIT(5) > >>> +#define LP87565_GOIO1_OD BIT(4) > >>> +#define LP87565_GOIO3_DIR BIT(2) > >>> +#define LP87565_GOIO2_DIR BIT(1) > >>> +#define LP87565_GOIO1_DIR BIT(0) > >>> + > >>> +#define LP87565_GOIO3_IN BIT(2) > >>> +#define LP87565_GOIO2_IN BIT(1) > >>> +#define LP87565_GOIO1_IN BIT(0) > >>> + > >>> +#define LP87565_GOIO3_OUT BIT(2) > >>> +#define LP87565_GOIO2_OUT BIT(1) > >>> +#define LP87565_GOIO1_OUT BIT(0) > >>> + > >>> +/* Number of step-down converters available */ > >>> +#define LP87565_NUM_BUCK 6 > >>> + > >>> +enum LP87565_regulator_id { > >>> + /* BUCK's */ > >>> + LP87565_BUCK_0, > >>> + LP87565_BUCK_1, > >>> + LP87565_BUCK_2, > >>> + LP87565_BUCK_3, > >>> + LP87565_BUCK_10, > >>> + LP87565_BUCK_23, > >>> +}; > >>> + > >>> +/** > >>> + * struct LP87565 - state holder for the LP87565 driver > >>> + * @dev: struct device pointer for MFD device > >>> + * @rev: revision of the LP87565 > >>> + * @dev_type: The device type for example lp87565-q1 > >>> + * @lock: lock guarding the data structure > >>> + * @regmap: register map of the LP87565 PMIC > >>> + * > >>> + * Device data may be used to access the LP87565 chip > >>> + */ > >>> +struct lp87565 { > >>> + struct device *dev; > >>> + u8 rev; > >>> + u8 dev_type; > >>> + struct regmap *regmap; > >>> +}; > >>> +#endif /* __LINUX_MFD_LP87565_H */ > >>>
On Tue, 23 May 2017, Keerthy wrote: > On Monday 22 May 2017 11:18 PM, Lee Jones wrote: > > On Fri, 19 May 2017, Keerthy wrote: > > > >> The LP87565 chip is a power management IC for Portable Navigation Systems > >> and Tablet Computing devices. It contains the following components: > >> > >> - Configurable Bucks(Single and multi-phase). > >> - Configurable General Purpose Output Signals (GPO). > >> > >> The LP87565-Q1 variant device uses two 2-phase outputs configuration, > >> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 > >> output. > >> > >> Signed-off-by: Keerthy <j-keerthy@ti.com> > >> --- > >> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ > >> drivers/mfd/Kconfig | 14 ++ > >> drivers/mfd/Makefile | 1 + > >> drivers/mfd/lp87565.c | 103 ++++++++ > >> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ > >> 5 files changed, 437 insertions(+) > >> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt > >> create mode 100644 drivers/mfd/lp87565.c > >> create mode 100644 include/linux/mfd/lp87565.h > >> [...] > >> +/* > >> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ > >> + * > >> + * Author: Keerthy <j-keerthy@ti.com> > > > > We usually ask for full "first last" names. > > Keerthy is my full name and i do not have a surname. What is the 'J' for in your email address? [...] > >> +static const struct i2c_device_id lp87565_id_table[] = { > >> + { "lp87565-q1", 0 }, > >> + { }, > >> +}; > >> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); > > > > Is this an OF only driver, or not? You didn't answer my question?
On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: > On Tue, 23 May 2017, Keerthy wrote: >> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: >>> On Fri, 19 May 2017, Keerthy wrote: >>> >>>> The LP87565 chip is a power management IC for Portable Navigation Systems >>>> and Tablet Computing devices. It contains the following components: >>>> >>>> - Configurable Bucks(Single and multi-phase). >>>> - Configurable General Purpose Output Signals (GPO). >>>> >>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >>>> output. >>>> >>>> Signed-off-by: Keerthy <j-keerthy@ti.com> >>>> --- >>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >>>> drivers/mfd/Kconfig | 14 ++ >>>> drivers/mfd/Makefile | 1 + >>>> drivers/mfd/lp87565.c | 103 ++++++++ >>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >>>> 5 files changed, 437 insertions(+) >>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >>>> create mode 100644 drivers/mfd/lp87565.c >>>> create mode 100644 include/linux/mfd/lp87565.h >>>> > > [...] > >>>> +/* >>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >>>> + * >>>> + * Author: Keerthy <j-keerthy@ti.com> >>> >>> We usually ask for full "first last" names. >> >> Keerthy is my full name and i do not have a surname. > > What is the 'J' for in your email address? Father's initials. > [...] > >>>> +static const struct i2c_device_id lp87565_id_table[] = { >>>> + { "lp87565-q1", 0 }, >>>> + { }, >>>> +}; >>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >>> >>> Is this an OF only driver, or not? > > You didn't answer my question? > Sorry i replied on top again. It will be an OF only driver. Regards, Keerthy -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tuesday 23 May 2017 01:11 PM, Keerthy wrote: > > > On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: >> On Tue, 23 May 2017, Keerthy wrote: >>> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: >>>> On Fri, 19 May 2017, Keerthy wrote: >>>> >>>>> The LP87565 chip is a power management IC for Portable Navigation Systems >>>>> and Tablet Computing devices. It contains the following components: >>>>> >>>>> - Configurable Bucks(Single and multi-phase). >>>>> - Configurable General Purpose Output Signals (GPO). >>>>> >>>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >>>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >>>>> output. >>>>> >>>>> Signed-off-by: Keerthy <j-keerthy@ti.com> >>>>> --- >>>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >>>>> drivers/mfd/Kconfig | 14 ++ >>>>> drivers/mfd/Makefile | 1 + >>>>> drivers/mfd/lp87565.c | 103 ++++++++ >>>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >>>>> 5 files changed, 437 insertions(+) >>>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >>>>> create mode 100644 drivers/mfd/lp87565.c >>>>> create mode 100644 include/linux/mfd/lp87565.h >>>>> >> >> [...] >> >>>>> +/* >>>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >>>>> + * >>>>> + * Author: Keerthy <j-keerthy@ti.com> >>>> >>>> We usually ask for full "first last" names. >>> >>> Keerthy is my full name and i do not have a surname. >> >> What is the 'J' for in your email address? > > Father's initials. https://lkml.org/lkml/2012/7/11/482 I have been using this for a while now. > >> [...] >> >>>>> +static const struct i2c_device_id lp87565_id_table[] = { >>>>> + { "lp87565-q1", 0 }, >>>>> + { }, >>>>> +}; >>>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >>>> >>>> Is this an OF only driver, or not? >> >> You didn't answer my question? >> > > Sorry i replied on top again. It will be an OF only driver. > > Regards, > Keerthy > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, 23 May 2017, Keerthy wrote: > On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: > > On Tue, 23 May 2017, Keerthy wrote: > >> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: > >>> On Fri, 19 May 2017, Keerthy wrote: > >>> > >>>> The LP87565 chip is a power management IC for Portable Navigation Systems > >>>> and Tablet Computing devices. It contains the following components: > >>>> > >>>> - Configurable Bucks(Single and multi-phase). > >>>> - Configurable General Purpose Output Signals (GPO). > >>>> > >>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, > >>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 > >>>> output. > >>>> > >>>> Signed-off-by: Keerthy <j-keerthy@ti.com> > >>>> --- > >>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ > >>>> drivers/mfd/Kconfig | 14 ++ > >>>> drivers/mfd/Makefile | 1 + > >>>> drivers/mfd/lp87565.c | 103 ++++++++ > >>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ > >>>> 5 files changed, 437 insertions(+) > >>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt > >>>> create mode 100644 drivers/mfd/lp87565.c > >>>> create mode 100644 include/linux/mfd/lp87565.h > >>>> > > > > [...] > > > >>>> +/* > >>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ > >>>> + * > >>>> + * Author: Keerthy <j-keerthy@ti.com> > >>> > >>> We usually ask for full "first last" names. > >> > >> Keerthy is my full name and i do not have a surname. > > > > What is the 'J' for in your email address? > > Father's initials. Okay. > > [...] > > > >>>> +static const struct i2c_device_id lp87565_id_table[] = { > >>>> + { "lp87565-q1", 0 }, > >>>> + { }, > >>>> +}; > >>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); > >>> > >>> Is this an OF only driver, or not? > > > > You didn't answer my question? > > Sorry i replied on top again. It will be an OF only driver. Okay, then you don't need this table and you should depend on OF in the Kconfig file.
On Tue, 23 May 2017, Keerthy wrote: > On Tuesday 23 May 2017 01:11 PM, Keerthy wrote: > > On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: > >> On Tue, 23 May 2017, Keerthy wrote: > >>> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: > >>>> On Fri, 19 May 2017, Keerthy wrote: > >>>> > >>>>> The LP87565 chip is a power management IC for Portable Navigation Systems > >>>>> and Tablet Computing devices. It contains the following components: > >>>>> > >>>>> - Configurable Bucks(Single and multi-phase). > >>>>> - Configurable General Purpose Output Signals (GPO). > >>>>> > >>>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, > >>>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 > >>>>> output. > >>>>> > >>>>> Signed-off-by: Keerthy <j-keerthy@ti.com> > >>>>> --- > >>>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ > >>>>> drivers/mfd/Kconfig | 14 ++ > >>>>> drivers/mfd/Makefile | 1 + > >>>>> drivers/mfd/lp87565.c | 103 ++++++++ > >>>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ > >>>>> 5 files changed, 437 insertions(+) > >>>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt > >>>>> create mode 100644 drivers/mfd/lp87565.c > >>>>> create mode 100644 include/linux/mfd/lp87565.h > >>>>> > >> > >> [...] > >> > >>>>> +/* > >>>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ > >>>>> + * > >>>>> + * Author: Keerthy <j-keerthy@ti.com> > >>>> > >>>> We usually ask for full "first last" names. > >>> > >>> Keerthy is my full name and i do not have a surname. > >> > >> What is the 'J' for in your email address? > > > > Father's initials. > > https://lkml.org/lkml/2012/7/11/482 > > I have been using this for a while now. Right and Trump has been president for a while now, it doesn't mean it's okay. ;) > >> [...] > >> > >>>>> +static const struct i2c_device_id lp87565_id_table[] = { > >>>>> + { "lp87565-q1", 0 }, > >>>>> + { }, > >>>>> +}; > >>>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); > >>>> > >>>> Is this an OF only driver, or not? > >> > >> You didn't answer my question? > >> > > > > Sorry i replied on top again. It will be an OF only driver. > > > > Regards, > > Keerthy > >
On Tuesday 23 May 2017 02:17 PM, Lee Jones wrote: > On Tue, 23 May 2017, Keerthy wrote: >> On Tuesday 23 May 2017 01:11 PM, Keerthy wrote: >>> On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: >>>> On Tue, 23 May 2017, Keerthy wrote: >>>>> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: >>>>>> On Fri, 19 May 2017, Keerthy wrote: >>>>>> >>>>>>> The LP87565 chip is a power management IC for Portable Navigation Systems >>>>>>> and Tablet Computing devices. It contains the following components: >>>>>>> >>>>>>> - Configurable Bucks(Single and multi-phase). >>>>>>> - Configurable General Purpose Output Signals (GPO). >>>>>>> >>>>>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >>>>>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >>>>>>> output. >>>>>>> >>>>>>> Signed-off-by: Keerthy <j-keerthy@ti.com> >>>>>>> --- >>>>>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >>>>>>> drivers/mfd/Kconfig | 14 ++ >>>>>>> drivers/mfd/Makefile | 1 + >>>>>>> drivers/mfd/lp87565.c | 103 ++++++++ >>>>>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >>>>>>> 5 files changed, 437 insertions(+) >>>>>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >>>>>>> create mode 100644 drivers/mfd/lp87565.c >>>>>>> create mode 100644 include/linux/mfd/lp87565.h >>>>>>> >>>> >>>> [...] >>>> >>>>>>> +/* >>>>>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >>>>>>> + * >>>>>>> + * Author: Keerthy <j-keerthy@ti.com> >>>>>> >>>>>> We usually ask for full "first last" names. >>>>> >>>>> Keerthy is my full name and i do not have a surname. >>>> >>>> What is the 'J' for in your email address? >>> >>> Father's initials. >> >> https://lkml.org/lkml/2012/7/11/482 >> >> I have been using this for a while now. > > Right and Trump has been president for a while now, it doesn't mean > it's okay. ;) I won't comment on Trump! Let me assure you once again that my full name is Keerthy just like your full name is Lee Jones :-). > >>>> [...] >>>> >>>>>>> +static const struct i2c_device_id lp87565_id_table[] = { >>>>>>> + { "lp87565-q1", 0 }, >>>>>>> + { }, >>>>>>> +}; >>>>>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >>>>>> >>>>>> Is this an OF only driver, or not? >>>> >>>> You didn't answer my question? >>>> >>> >>> Sorry i replied on top again. It will be an OF only driver. >>> >>> Regards, >>> Keerthy >>> > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tuesday 23 May 2017 02:15 PM, Lee Jones wrote: > On Tue, 23 May 2017, Keerthy wrote: >> On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: >>> On Tue, 23 May 2017, Keerthy wrote: >>>> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: >>>>> On Fri, 19 May 2017, Keerthy wrote: >>>>> >>>>>> The LP87565 chip is a power management IC for Portable Navigation Systems >>>>>> and Tablet Computing devices. It contains the following components: >>>>>> >>>>>> - Configurable Bucks(Single and multi-phase). >>>>>> - Configurable General Purpose Output Signals (GPO). >>>>>> >>>>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >>>>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >>>>>> output. >>>>>> >>>>>> Signed-off-by: Keerthy <j-keerthy@ti.com> >>>>>> --- >>>>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >>>>>> drivers/mfd/Kconfig | 14 ++ >>>>>> drivers/mfd/Makefile | 1 + >>>>>> drivers/mfd/lp87565.c | 103 ++++++++ >>>>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >>>>>> 5 files changed, 437 insertions(+) >>>>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >>>>>> create mode 100644 drivers/mfd/lp87565.c >>>>>> create mode 100644 include/linux/mfd/lp87565.h >>>>>> >>> >>> [...] >>> >>>>>> +/* >>>>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >>>>>> + * >>>>>> + * Author: Keerthy <j-keerthy@ti.com> >>>>> >>>>> We usually ask for full "first last" names. >>>> >>>> Keerthy is my full name and i do not have a surname. >>> >>> What is the 'J' for in your email address? >> >> Father's initials. > > Okay. > >>> [...] >>> >>>>>> +static const struct i2c_device_id lp87565_id_table[] = { >>>>>> + { "lp87565-q1", 0 }, >>>>>> + { }, >>>>>> +}; >>>>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >>>>> >>>>> Is this an OF only driver, or not? >>> >>> You didn't answer my question? >> >> Sorry i replied on top again. It will be an OF only driver. > > Okay, then you don't need this table and you should depend on OF in > the Kconfig file. Okay. Cool thanks for this info. I am seeing this commit: 4895e493f91bff7f96f328b883c7f6448aa6abc6 mfd: Export OF module alias information in missing drivers So no need of i2c_device_id for any of the OF-only mfd drivers? > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tuesday 23 May 2017 03:41 PM, Keerthy wrote: > > > On Tuesday 23 May 2017 02:15 PM, Lee Jones wrote: >> On Tue, 23 May 2017, Keerthy wrote: >>> On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: >>>> On Tue, 23 May 2017, Keerthy wrote: >>>>> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: >>>>>> On Fri, 19 May 2017, Keerthy wrote: >>>>>> >>>>>>> The LP87565 chip is a power management IC for Portable Navigation Systems >>>>>>> and Tablet Computing devices. It contains the following components: >>>>>>> >>>>>>> - Configurable Bucks(Single and multi-phase). >>>>>>> - Configurable General Purpose Output Signals (GPO). >>>>>>> >>>>>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, >>>>>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 >>>>>>> output. >>>>>>> >>>>>>> Signed-off-by: Keerthy <j-keerthy@ti.com> >>>>>>> --- >>>>>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ >>>>>>> drivers/mfd/Kconfig | 14 ++ >>>>>>> drivers/mfd/Makefile | 1 + >>>>>>> drivers/mfd/lp87565.c | 103 ++++++++ >>>>>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ >>>>>>> 5 files changed, 437 insertions(+) >>>>>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt >>>>>>> create mode 100644 drivers/mfd/lp87565.c >>>>>>> create mode 100644 include/linux/mfd/lp87565.h >>>>>>> >>>> >>>> [...] >>>> >>>>>>> +/* >>>>>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ >>>>>>> + * >>>>>>> + * Author: Keerthy <j-keerthy@ti.com> >>>>>> >>>>>> We usually ask for full "first last" names. >>>>> >>>>> Keerthy is my full name and i do not have a surname. >>>> >>>> What is the 'J' for in your email address? >>> >>> Father's initials. >> >> Okay. >> >>>> [...] >>>> >>>>>>> +static const struct i2c_device_id lp87565_id_table[] = { >>>>>>> + { "lp87565-q1", 0 }, >>>>>>> + { }, >>>>>>> +}; >>>>>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); >>>>>> >>>>>> Is this an OF only driver, or not? >>>> >>>> You didn't answer my question? >>> >>> Sorry i replied on top again. It will be an OF only driver. >> >> Okay, then you don't need this table and you should depend on OF in >> the Kconfig file. > > Okay. Cool thanks for this info. > > I am seeing this commit: 4895e493f91bff7f96f328b883c7f6448aa6abc6 > > mfd: Export OF module alias information in missing drivers > > So no need of i2c_device_id for any of the OF-only mfd drivers? Referred drivers/mfd/max77686.c driver. Used probe_new. Posted v2. > >> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, 23 May 2017, Keerthy wrote: > > > On Tuesday 23 May 2017 02:15 PM, Lee Jones wrote: > > On Tue, 23 May 2017, Keerthy wrote: > >> On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote: > >>> On Tue, 23 May 2017, Keerthy wrote: > >>>> On Monday 22 May 2017 11:18 PM, Lee Jones wrote: > >>>>> On Fri, 19 May 2017, Keerthy wrote: > >>>>> > >>>>>> The LP87565 chip is a power management IC for Portable Navigation Systems > >>>>>> and Tablet Computing devices. It contains the following components: > >>>>>> > >>>>>> - Configurable Bucks(Single and multi-phase). > >>>>>> - Configurable General Purpose Output Signals (GPO). > >>>>>> > >>>>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration, > >>>>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 > >>>>>> output. > >>>>>> > >>>>>> Signed-off-by: Keerthy <j-keerthy@ti.com> > >>>>>> --- > >>>>>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ > >>>>>> drivers/mfd/Kconfig | 14 ++ > >>>>>> drivers/mfd/Makefile | 1 + > >>>>>> drivers/mfd/lp87565.c | 103 ++++++++ > >>>>>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ > >>>>>> 5 files changed, 437 insertions(+) > >>>>>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt > >>>>>> create mode 100644 drivers/mfd/lp87565.c > >>>>>> create mode 100644 include/linux/mfd/lp87565.h > >>>>>> > >>> > >>> [...] > >>> > >>>>>> +/* > >>>>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ > >>>>>> + * > >>>>>> + * Author: Keerthy <j-keerthy@ti.com> > >>>>> > >>>>> We usually ask for full "first last" names. > >>>> > >>>> Keerthy is my full name and i do not have a surname. > >>> > >>> What is the 'J' for in your email address? > >> > >> Father's initials. > > > > Okay. > > > >>> [...] > >>> > >>>>>> +static const struct i2c_device_id lp87565_id_table[] = { > >>>>>> + { "lp87565-q1", 0 }, > >>>>>> + { }, > >>>>>> +}; > >>>>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); > >>>>> > >>>>> Is this an OF only driver, or not? > >>> > >>> You didn't answer my question? > >> > >> Sorry i replied on top again. It will be an OF only driver. > > > > Okay, then you don't need this table and you should depend on OF in > > the Kconfig file. > > Okay. Cool thanks for this info. > > I am seeing this commit: 4895e493f91bff7f96f328b883c7f6448aa6abc6 > > mfd: Export OF module alias information in missing drivers > > So no need of i2c_device_id for any of the OF-only mfd drivers? So long as you don't depend on the .data attribute.
diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt new file mode 100644 index 0000000..38a00a1 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt @@ -0,0 +1,44 @@ +TI LP873565 PMIC MFD driver + +Required properties: + - compatible: "ti,lp87565", "ti,lp87565-q1" + - reg: I2C slave address. + - gpio-controller: Marks the device node as a GPIO Controller. + - #gpio-cells: Should be two. The first cell is the pin number and + the second cell is used to specify flags. + See ../gpio/gpio.txt for more information. + - xxx-in-supply: Phandle to parent supply node of each regulator + populated under regulators node. xxx should match + the supply_name populated in driver. + - regulators: List of child nodes that specify the regulator + initialization data. +Example: + +lp87565: lp87565@60 { + compatible = "ti,lp87565-q1"; + reg = <0x60>; + gpio-controller; + #gpio-cells = <2>; + + buck10-in-supply =<&vsys_3v3>; + buck23-in-supply =<&vsys_3v3>; + regulators: regulators { + buck10_reg: buck10 { + /*VDD_MPU*/ + regulator-name = "buck10"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1250000>; + regulator-always-on; + regulator-boot-on; + }; + + buck23_reg: buck23 { + /* VDD_GPU*/ + regulator-name = "buck23"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1250000>; + regulator-boot-on; + regulator-always-on; + }; + }; +}; diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 3eb5c93..5e884f3 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X This driver can also be built as a module. If so, the module will be called lp873x. +config MFD_TI_LP87565 + tristate "TI LP87565 Power Management IC" + depends on I2C + select MFD_CORE + select REGMAP_I2C + help + If you say yes here then you get support for the LP87565 series of + Power Management Integrated Circuits (PMIC). + These include voltage regulators, thermal protection, configurable + General Purpose Outputs (GPO) that are used in portable devices. + + This driver can also be built as a module. If so, the module + will be called lp87565. + config MFD_TPS65218 tristate "TI TPS65218 Power Management chips" depends on I2C diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index c16bf1e..7edbe1b 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c new file mode 100644 index 0000000..dff882f --- /dev/null +++ b/drivers/mfd/lp87565.c @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ + * + * Author: Keerthy <j-keerthy@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/interrupt.h> +#include <linux/mfd/core.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/regmap.h> + +#include <linux/mfd/lp87565.h> + +static const struct regmap_config lp87565_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = LP87565_REG_MAX, +}; + +static const struct mfd_cell lp87565_cells[] = { + { .name = "lp87565-q1-regulator", }, + { .name = "lp87565-q1-gpio", }, +}; + +static const struct of_device_id of_lp87565_match_table[] = { + { + .compatible = "ti,lp87565-q1", + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1, + }, + {} +}; +MODULE_DEVICE_TABLE(of, of_lp87565_match_table); + +static int lp87565_probe(struct i2c_client *client, + const struct i2c_device_id *ids) +{ + struct lp87565 *lp87565; + const struct of_device_id *of_id; + int ret; + unsigned int otpid; + + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL); + if (!lp87565) + return -ENOMEM; + + lp87565->dev = &client->dev; + + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config); + if (IS_ERR(lp87565->regmap)) { + ret = PTR_ERR(lp87565->regmap); + dev_err(lp87565->dev, + "Failed to initialize register map: %d\n", ret); + return ret; + } + + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid); + if (ret) { + dev_err(lp87565->dev, "Failed to read OTP ID\n"); + return ret; + } + + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID; + of_id = of_match_device(of_lp87565_match_table, &client->dev); + if (of_id) + lp87565->dev_type = (enum lp87565_device_type)of_id->data; + + i2c_set_clientdata(client, lp87565); + + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells, + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL); + + return ret; +} + +static const struct i2c_device_id lp87565_id_table[] = { + { "lp87565-q1", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, lp87565_id_table); + +static struct i2c_driver lp87565_driver = { + .driver = { + .name = "lp87565", + .of_match_table = of_lp87565_match_table, + }, + .probe = lp87565_probe, + .id_table = lp87565_id_table, +}; +module_i2c_driver(lp87565_driver); + +MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>"); +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h new file mode 100644 index 0000000..6112365 --- /dev/null +++ b/include/linux/mfd/lp87565.h @@ -0,0 +1,275 @@ +/* + * Functions to access LP87565 power management chip. + * + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __LINUX_MFD_LP87565_H +#define __LINUX_MFD_LP87565_H + +#include <linux/i2c.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> + +enum lp87565_device_type { + LP87565_DEVICE_TYPE_UNKNOWN = 0, + LP87565_DEVICE_TYPE_LP87565_Q1, +}; + +/* All register addresses */ +#define LP87565_REG_DEV_REV 0X00 +#define LP87565_REG_OTP_REV 0X01 +#define LP87565_REG_BUCK0_CTRL_1 0X02 +#define LP87565_REG_BUCK0_CTRL_2 0X03 + +#define LP87565_REG_BUCK1_CTRL_1 0X04 +#define LP87565_REG_BUCK1_CTRL_2 0X05 + +#define LP87565_REG_BUCK2_CTRL_1 0X06 +#define LP87565_REG_BUCK2_CTRL_2 0X07 + +#define LP87565_REG_BUCK3_CTRL_1 0X08 +#define LP87565_REG_BUCK3_CTRL_2 0X09 + +#define LP87565_REG_BUCK0_VOUT 0X0A +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B + +#define LP87565_REG_BUCK1_VOUT 0X0C +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D + +#define LP87565_REG_BUCK2_VOUT 0X0E +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F + +#define LP87565_REG_BUCK3_VOUT 0X10 +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11 + +#define LP87565_REG_BUCK0_DELAY 0X12 +#define LP87565_REG_BUCK1_DELAY 0X13 + +#define LP87565_REG_BUCK2_DELAY 0X14 +#define LP87565_REG_BUCK3_DELAY 0X15 + +#define LP87565_REG_GPO2_DELAY 0X16 +#define LP87565_REG_GPO3_DELAY 0X17 +#define LP87565_REG_RESET 0X18 +#define LP87565_REG_CONFIG 0X19 + +#define LP87565_REG_INT_TOP_1 0X1A +#define LP87565_REG_INT_TOP_2 0X1B + +#define LP87565_REG_INT_BUCK_0_1 0X1C +#define LP87565_REG_INT_BUCK_2_3 0X1D +#define LP87565_REG_TOP_STAT 0X1E +#define LP87565_REG_BUCK_0_1_STAT 0X1F +#define LP87565_REG_BUCK_2_3_STAT 0x20 + +#define LP87565_REG_TOP_MASK_1 0x21 +#define LP87565_REG_TOP_MASK_2 0x22 + +#define LP87565_REG_BUCK_0_1_MASK 0x23 +#define LP87565_REG_BUCK_2_3_MASK 0x24 +#define LP87565_REG_SEL_I_LOAD 0x25 + +#define LP87565_REG_I_LOAD_2 0x26 +#define LP87565_REG_I_LOAD_1 0x27 + +#define LP87565_REG_PGOOD_CTRL1 0x28 +#define LP87565_REG_PGOOD_CTRL2 0x29 +#define LP87565_REG_PGOOD_FLT 0x2A +#define LP87565_REG_PLL_CTRL 0x2B +#define LP87565_REG_PIN_FUNCTION 0x2C +#define LP87565_REG_GPIO_CONFIG 0x2D +#define LP87565_REG_GPIO_IN 0x2E +#define LP87565_REG_GPIO_OUT 0x2F + +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT + +/* Register field definitions */ +#define LP87565_DEV_REV_DEV_ID 0xC0 +#define LP87565_DEV_REV_ALL_LAYER 0x30 +#define LP87565_DEV_REV_METAL_LAYER 0x0F + +#define LP87565_OTP_REV_OTP_ID 0xFF + +#define LP87565_BUCK_CTRL_1_EN BIT(7) +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6) +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30 + +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3) +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2) +#define LP87565_BUCK_CTRL_1_FPWM BIT(1) +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */ +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0) + +#define LP87565_BUCK_CTRL_2_ILIM 0x38 +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07 + +#define LP87565_BUCK_VSET 0xFF +#define LP87565_BUCK_FLOOR_VSET 0xFF + +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0 +#define LP87565_BUCK_STARTUP_DELAY 0x0F + +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0 +#define LP87565_GPIO_STARTUP_DELAY 0x0F + +#define LP87565_RESET_SW_RESET BIT(0) + +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7) +#define LP87565_CONFIG_CLKIN_PD BIT(6) +#define LP87565_CONFIG_EN4_PD BIT(5) +#define LP87565_CONFIG_EN3_PD BIT(4) +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3) +#define LP87565_CONFIG_EN2_PD BIT(2) +#define LP87565_CONFIG_EN1_PD BIT(1) + +#define LP87565_INT_GPIO BIT(7) +#define LP87565_INT_BUCK23 BIT(6) +#define LP87565_INT_BUCK01 BIT(5) +#define LP87565_NO_SYNC_CLK BIT(4) +#define LP87565_TDIE_SD BIT(3) +#define LP87565_TDIE_WARN BIT(2) +#define LP87565_INT_OVP BIT(1) +#define LP87565_I_LOAD_READY BIT(0) + +#define LP87565_INT_TOP2_RESET_REG BIT(0) + +#define LP87565_BUCK1_PG_INT BIT(6) +#define LP87565_BUCK1_SC_INT BIT(5) +#define LP87565_BUCK1_ILIM_INT BIT(4) +#define LP87565_BUCK0_PG_INT BIT(2) +#define LP87565_BUCK0_SC_INT BIT(1) +#define LP87565_BUCK0_ILIM_INT BIT(0) + +#define LP87565_BUCK3_PG_INT BIT(6) +#define LP87565_BUCK3_SC_INT BIT(5) +#define LP87565_BUCK3_ILIM_INT BIT(4) +#define LP87565_BUCK2_PG_INT BIT(2) +#define LP87565_BUCK2_SC_INT BIT(1) +#define LP87565_BUCK2_ILIM_INT BIT(0) + +#define LP87565_SYNC_CLK_STAT BIT(4) +#define LP87565_TDIE_SD_STAT BIT(3) +#define LP87565_TDIE_WARN_STAT BIT(2) +#define LP87565_OVP_STAT BIT(1) + +#define LP87565_BUCK1_STAT BIT(7) +#define LP87565_BUCK1_PG_STAT BIT(6) +#define LP87565_BUCK1_ILIM_STAT BIT(4) +#define LP87565_BUCK0_STAT BIT(3) +#define LP87565_BUCK0_PG_STAT BIT(2) +#define LP87565_BUCK0_ILIM_STAT BIT(0) + +#define LP87565_BUCK3_STAT BIT(7) +#define LP87565_BUCK3_PG_STAT BIT(6) +#define LP87565_BUCK3_ILIM_STAT BIT(4) +#define LP87565_BUCK2_STAT BIT(3) +#define LP87565_BUCK2_PG_STAT BIT(2) +#define LP87565_BUCK2_ILIM_STAT BIT(0) + +#define LPL87565_GPIO_MASK BIT(7) +#define LPL87565_SYNC_CLK_MASK BIT(4) +#define LPL87565_TDIE_WARN_MASK BIT(2) +#define LPL87565_I_LOAD_READY_MASK BIT(0) + +#define LPL87565_RESET_REG_MASK BIT(0) + +#define LPL87565_BUCK1_PG_MASK BIT(6) +#define LPL87565_BUCK1_ILIM_MASK BIT(4) +#define LPL87565_BUCK0_PG_MASK BIT(2) +#define LPL87565_BUCK0_ILIM_MASK BIT(0) + +#define LPL87565_BUCK3_PG_MASK BIT(6) +#define LPL87565_BUCK3_ILIM_MASK BIT(4) +#define LPL87565_BUCK2_PG_MASK BIT(2) +#define LPL87565_BUCK2_ILIM_MASK BIT(0) + +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3 + +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3 +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF + +#define LP87565_PG3_SEL 0xC0 +#define LP87565_PG2_SEL 0x30 +#define LP87565_PG1_SEL 0x0C +#define LP87565_PG0_SEL 0x03 + +#define LP87565_HALF_DAY BIT(7) +#define LP87565_EN_PG0_NINT BIT(6) +#define LP87565_PGOOD_SET_DELAY BIT(5) +#define LP87565_EN_PGFLT_STAT BIT(4) +#define LP87565_PGOOD_WINDOW BIT(2) +#define LP87565_PGOOD_OD BIT(1) +#define LP87565_PGOOD_POL BIT(0) + +#define LP87565_PG3_FLT BIT(3) +#define LP87565_PG2_FLT BIT(2) +#define LP87565_PG1_FLT BIT(1) +#define LP87565_PG0_FLT BIT(0) + +#define LP87565_PLL_MODE 0xC0 +#define LP87565_EXT_CLK_FREQ 0x1F + +#define LP87565_EN_SPREAD_SPEC BIT(7) +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6) +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5) +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4) +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3) +#define LP87565_GPIO3_SEL BIT(2) +#define LP87565_GPIO2_SEL BIT(1) +#define LP87565_GPIO1_SEL BIT(0) + +#define LP87565_GOIO3_OD BIT(6) +#define LP87565_GOIO2_OD BIT(5) +#define LP87565_GOIO1_OD BIT(4) +#define LP87565_GOIO3_DIR BIT(2) +#define LP87565_GOIO2_DIR BIT(1) +#define LP87565_GOIO1_DIR BIT(0) + +#define LP87565_GOIO3_IN BIT(2) +#define LP87565_GOIO2_IN BIT(1) +#define LP87565_GOIO1_IN BIT(0) + +#define LP87565_GOIO3_OUT BIT(2) +#define LP87565_GOIO2_OUT BIT(1) +#define LP87565_GOIO1_OUT BIT(0) + +/* Number of step-down converters available */ +#define LP87565_NUM_BUCK 6 + +enum LP87565_regulator_id { + /* BUCK's */ + LP87565_BUCK_0, + LP87565_BUCK_1, + LP87565_BUCK_2, + LP87565_BUCK_3, + LP87565_BUCK_10, + LP87565_BUCK_23, +}; + +/** + * struct LP87565 - state holder for the LP87565 driver + * @dev: struct device pointer for MFD device + * @rev: revision of the LP87565 + * @dev_type: The device type for example lp87565-q1 + * @lock: lock guarding the data structure + * @regmap: register map of the LP87565 PMIC + * + * Device data may be used to access the LP87565 chip + */ +struct lp87565 { + struct device *dev; + u8 rev; + u8 dev_type; + struct regmap *regmap; +}; +#endif /* __LINUX_MFD_LP87565_H */
The LP87565 chip is a power management IC for Portable Navigation Systems and Tablet Computing devices. It contains the following components: - Configurable Bucks(Single and multi-phase). - Configurable General Purpose Output Signals (GPO). The LP87565-Q1 variant device uses two 2-phase outputs configuration, Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3 output. Signed-off-by: Keerthy <j-keerthy@ti.com> --- Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++ drivers/mfd/Kconfig | 14 ++ drivers/mfd/Makefile | 1 + drivers/mfd/lp87565.c | 103 ++++++++ include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++ 5 files changed, 437 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt create mode 100644 drivers/mfd/lp87565.c create mode 100644 include/linux/mfd/lp87565.h