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[V1,01/10] mfd: da9061: MFD core support

Message ID c9726b1f01300da7693324b0c1ff7f71dcbc275d.1475743411.git.stwiss.opensource@diasemi.com (mailing list archive)
State New, archived
Headers show

Commit Message

Steve Twiss Oct. 6, 2016, 8:43 a.m. UTC 
From: Steve Twiss <stwiss.opensource@diasemi.com>

MFD support for DA9061 is provided as part of the DA9062 device driver.

The registers header file adds two new chip variant IDs defined in DA9061
and DA9062 hardware. The core header file adds new software enumerations
for listing the valid DA9061 IRQs and a da9062_compatible_types enumeration
for distinguishing between DA9061/62 devices in software.

The core source code adds a new .compatible of_device_id entry. This is
extended from DA9062 to support both "dlg,da9061" and "dlg,da9062". The
.data entry now holds a reference to the enumerated device type.

A new regmap_irq_chip model is added for DA9061 and this supports the new
list of regmap_irq entries. A new mfd_cell da9061_devs[] array lists the
new sub system components for DA9061. Support is added for a new DA9061
regmap_config which lists the correct readble, writable and volatile
ranges for this chip.

The probe function uses the device tree compatible string to switch on the
da9062_compatible_types and configure the correct mfd cells, irq chip and
regmap config. The regmap is initialised first, before reading the variant
ID in hardware to decide if there is a conflict between the device tree
compatible string and the hardware definition. The remainder of the MFD
is finally configured after that.

Kconfig is updated to reflect support for DA9061 and DA9062 PMICs.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>

---
This patch applies against linux-next and v4.8

Lee,

This patch adds support for the DA9061 PMIC. This is done as part of the
existing DA9062 device driver by extending the of_device_id match table.
This in turn allows new MFD cells, irq chip and regmap definitions to
support DA9061.

Regards,
Steve Twiss, Dialog Semiconductor Ltd.


 drivers/mfd/Kconfig                  |   5 +-
 drivers/mfd/da9062-core.c            | 454 +++++++++++++++++++++++++++++++++--
 include/linux/mfd/da9062/core.h      |  27 ++-
 include/linux/mfd/da9062/registers.h |   2 +
 4 files changed, 463 insertions(+), 25 deletions(-)

Comments

Keerthy Oct. 6, 2016, 10:37 a.m. UTC | #1 
On Thursday 06 October 2016 02:13 PM, Steve Twiss wrote:
> From: Steve Twiss <stwiss.opensource@diasemi.com>
>
> MFD support for DA9061 is provided as part of the DA9062 device driver.
>
> The registers header file adds two new chip variant IDs defined in DA9061
> and DA9062 hardware. The core header file adds new software enumerations
> for listing the valid DA9061 IRQs and a da9062_compatible_types enumeration
> for distinguishing between DA9061/62 devices in software.
>
> The core source code adds a new .compatible of_device_id entry. This is
> extended from DA9062 to support both "dlg,da9061" and "dlg,da9062". The
> .data entry now holds a reference to the enumerated device type.
>
> A new regmap_irq_chip model is added for DA9061 and this supports the new
> list of regmap_irq entries. A new mfd_cell da9061_devs[] array lists the
> new sub system components for DA9061. Support is added for a new DA9061
> regmap_config which lists the correct readble, writable and volatile

/s/readble/readable

> ranges for this chip.
>
> The probe function uses the device tree compatible string to switch on the
> da9062_compatible_types and configure the correct mfd cells, irq chip and
> regmap config. The regmap is initialised first, before reading the variant
> ID in hardware to decide if there is a conflict between the device tree
> compatible string and the hardware definition. The remainder of the MFD
> is finally configured after that.
>
> Kconfig is updated to reflect support for DA9061 and DA9062 PMICs.
>
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
>
> ---
> This patch applies against linux-next and v4.8
>
> Lee,
>
> This patch adds support for the DA9061 PMIC. This is done as part of the
> existing DA9062 device driver by extending the of_device_id match table.
> This in turn allows new MFD cells, irq chip and regmap definitions to
> support DA9061.
>
> Regards,
> Steve Twiss, Dialog Semiconductor Ltd.
>
>
>  drivers/mfd/Kconfig                  |   5 +-
>  drivers/mfd/da9062-core.c            | 454 +++++++++++++++++++++++++++++++++--
>  include/linux/mfd/da9062/core.h      |  27 ++-
>  include/linux/mfd/da9062/registers.h |   2 +
>  4 files changed, 463 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 2d1fb64..533798a 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -236,13 +236,14 @@ config MFD_DA9055
>  	  called "da9055"
>
>  config MFD_DA9062
> -	tristate "Dialog Semiconductor DA9062 PMIC Support"
> +	tristate "Dialog Semiconductor DA9062/61 PMIC Support"
>  	select MFD_CORE
>  	select REGMAP_I2C
>  	select REGMAP_IRQ
>  	depends on I2C
>  	help
> -	  Say yes here for support for the Dialog Semiconductor DA9062 PMIC.
> +	  Say yes here for support for the Dialog Semiconductor DA9061 and
> +	  DA9062 PMICs.
>  	  This includes the I2C driver and core APIs.
>  	  Additional drivers must be enabled in order to use the functionality
>  	  of the device.
> diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c
> index 8f873866..bfbc065 100644
> --- a/drivers/mfd/da9062-core.c
> +++ b/drivers/mfd/da9062-core.c
> @@ -1,5 +1,5 @@
>  /*
> - * Core, IRQ and I2C device driver for DA9062 PMIC
> + * Core, IRQ and I2C device driver for DA9062 and DA9061 PMICs
>   * Copyright (C) 2015  Dialog Semiconductor Ltd.
>   *
>   * This program is free software; you can redistribute it and/or
> @@ -30,6 +30,70 @@
>  #define	DA9062_REG_EVENT_B_OFFSET	1
>  #define	DA9062_REG_EVENT_C_OFFSET	2
>
> +static struct regmap_irq da9061_irqs[] = {
> +	/* EVENT A */
> +	[DA9061_IRQ_ONKEY] = {
> +		.reg_offset = DA9062_REG_EVENT_A_OFFSET,
> +		.mask = DA9062AA_M_NONKEY_MASK,
> +	},
> +	[DA9061_IRQ_WDG_WARN] = {
> +		.reg_offset = DA9062_REG_EVENT_A_OFFSET,
> +		.mask = DA9062AA_M_WDG_WARN_MASK,
> +	},
> +	[DA9061_IRQ_SEQ_RDY] = {
> +		.reg_offset = DA9062_REG_EVENT_A_OFFSET,
> +		.mask = DA9062AA_M_SEQ_RDY_MASK,
> +	},
> +	/* EVENT B */
> +	[DA9061_IRQ_TEMP] = {
> +		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
> +		.mask = DA9062AA_M_TEMP_MASK,
> +	},
> +	[DA9061_IRQ_LDO_LIM] = {
> +		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
> +		.mask = DA9062AA_M_LDO_LIM_MASK,
> +	},
> +	[DA9061_IRQ_DVC_RDY] = {
> +		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
> +		.mask = DA9062AA_M_DVC_RDY_MASK,
> +	},
> +	[DA9061_IRQ_VDD_WARN] = {
> +		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
> +		.mask = DA9062AA_M_VDD_WARN_MASK,
> +	},
> +	/* EVENT C */
> +	[DA9061_IRQ_GPI0] = {
> +		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
> +		.mask = DA9062AA_M_GPI0_MASK,
> +	},
> +	[DA9061_IRQ_GPI1] = {
> +		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
> +		.mask = DA9062AA_M_GPI1_MASK,
> +	},
> +	[DA9061_IRQ_GPI2] = {
> +		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
> +		.mask = DA9062AA_M_GPI2_MASK,
> +	},
> +	[DA9061_IRQ_GPI3] = {
> +		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
> +		.mask = DA9062AA_M_GPI3_MASK,
> +	},
> +	[DA9061_IRQ_GPI4] = {
> +		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
> +		.mask = DA9062AA_M_GPI4_MASK,
> +	},
> +};
> +
> +static struct regmap_irq_chip da9061_irq_chip = {
> +	.name = "da9061-irq",
> +	.irqs = da9061_irqs,
> +	.num_irqs = DA9061_NUM_IRQ,
> +	.num_regs = 3,
> +	.status_base = DA9062AA_EVENT_A,
> +	.mask_base = DA9062AA_IRQ_MASK_A,
> +	.ack_base = DA9062AA_EVENT_A,
> +};
> +
>  static struct regmap_irq da9062_irqs[] = {
>  	/* EVENT A */
>  	[DA9062_IRQ_ONKEY] = {
> @@ -102,6 +166,57 @@ static struct regmap_irq_chip da9062_irq_chip = {
>  	.ack_base = DA9062AA_EVENT_A,
>  };
>
> +static struct resource da9061_core_resources[] = {
> +	DEFINE_RES_NAMED(DA9061_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
> +};
> +
> +static struct resource da9061_regulators_resources[] = {
> +	DEFINE_RES_NAMED(DA9061_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ),
> +};
> +
> +static struct resource da9061_thermal_resources[] = {
> +	DEFINE_RES_NAMED(DA9061_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ),
> +};
> +
> +static struct resource da9061_wdt_resources[] = {
> +	DEFINE_RES_NAMED(DA9061_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ),
> +};
> +
> +static struct resource da9061_onkey_resources[] = {
> +	DEFINE_RES_NAMED(DA9061_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
> +};
> +
> +static const struct mfd_cell da9061_devs[] = {
> +	{
> +		.name		= "da9061-core",
> +		.num_resources	= ARRAY_SIZE(da9061_core_resources),
> +		.resources	= da9061_core_resources,
> +	},
> +	{
> +		.name		= "da9062-regulators",
> +		.num_resources	= ARRAY_SIZE(da9061_regulators_resources),
> +		.resources	= da9061_regulators_resources,
> +	},
> +	{
> +		.name		= "da9061-watchdog",
> +		.num_resources	= ARRAY_SIZE(da9061_wdt_resources),
> +		.resources	= da9061_wdt_resources,
> +		.of_compatible  = "dlg,da9061-watchdog",
> +	},
> +	{
> +		.name		= "da9061-thermal",
> +		.num_resources	= ARRAY_SIZE(da9061_thermal_resources),
> +		.resources	= da9061_thermal_resources,
> +		.of_compatible  = "dlg,da9061-thermal",
> +	},
> +	{
> +		.name		= "da9061-onkey",
> +		.num_resources	= ARRAY_SIZE(da9061_onkey_resources),
> +		.resources	= da9061_onkey_resources,
> +		.of_compatible = "dlg,da9061-onkey",
> +	},
> +};
> +
>  static struct resource da9062_core_resources[] = {
>  	DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
>  };
> @@ -142,7 +257,7 @@ static const struct mfd_cell da9062_devs[] = {
>  		.name		= "da9062-watchdog",
>  		.num_resources	= ARRAY_SIZE(da9062_wdt_resources),
>  		.resources	= da9062_wdt_resources,
> -		.of_compatible  = "dlg,da9062-wdt",
> +		.of_compatible  = "dlg,da9062-watchdog",

Any particular reason why this compatible needs to be changed?

>  	},
>  	{
>  		.name		= "da9062-thermal",
> @@ -198,9 +313,10 @@ static int da9062_clear_fault_log(struct da9062 *chip)
>  	return ret;
>  }
>
> -static int da9062_get_device_type(struct da9062 *chip)
> +static int da9062_get_device_type(struct da9062 *chip, int *vrc)
>  {
> -	int device_id, variant_id, variant_mrc;
> +	int device_id, variant_id, variant_mrc, variant_vrc;
> +	char *type;
>  	int ret;
>
>  	ret = regmap_read(chip->regmap, DA9062AA_DEVICE_ID, &device_id);
> @@ -208,6 +324,7 @@ static int da9062_get_device_type(struct da9062 *chip)
>  		dev_err(chip->dev, "Cannot read chip ID.\n");
>  		return -EIO;
>  	}
> +
>  	if (device_id != DA9062_PMIC_DEVICE_ID) {
>  		dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
>  		return -ENODEV;
> @@ -219,9 +336,23 @@ static int da9062_get_device_type(struct da9062 *chip)
>  		return -EIO;
>  	}
>
> +	variant_vrc = (variant_id & DA9062AA_VRC_MASK) >> DA9062AA_VRC_SHIFT;
> +
> +	switch (variant_vrc) {
> +	case DA9062_PMIC_VARIANT_VRC_DA9061:
> +		type = "DA9061";
> +		break;
> +	case DA9062_PMIC_VARIANT_VRC_DA9062:
> +		type = "DA9062";
> +		break;
> +	default:
> +		type = "Unknown";
> +		break;
> +	}
> +
>  	dev_info(chip->dev,
> -		 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X)\n",
> -		 device_id, variant_id);
> +		 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n",
> +		 device_id, variant_id, type);
>
>  	variant_mrc = (variant_id & DA9062AA_MRC_MASK) >> DA9062AA_MRC_SHIFT;
>
> @@ -231,9 +362,239 @@ static int da9062_get_device_type(struct da9062 *chip)
>  		return -ENODEV;
>  	}
>
> +	*vrc = variant_vrc;
> +
>  	return ret;
>  }
>
> +static const struct regmap_range da9061_aa_readable_ranges[] = {
> +	{
> +		.range_min = DA9062AA_PAGE_CON,
> +		.range_max = DA9062AA_STATUS_B,
> +	}, {
> +		.range_min = DA9062AA_STATUS_D,
> +		.range_max = DA9062AA_EVENT_C,
> +	}, {
> +		.range_min = DA9062AA_IRQ_MASK_A,
> +		.range_max = DA9062AA_IRQ_MASK_C,
> +	}, {
> +		.range_min = DA9062AA_CONTROL_A,
> +		.range_max = DA9062AA_GPIO_4,
> +	}, {
> +		.range_min = DA9062AA_GPIO_WKUP_MODE,
> +		.range_max = DA9062AA_GPIO_OUT3_4,
> +	}, {
> +		.range_min = DA9062AA_BUCK1_CONT,
> +		.range_max = DA9062AA_BUCK4_CONT,
> +	}, {
> +		.range_min = DA9062AA_BUCK3_CONT,
> +		.range_max = DA9062AA_BUCK3_CONT,
> +	}, {
> +		.range_min = DA9062AA_LDO1_CONT,
> +		.range_max = DA9062AA_LDO4_CONT,
> +	}, {
> +		.range_min = DA9062AA_DVC_1,
> +		.range_max = DA9062AA_DVC_1,
> +	}, {
> +		.range_min = DA9062AA_SEQ,
> +		.range_max = DA9062AA_ID_4_3,
> +	}, {
> +		.range_min = DA9062AA_ID_12_11,
> +		.range_max = DA9062AA_ID_16_15,
> +	}, {
> +		.range_min = DA9062AA_ID_22_21,
> +		.range_max = DA9062AA_ID_32_31,
> +	}, {
> +		.range_min = DA9062AA_SEQ_A,
> +		.range_max = DA9062AA_WAIT,
> +	}, {
> +		.range_min = DA9062AA_RESET,
> +		.range_max = DA9062AA_BUCK_ILIM_C,
> +	}, {
> +		.range_min = DA9062AA_BUCK1_CFG,
> +		.range_max = DA9062AA_BUCK3_CFG,
> +	}, {
> +		.range_min = DA9062AA_VBUCK1_A,
> +		.range_max = DA9062AA_VBUCK4_A,
> +	}, {
> +		.range_min = DA9062AA_VBUCK3_A,
> +		.range_max = DA9062AA_VBUCK3_A,
> +	}, {
> +		.range_min = DA9062AA_VLDO1_A,
> +		.range_max = DA9062AA_VLDO4_A,
> +	}, {
> +		.range_min = DA9062AA_VBUCK1_B,
> +		.range_max = DA9062AA_VBUCK4_B,
> +	}, {
> +		.range_min = DA9062AA_VBUCK3_B,
> +		.range_max = DA9062AA_VBUCK3_B,
> +	}, {
> +		.range_min = DA9062AA_VLDO1_B,
> +		.range_max = DA9062AA_VLDO4_B,
> +	}, {
> +		.range_min = DA9062AA_BBAT_CONT,
> +		.range_max = DA9062AA_BBAT_CONT,
> +	}, {
> +		.range_min = DA9062AA_INTERFACE,
> +		.range_max = DA9062AA_CONFIG_E,
> +	}, {
> +		.range_min = DA9062AA_CONFIG_G,
> +		.range_max = DA9062AA_CONFIG_K,
> +	}, {
> +		.range_min = DA9062AA_CONFIG_M,
> +		.range_max = DA9062AA_CONFIG_M,
> +	}, {
> +		.range_min = DA9062AA_GP_ID_0,
> +		.range_max = DA9062AA_GP_ID_19,
> +	}, {
> +		.range_min = DA9062AA_DEVICE_ID,
> +		.range_max = DA9062AA_CONFIG_ID,
> +	},
> +};
> +
> +static const struct regmap_range da9061_aa_writeable_ranges[] = {
> +	{
> +		.range_min = DA9062AA_PAGE_CON,
> +		.range_max = DA9062AA_PAGE_CON,
> +	}, {
> +		.range_min = DA9062AA_FAULT_LOG,
> +		.range_max = DA9062AA_EVENT_C,
> +	}, {
> +		.range_min = DA9062AA_IRQ_MASK_A,
> +		.range_max = DA9062AA_IRQ_MASK_C,
> +	}, {
> +		.range_min = DA9062AA_CONTROL_A,
> +		.range_max = DA9062AA_GPIO_4,
> +	}, {
> +		.range_min = DA9062AA_GPIO_WKUP_MODE,
> +		.range_max = DA9062AA_GPIO_OUT3_4,
> +	}, {
> +		.range_min = DA9062AA_BUCK1_CONT,
> +		.range_max = DA9062AA_BUCK4_CONT,
> +	}, {
> +		.range_min = DA9062AA_BUCK3_CONT,
> +		.range_max = DA9062AA_BUCK3_CONT,
> +	}, {
> +		.range_min = DA9062AA_LDO1_CONT,
> +		.range_max = DA9062AA_LDO4_CONT,
> +	}, {
> +		.range_min = DA9062AA_DVC_1,
> +		.range_max = DA9062AA_DVC_1,
> +	}, {
> +		.range_min = DA9062AA_SEQ,
> +		.range_max = DA9062AA_ID_4_3,
> +	}, {
> +		.range_min = DA9062AA_ID_12_11,
> +		.range_max = DA9062AA_ID_16_15,
> +	}, {
> +		.range_min = DA9062AA_ID_22_21,
> +		.range_max = DA9062AA_ID_32_31,
> +	}, {
> +		.range_min = DA9062AA_SEQ_A,
> +		.range_max = DA9062AA_WAIT,
> +	}, {
> +		.range_min = DA9062AA_RESET,
> +		.range_max = DA9062AA_BUCK_ILIM_C,
> +	}, {
> +		.range_min = DA9062AA_BUCK1_CFG,
> +		.range_max = DA9062AA_BUCK3_CFG,
> +	}, {
> +		.range_min = DA9062AA_VBUCK1_A,
> +		.range_max = DA9062AA_VBUCK4_A,
> +	}, {
> +		.range_min = DA9062AA_VBUCK3_A,
> +		.range_max = DA9062AA_VBUCK3_A,
> +	}, {
> +		.range_min = DA9062AA_VLDO1_A,
> +		.range_max = DA9062AA_VLDO4_A,
> +	}, {
> +		.range_min = DA9062AA_VBUCK1_B,
> +		.range_max = DA9062AA_VBUCK4_B,
> +	}, {
> +		.range_min = DA9062AA_VBUCK3_B,
> +		.range_max = DA9062AA_VBUCK3_B,
> +	}, {
> +		.range_min = DA9062AA_VLDO1_B,
> +		.range_max = DA9062AA_VLDO4_B,
> +	}, {
> +		.range_min = DA9062AA_BBAT_CONT,
> +		.range_max = DA9062AA_BBAT_CONT,
> +	}, {
> +		.range_min = DA9062AA_GP_ID_0,
> +		.range_max = DA9062AA_GP_ID_19,
> +	},
> +};
> +
> +static const struct regmap_range da9061_aa_volatile_ranges[] = {
> +	{
> +		.range_min = DA9062AA_PAGE_CON,
> +		.range_max = DA9062AA_STATUS_B,
> +	}, {
> +		.range_min = DA9062AA_STATUS_D,
> +		.range_max = DA9062AA_EVENT_C,
> +	}, {
> +		.range_min = DA9062AA_CONTROL_A,
> +		.range_max = DA9062AA_CONTROL_B,
> +	}, {
> +		.range_min = DA9062AA_CONTROL_E,
> +		.range_max = DA9062AA_CONTROL_F,
> +	}, {
> +		.range_min = DA9062AA_BUCK1_CONT,
> +		.range_max = DA9062AA_BUCK4_CONT,
> +	}, {
> +		.range_min = DA9062AA_BUCK3_CONT,
> +		.range_max = DA9062AA_BUCK3_CONT,
> +	}, {
> +		.range_min = DA9062AA_LDO1_CONT,
> +		.range_max = DA9062AA_LDO4_CONT,
> +	}, {
> +		.range_min = DA9062AA_DVC_1,
> +		.range_max = DA9062AA_DVC_1,
> +	}, {
> +		.range_min = DA9062AA_SEQ,
> +		.range_max = DA9062AA_SEQ,
> +	},
> +};
> +
> +static const struct regmap_access_table da9061_aa_readable_table = {
> +	.yes_ranges = da9061_aa_readable_ranges,
> +	.n_yes_ranges = ARRAY_SIZE(da9061_aa_readable_ranges),
> +};
> +
> +static const struct regmap_access_table da9061_aa_writeable_table = {
> +	.yes_ranges = da9061_aa_writeable_ranges,
> +	.n_yes_ranges = ARRAY_SIZE(da9061_aa_writeable_ranges),
> +};
> +
> +static const struct regmap_access_table da9061_aa_volatile_table = {
> +	.yes_ranges = da9061_aa_volatile_ranges,
> +	.n_yes_ranges = ARRAY_SIZE(da9061_aa_volatile_ranges),
> +};
> +
> +static const struct regmap_range_cfg da9061_range_cfg[] = {
> +	{
> +		.range_min = DA9062AA_PAGE_CON,
> +		.range_max = DA9062AA_CONFIG_ID,
> +		.selector_reg = DA9062AA_PAGE_CON,
> +		.selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
> +		.selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
> +		.window_start = 0,
> +		.window_len = 256,
> +	}
> +};
> +
> +static struct regmap_config da9061_regmap_config = {
> +	.reg_bits = 8,
> +	.val_bits = 8,
> +	.ranges = da9061_range_cfg,
> +	.num_ranges = ARRAY_SIZE(da9061_range_cfg),
> +	.max_register = DA9062AA_CONFIG_ID,
> +	.cache_type = REGCACHE_RBTREE,
> +	.rd_table = &da9061_aa_readable_table,
> +	.wr_table = &da9061_aa_writeable_table,
> +	.volatile_table = &da9061_aa_volatile_table,
> +};
> +
>  static const struct regmap_range da9062_aa_readable_ranges[] = {
>  	{
>  		.range_min = DA9062AA_PAGE_CON,
> @@ -456,17 +817,39 @@ static struct regmap_config da9062_regmap_config = {
>  	.volatile_table = &da9062_aa_volatile_table,
>  };
>
> +static const struct of_device_id da9062_dt_ids[] = {
> +	{ .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, },
> +	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },

WARNING: DT compatible string "dlg,da9061" appears un-documented -- 
check ./Documentation/devicetree/bindings/
#622: FILE: drivers/mfd/da9062-core.c:822:
+	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },

Might want to re-order patches so that you have the compatibles 
documented before usage

> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, da9062_dt_ids);
> +
>  static int da9062_i2c_probe(struct i2c_client *i2c,
>  	const struct i2c_device_id *id)
>  {
>  	struct da9062 *chip;
> +	const struct of_device_id *match;
>  	unsigned int irq_base;
> +	const struct mfd_cell *cell;
> +	const struct regmap_irq_chip *irq_chip;
> +	const struct regmap_config *config;
> +	int cell_num;

No need of cell_num.

> +	int variant_vrc;
>  	int ret;
>
>  	chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
>  	if (!chip)
>  		return -ENOMEM;
>
> +	if (i2c->dev.of_node) {
> +		match = of_match_node(da9062_dt_ids, i2c->dev.of_node);
> +		if (!match)
> +			return -EINVAL;
> +
> +		chip->chip_type = (int)match->data;
> +	} else
> +		chip->chip_type = id->driver_data;
> +
>  	i2c_set_clientdata(i2c, chip);
>  	chip->dev = &i2c->dev;
>
> @@ -475,7 +858,25 @@ static int da9062_i2c_probe(struct i2c_client *i2c,
>  		return -EINVAL;
>  	}
>
> -	chip->regmap = devm_regmap_init_i2c(i2c, &da9062_regmap_config);
> +	switch (chip->chip_type) {
> +	case(COMPAT_TYPE_DA9061):
> +		cell = da9061_devs;
> +		cell_num = ARRAY_SIZE(da9061_devs);

No need of the above assignment

> +		irq_chip = &da9061_irq_chip;
> +		config = &da9061_regmap_config;
> +		break;
> +	case(COMPAT_TYPE_DA9062):
> +		cell = da9062_devs;
> +		cell_num = ARRAY_SIZE(da9062_devs);

No need of the above assignment

> +		irq_chip = &da9062_irq_chip;
> +		config = &da9062_regmap_config;
> +		break;
> +	default:
> +		dev_err(chip->dev, "Unrecognised chip type\n");
> +		return -ENODEV;
> +	};
> +
> +	chip->regmap = devm_regmap_init_i2c(i2c, config);
>  	if (IS_ERR(chip->regmap)) {
>  		ret = PTR_ERR(chip->regmap);
>  		dev_err(chip->dev, "Failed to allocate register map: %d\n",
> @@ -483,17 +884,31 @@ static int da9062_i2c_probe(struct i2c_client *i2c,
>  		return ret;
>  	}
>
> +	ret = da9062_get_device_type(chip, &variant_vrc);
> +	if (ret)
> +		return ret;
> +
> +	if (chip->chip_type == COMPAT_TYPE_DA9061 &&
> +	    variant_vrc != DA9062_PMIC_VARIANT_VRC_DA9061) {
> +		dev_err(chip->dev,
> +			"Expected DA9061 type mismatch with hardware");
> +		return -ENODEV;
> +	}
> +
> +	if (chip->chip_type == COMPAT_TYPE_DA9062 &&
> +	    variant_vrc != DA9062_PMIC_VARIANT_VRC_DA9062) {
> +		dev_err(chip->dev,
> +			"Expected DA9062 type mismatch with hardware");
> +		return -ENODEV;
> +	}
> +
>  	ret = da9062_clear_fault_log(chip);
>  	if (ret < 0)
>  		dev_warn(chip->dev, "Cannot clear fault log\n");
>
> -	ret = da9062_get_device_type(chip);
> -	if (ret)
> -		return ret;
> -
>  	ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
>  			IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
> -			-1, &da9062_irq_chip,
> +			-1, irq_chip,
>  			&chip->regmap_irq);
>  	if (ret) {
>  		dev_err(chip->dev, "Failed to request IRQ %d: %d\n",
> @@ -503,8 +918,8 @@ static int da9062_i2c_probe(struct i2c_client *i2c,
>
>  	irq_base = regmap_irq_chip_get_base(chip->regmap_irq);
>
> -	ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, da9062_devs,
> -			      ARRAY_SIZE(da9062_devs), NULL, irq_base,
> +	ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell,
> +			      cell_num, NULL, irq_base,

Use ARRAY_SIZE(cell) instead if cell_num

>  			      NULL);
>  	if (ret) {
>  		dev_err(chip->dev, "Cannot register child devices\n");
> @@ -526,17 +941,12 @@ static int da9062_i2c_remove(struct i2c_client *i2c)
>  }
>
>  static const struct i2c_device_id da9062_i2c_id[] = {
> -	{ "da9062", 0 },
> +	{ "da9062", COMPAT_TYPE_DA9062 },
> +	{ "da9061", COMPAT_TYPE_DA9061 },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(i2c, da9062_i2c_id);
>
> -static const struct of_device_id da9062_dt_ids[] = {
> -	{ .compatible = "dlg,da9062", },
> -	{ }
> -};
> -MODULE_DEVICE_TABLE(of, da9062_dt_ids);
> -
>  static struct i2c_driver da9062_i2c_driver = {
>  	.driver = {
>  		.name = "da9062",
> @@ -549,6 +959,6 @@ static struct i2c_driver da9062_i2c_driver = {
>
>  module_i2c_driver(da9062_i2c_driver);
>
> -MODULE_DESCRIPTION("Core device driver for Dialog DA9062");
> +MODULE_DESCRIPTION("Core device driver for Dialog DA9062 and DA9061");
>  MODULE_AUTHOR("Steve Twiss <stwiss.opensource@diasemi.com>");
>  MODULE_LICENSE("GPL");
> diff --git a/include/linux/mfd/da9062/core.h b/include/linux/mfd/da9062/core.h
> index 376ba84..199c524 100644
> --- a/include/linux/mfd/da9062/core.h
> +++ b/include/linux/mfd/da9062/core.h
> @@ -18,7 +18,31 @@
>  #include <linux/interrupt.h>
>  #include <linux/mfd/da9062/registers.h>
>
> -/* Interrupts */
> +enum da9062_compatible_types {
> +	COMPAT_TYPE_DA9061 = 1,
> +	COMPAT_TYPE_DA9062,
> +};
> +
> +enum da9061_irqs {
> +	/* IRQ A */
> +	DA9061_IRQ_ONKEY,
> +	DA9061_IRQ_WDG_WARN,
> +	DA9061_IRQ_SEQ_RDY,
> +	/* IRQ B*/
> +	DA9061_IRQ_TEMP,
> +	DA9061_IRQ_LDO_LIM,
> +	DA9061_IRQ_DVC_RDY,
> +	DA9061_IRQ_VDD_WARN,
> +	/* IRQ C */
> +	DA9061_IRQ_GPI0,
> +	DA9061_IRQ_GPI1,
> +	DA9061_IRQ_GPI2,
> +	DA9061_IRQ_GPI3,
> +	DA9061_IRQ_GPI4,
> +
> +	DA9061_NUM_IRQ,
> +};
> +
>  enum da9062_irqs {
>  	/* IRQ A */
>  	DA9062_IRQ_ONKEY,
> @@ -45,6 +69,7 @@ struct da9062 {
>  	struct device *dev;
>  	struct regmap *regmap;
>  	struct regmap_irq_chip_data *regmap_irq;
> +	enum da9062_compatible_types chip_type;
>  };
>
>  #endif /* __MFD_DA9062_CORE_H__ */
> diff --git a/include/linux/mfd/da9062/registers.h b/include/linux/mfd/da9062/registers.h
> index 97790d1..4457fdc 100644
> --- a/include/linux/mfd/da9062/registers.h
> +++ b/include/linux/mfd/da9062/registers.h
> @@ -18,6 +18,8 @@
>
>  #define DA9062_PMIC_DEVICE_ID		0x62
>  #define DA9062_PMIC_VARIANT_MRC_AA	0x01
> +#define DA9062_PMIC_VARIANT_VRC_DA9061	0x01
> +#define DA9062_PMIC_VARIANT_VRC_DA9062	0x02
>
>  #define DA9062_I2C_PAGE_SEL_SHIFT	1
>
>

Regards,
Keerthy
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Steve Twiss Oct. 6, 2016, 4:34 p.m. UTC | #2 
Hi,

On 06 October 2016 11:38, Keerthy [mailto:a0393675@ti.com], wrote:

> > regmap_config which lists the correct readble, writable and volatile
> 
> /s/readble/readable

Done

[...]

> >  static struct resource da9062_core_resources[] = {
> >  	DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN",
> IORESOURCE_IRQ),
> >  };
> > @@ -142,7 +257,7 @@ static const struct mfd_cell da9062_devs[] = {
> >  		.name		= "da9062-watchdog",
> >  		.num_resources	=
> ARRAY_SIZE(da9062_wdt_resources),
> >  		.resources	= da9062_wdt_resources,
> > -		.of_compatible  = "dlg,da9062-wdt",
> > +		.of_compatible  = "dlg,da9062-watchdog",
> 
> Any particular reason why this compatible needs to be changed?

Yes. It was incorrect in the original DA9062 submission.
The binding said "dlg,da9062-watchdog", but the MFD component implemented it
incorrectly as "dlg,da9062-wdt" in the da9062.txt binding file. This fixes that error. 

The watchdog driver did not use the compatible during probe for da9062. But, it now
checks the compatible string as part of  this patch set.

[...]

> > +static const struct of_device_id da9062_dt_ids[] = {
> > +	{ .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062,
> },
> > +	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061,
> },
> 
> WARNING: DT compatible string "dlg,da9061" appears un-documented --
> check ./Documentation/devicetree/bindings/
> #622: FILE: drivers/mfd/da9062-core.c:822:
> +	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061,
> },
> 
> Might want to re-order patches so that you have the compatibles
> documented before usage

Ah. I ordered them last because I thought the driver would need approval before
the device tree docs were accepted. On second look, that doesn't make much sense.

I will change my scripts to complete the checkpatch.pl on the e-mails to be sent to LKML
(instead of the whole files) so this sort of thing doesn't happen again.

I will re-order the patches from V1 when doing V2.

> > +	{ }
> > +};
> > +MODULE_DEVICE_TABLE(of, da9062_dt_ids);
> > +
> >  static int da9062_i2c_probe(struct i2c_client *i2c,
> >  	const struct i2c_device_id *id)
> >  {
> >  	struct da9062 *chip;
> > +	const struct of_device_id *match;
> >  	unsigned int irq_base;
> > +	const struct mfd_cell *cell;
> > +	const struct regmap_irq_chip *irq_chip;
> > +	const struct regmap_config *config;
> > +	int cell_num;
> 
> No need of cell_num.
[...]

> > +		cell_num = ARRAY_SIZE(da9061_devs);
> 
> No need of the above assignment
[...]

> > +		cell_num = ARRAY_SIZE(da9062_devs);
> 
> No need of the above assignment
> 
> > +	ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell,
> > +			      cell_num, NULL, irq_base,
> 
> Use ARRAY_SIZE(cell) instead if cell_num

Okay. Can do that.
It will appear in V2.

Regards,
Steve
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diff mbox

Patch

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2d1fb64..533798a 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -236,13 +236,14 @@  config MFD_DA9055
 	  called "da9055"
 
 config MFD_DA9062
-	tristate "Dialog Semiconductor DA9062 PMIC Support"
+	tristate "Dialog Semiconductor DA9062/61 PMIC Support"
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
 	depends on I2C
 	help
-	  Say yes here for support for the Dialog Semiconductor DA9062 PMIC.
+	  Say yes here for support for the Dialog Semiconductor DA9061 and
+	  DA9062 PMICs.
 	  This includes the I2C driver and core APIs.
 	  Additional drivers must be enabled in order to use the functionality
 	  of the device.
diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c
index 8f873866..bfbc065 100644
--- a/drivers/mfd/da9062-core.c
+++ b/drivers/mfd/da9062-core.c
@@ -1,5 +1,5 @@ 
 /*
- * Core, IRQ and I2C device driver for DA9062 PMIC
+ * Core, IRQ and I2C device driver for DA9062 and DA9061 PMICs
  * Copyright (C) 2015  Dialog Semiconductor Ltd.
  *
  * This program is free software; you can redistribute it and/or
@@ -30,6 +30,70 @@ 
 #define	DA9062_REG_EVENT_B_OFFSET	1
 #define	DA9062_REG_EVENT_C_OFFSET	2
 
+static struct regmap_irq da9061_irqs[] = {
+	/* EVENT A */
+	[DA9061_IRQ_ONKEY] = {
+		.reg_offset = DA9062_REG_EVENT_A_OFFSET,
+		.mask = DA9062AA_M_NONKEY_MASK,
+	},
+	[DA9061_IRQ_WDG_WARN] = {
+		.reg_offset = DA9062_REG_EVENT_A_OFFSET,
+		.mask = DA9062AA_M_WDG_WARN_MASK,
+	},
+	[DA9061_IRQ_SEQ_RDY] = {
+		.reg_offset = DA9062_REG_EVENT_A_OFFSET,
+		.mask = DA9062AA_M_SEQ_RDY_MASK,
+	},
+	/* EVENT B */
+	[DA9061_IRQ_TEMP] = {
+		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
+		.mask = DA9062AA_M_TEMP_MASK,
+	},
+	[DA9061_IRQ_LDO_LIM] = {
+		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
+		.mask = DA9062AA_M_LDO_LIM_MASK,
+	},
+	[DA9061_IRQ_DVC_RDY] = {
+		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
+		.mask = DA9062AA_M_DVC_RDY_MASK,
+	},
+	[DA9061_IRQ_VDD_WARN] = {
+		.reg_offset = DA9062_REG_EVENT_B_OFFSET,
+		.mask = DA9062AA_M_VDD_WARN_MASK,
+	},
+	/* EVENT C */
+	[DA9061_IRQ_GPI0] = {
+		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
+		.mask = DA9062AA_M_GPI0_MASK,
+	},
+	[DA9061_IRQ_GPI1] = {
+		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
+		.mask = DA9062AA_M_GPI1_MASK,
+	},
+	[DA9061_IRQ_GPI2] = {
+		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
+		.mask = DA9062AA_M_GPI2_MASK,
+	},
+	[DA9061_IRQ_GPI3] = {
+		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
+		.mask = DA9062AA_M_GPI3_MASK,
+	},
+	[DA9061_IRQ_GPI4] = {
+		.reg_offset = DA9062_REG_EVENT_C_OFFSET,
+		.mask = DA9062AA_M_GPI4_MASK,
+	},
+};
+
+static struct regmap_irq_chip da9061_irq_chip = {
+	.name = "da9061-irq",
+	.irqs = da9061_irqs,
+	.num_irqs = DA9061_NUM_IRQ,
+	.num_regs = 3,
+	.status_base = DA9062AA_EVENT_A,
+	.mask_base = DA9062AA_IRQ_MASK_A,
+	.ack_base = DA9062AA_EVENT_A,
+};
+
 static struct regmap_irq da9062_irqs[] = {
 	/* EVENT A */
 	[DA9062_IRQ_ONKEY] = {
@@ -102,6 +166,57 @@  static struct regmap_irq_chip da9062_irq_chip = {
 	.ack_base = DA9062AA_EVENT_A,
 };
 
+static struct resource da9061_core_resources[] = {
+	DEFINE_RES_NAMED(DA9061_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
+};
+
+static struct resource da9061_regulators_resources[] = {
+	DEFINE_RES_NAMED(DA9061_IRQ_LDO_LIM, 1, "LDO_LIM", IORESOURCE_IRQ),
+};
+
+static struct resource da9061_thermal_resources[] = {
+	DEFINE_RES_NAMED(DA9061_IRQ_TEMP, 1, "THERMAL", IORESOURCE_IRQ),
+};
+
+static struct resource da9061_wdt_resources[] = {
+	DEFINE_RES_NAMED(DA9061_IRQ_WDG_WARN, 1, "WD_WARN", IORESOURCE_IRQ),
+};
+
+static struct resource da9061_onkey_resources[] = {
+	DEFINE_RES_NAMED(DA9061_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
+};
+
+static const struct mfd_cell da9061_devs[] = {
+	{
+		.name		= "da9061-core",
+		.num_resources	= ARRAY_SIZE(da9061_core_resources),
+		.resources	= da9061_core_resources,
+	},
+	{
+		.name		= "da9062-regulators",
+		.num_resources	= ARRAY_SIZE(da9061_regulators_resources),
+		.resources	= da9061_regulators_resources,
+	},
+	{
+		.name		= "da9061-watchdog",
+		.num_resources	= ARRAY_SIZE(da9061_wdt_resources),
+		.resources	= da9061_wdt_resources,
+		.of_compatible  = "dlg,da9061-watchdog",
+	},
+	{
+		.name		= "da9061-thermal",
+		.num_resources	= ARRAY_SIZE(da9061_thermal_resources),
+		.resources	= da9061_thermal_resources,
+		.of_compatible  = "dlg,da9061-thermal",
+	},
+	{
+		.name		= "da9061-onkey",
+		.num_resources	= ARRAY_SIZE(da9061_onkey_resources),
+		.resources	= da9061_onkey_resources,
+		.of_compatible = "dlg,da9061-onkey",
+	},
+};
+
 static struct resource da9062_core_resources[] = {
 	DEFINE_RES_NAMED(DA9062_IRQ_VDD_WARN, 1, "VDD_WARN", IORESOURCE_IRQ),
 };
@@ -142,7 +257,7 @@  static const struct mfd_cell da9062_devs[] = {
 		.name		= "da9062-watchdog",
 		.num_resources	= ARRAY_SIZE(da9062_wdt_resources),
 		.resources	= da9062_wdt_resources,
-		.of_compatible  = "dlg,da9062-wdt",
+		.of_compatible  = "dlg,da9062-watchdog",
 	},
 	{
 		.name		= "da9062-thermal",
@@ -198,9 +313,10 @@  static int da9062_clear_fault_log(struct da9062 *chip)
 	return ret;
 }
 
-static int da9062_get_device_type(struct da9062 *chip)
+static int da9062_get_device_type(struct da9062 *chip, int *vrc)
 {
-	int device_id, variant_id, variant_mrc;
+	int device_id, variant_id, variant_mrc, variant_vrc;
+	char *type;
 	int ret;
 
 	ret = regmap_read(chip->regmap, DA9062AA_DEVICE_ID, &device_id);
@@ -208,6 +324,7 @@  static int da9062_get_device_type(struct da9062 *chip)
 		dev_err(chip->dev, "Cannot read chip ID.\n");
 		return -EIO;
 	}
+
 	if (device_id != DA9062_PMIC_DEVICE_ID) {
 		dev_err(chip->dev, "Invalid device ID: 0x%02x\n", device_id);
 		return -ENODEV;
@@ -219,9 +336,23 @@  static int da9062_get_device_type(struct da9062 *chip)
 		return -EIO;
 	}
 
+	variant_vrc = (variant_id & DA9062AA_VRC_MASK) >> DA9062AA_VRC_SHIFT;
+
+	switch (variant_vrc) {
+	case DA9062_PMIC_VARIANT_VRC_DA9061:
+		type = "DA9061";
+		break;
+	case DA9062_PMIC_VARIANT_VRC_DA9062:
+		type = "DA9062";
+		break;
+	default:
+		type = "Unknown";
+		break;
+	}
+
 	dev_info(chip->dev,
-		 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X)\n",
-		 device_id, variant_id);
+		 "Device detected (device-ID: 0x%02X, var-ID: 0x%02X, %s)\n",
+		 device_id, variant_id, type);
 
 	variant_mrc = (variant_id & DA9062AA_MRC_MASK) >> DA9062AA_MRC_SHIFT;
 
@@ -231,9 +362,239 @@  static int da9062_get_device_type(struct da9062 *chip)
 		return -ENODEV;
 	}
 
+	*vrc = variant_vrc;
+
 	return ret;
 }
 
+static const struct regmap_range da9061_aa_readable_ranges[] = {
+	{
+		.range_min = DA9062AA_PAGE_CON,
+		.range_max = DA9062AA_STATUS_B,
+	}, {
+		.range_min = DA9062AA_STATUS_D,
+		.range_max = DA9062AA_EVENT_C,
+	}, {
+		.range_min = DA9062AA_IRQ_MASK_A,
+		.range_max = DA9062AA_IRQ_MASK_C,
+	}, {
+		.range_min = DA9062AA_CONTROL_A,
+		.range_max = DA9062AA_GPIO_4,
+	}, {
+		.range_min = DA9062AA_GPIO_WKUP_MODE,
+		.range_max = DA9062AA_GPIO_OUT3_4,
+	}, {
+		.range_min = DA9062AA_BUCK1_CONT,
+		.range_max = DA9062AA_BUCK4_CONT,
+	}, {
+		.range_min = DA9062AA_BUCK3_CONT,
+		.range_max = DA9062AA_BUCK3_CONT,
+	}, {
+		.range_min = DA9062AA_LDO1_CONT,
+		.range_max = DA9062AA_LDO4_CONT,
+	}, {
+		.range_min = DA9062AA_DVC_1,
+		.range_max = DA9062AA_DVC_1,
+	}, {
+		.range_min = DA9062AA_SEQ,
+		.range_max = DA9062AA_ID_4_3,
+	}, {
+		.range_min = DA9062AA_ID_12_11,
+		.range_max = DA9062AA_ID_16_15,
+	}, {
+		.range_min = DA9062AA_ID_22_21,
+		.range_max = DA9062AA_ID_32_31,
+	}, {
+		.range_min = DA9062AA_SEQ_A,
+		.range_max = DA9062AA_WAIT,
+	}, {
+		.range_min = DA9062AA_RESET,
+		.range_max = DA9062AA_BUCK_ILIM_C,
+	}, {
+		.range_min = DA9062AA_BUCK1_CFG,
+		.range_max = DA9062AA_BUCK3_CFG,
+	}, {
+		.range_min = DA9062AA_VBUCK1_A,
+		.range_max = DA9062AA_VBUCK4_A,
+	}, {
+		.range_min = DA9062AA_VBUCK3_A,
+		.range_max = DA9062AA_VBUCK3_A,
+	}, {
+		.range_min = DA9062AA_VLDO1_A,
+		.range_max = DA9062AA_VLDO4_A,
+	}, {
+		.range_min = DA9062AA_VBUCK1_B,
+		.range_max = DA9062AA_VBUCK4_B,
+	}, {
+		.range_min = DA9062AA_VBUCK3_B,
+		.range_max = DA9062AA_VBUCK3_B,
+	}, {
+		.range_min = DA9062AA_VLDO1_B,
+		.range_max = DA9062AA_VLDO4_B,
+	}, {
+		.range_min = DA9062AA_BBAT_CONT,
+		.range_max = DA9062AA_BBAT_CONT,
+	}, {
+		.range_min = DA9062AA_INTERFACE,
+		.range_max = DA9062AA_CONFIG_E,
+	}, {
+		.range_min = DA9062AA_CONFIG_G,
+		.range_max = DA9062AA_CONFIG_K,
+	}, {
+		.range_min = DA9062AA_CONFIG_M,
+		.range_max = DA9062AA_CONFIG_M,
+	}, {
+		.range_min = DA9062AA_GP_ID_0,
+		.range_max = DA9062AA_GP_ID_19,
+	}, {
+		.range_min = DA9062AA_DEVICE_ID,
+		.range_max = DA9062AA_CONFIG_ID,
+	},
+};
+
+static const struct regmap_range da9061_aa_writeable_ranges[] = {
+	{
+		.range_min = DA9062AA_PAGE_CON,
+		.range_max = DA9062AA_PAGE_CON,
+	}, {
+		.range_min = DA9062AA_FAULT_LOG,
+		.range_max = DA9062AA_EVENT_C,
+	}, {
+		.range_min = DA9062AA_IRQ_MASK_A,
+		.range_max = DA9062AA_IRQ_MASK_C,
+	}, {
+		.range_min = DA9062AA_CONTROL_A,
+		.range_max = DA9062AA_GPIO_4,
+	}, {
+		.range_min = DA9062AA_GPIO_WKUP_MODE,
+		.range_max = DA9062AA_GPIO_OUT3_4,
+	}, {
+		.range_min = DA9062AA_BUCK1_CONT,
+		.range_max = DA9062AA_BUCK4_CONT,
+	}, {
+		.range_min = DA9062AA_BUCK3_CONT,
+		.range_max = DA9062AA_BUCK3_CONT,
+	}, {
+		.range_min = DA9062AA_LDO1_CONT,
+		.range_max = DA9062AA_LDO4_CONT,
+	}, {
+		.range_min = DA9062AA_DVC_1,
+		.range_max = DA9062AA_DVC_1,
+	}, {
+		.range_min = DA9062AA_SEQ,
+		.range_max = DA9062AA_ID_4_3,
+	}, {
+		.range_min = DA9062AA_ID_12_11,
+		.range_max = DA9062AA_ID_16_15,
+	}, {
+		.range_min = DA9062AA_ID_22_21,
+		.range_max = DA9062AA_ID_32_31,
+	}, {
+		.range_min = DA9062AA_SEQ_A,
+		.range_max = DA9062AA_WAIT,
+	}, {
+		.range_min = DA9062AA_RESET,
+		.range_max = DA9062AA_BUCK_ILIM_C,
+	}, {
+		.range_min = DA9062AA_BUCK1_CFG,
+		.range_max = DA9062AA_BUCK3_CFG,
+	}, {
+		.range_min = DA9062AA_VBUCK1_A,
+		.range_max = DA9062AA_VBUCK4_A,
+	}, {
+		.range_min = DA9062AA_VBUCK3_A,
+		.range_max = DA9062AA_VBUCK3_A,
+	}, {
+		.range_min = DA9062AA_VLDO1_A,
+		.range_max = DA9062AA_VLDO4_A,
+	}, {
+		.range_min = DA9062AA_VBUCK1_B,
+		.range_max = DA9062AA_VBUCK4_B,
+	}, {
+		.range_min = DA9062AA_VBUCK3_B,
+		.range_max = DA9062AA_VBUCK3_B,
+	}, {
+		.range_min = DA9062AA_VLDO1_B,
+		.range_max = DA9062AA_VLDO4_B,
+	}, {
+		.range_min = DA9062AA_BBAT_CONT,
+		.range_max = DA9062AA_BBAT_CONT,
+	}, {
+		.range_min = DA9062AA_GP_ID_0,
+		.range_max = DA9062AA_GP_ID_19,
+	},
+};
+
+static const struct regmap_range da9061_aa_volatile_ranges[] = {
+	{
+		.range_min = DA9062AA_PAGE_CON,
+		.range_max = DA9062AA_STATUS_B,
+	}, {
+		.range_min = DA9062AA_STATUS_D,
+		.range_max = DA9062AA_EVENT_C,
+	}, {
+		.range_min = DA9062AA_CONTROL_A,
+		.range_max = DA9062AA_CONTROL_B,
+	}, {
+		.range_min = DA9062AA_CONTROL_E,
+		.range_max = DA9062AA_CONTROL_F,
+	}, {
+		.range_min = DA9062AA_BUCK1_CONT,
+		.range_max = DA9062AA_BUCK4_CONT,
+	}, {
+		.range_min = DA9062AA_BUCK3_CONT,
+		.range_max = DA9062AA_BUCK3_CONT,
+	}, {
+		.range_min = DA9062AA_LDO1_CONT,
+		.range_max = DA9062AA_LDO4_CONT,
+	}, {
+		.range_min = DA9062AA_DVC_1,
+		.range_max = DA9062AA_DVC_1,
+	}, {
+		.range_min = DA9062AA_SEQ,
+		.range_max = DA9062AA_SEQ,
+	},
+};
+
+static const struct regmap_access_table da9061_aa_readable_table = {
+	.yes_ranges = da9061_aa_readable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(da9061_aa_readable_ranges),
+};
+
+static const struct regmap_access_table da9061_aa_writeable_table = {
+	.yes_ranges = da9061_aa_writeable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(da9061_aa_writeable_ranges),
+};
+
+static const struct regmap_access_table da9061_aa_volatile_table = {
+	.yes_ranges = da9061_aa_volatile_ranges,
+	.n_yes_ranges = ARRAY_SIZE(da9061_aa_volatile_ranges),
+};
+
+static const struct regmap_range_cfg da9061_range_cfg[] = {
+	{
+		.range_min = DA9062AA_PAGE_CON,
+		.range_max = DA9062AA_CONFIG_ID,
+		.selector_reg = DA9062AA_PAGE_CON,
+		.selector_mask = 1 << DA9062_I2C_PAGE_SEL_SHIFT,
+		.selector_shift = DA9062_I2C_PAGE_SEL_SHIFT,
+		.window_start = 0,
+		.window_len = 256,
+	}
+};
+
+static struct regmap_config da9061_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.ranges = da9061_range_cfg,
+	.num_ranges = ARRAY_SIZE(da9061_range_cfg),
+	.max_register = DA9062AA_CONFIG_ID,
+	.cache_type = REGCACHE_RBTREE,
+	.rd_table = &da9061_aa_readable_table,
+	.wr_table = &da9061_aa_writeable_table,
+	.volatile_table = &da9061_aa_volatile_table,
+};
+
 static const struct regmap_range da9062_aa_readable_ranges[] = {
 	{
 		.range_min = DA9062AA_PAGE_CON,
@@ -456,17 +817,39 @@  static struct regmap_config da9062_regmap_config = {
 	.volatile_table = &da9062_aa_volatile_table,
 };
 
+static const struct of_device_id da9062_dt_ids[] = {
+	{ .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, },
+	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, da9062_dt_ids);
+
 static int da9062_i2c_probe(struct i2c_client *i2c,
 	const struct i2c_device_id *id)
 {
 	struct da9062 *chip;
+	const struct of_device_id *match;
 	unsigned int irq_base;
+	const struct mfd_cell *cell;
+	const struct regmap_irq_chip *irq_chip;
+	const struct regmap_config *config;
+	int cell_num;
+	int variant_vrc;
 	int ret;
 
 	chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
 
+	if (i2c->dev.of_node) {
+		match = of_match_node(da9062_dt_ids, i2c->dev.of_node);
+		if (!match)
+			return -EINVAL;
+
+		chip->chip_type = (int)match->data;
+	} else
+		chip->chip_type = id->driver_data;
+
 	i2c_set_clientdata(i2c, chip);
 	chip->dev = &i2c->dev;
 
@@ -475,7 +858,25 @@  static int da9062_i2c_probe(struct i2c_client *i2c,
 		return -EINVAL;
 	}
 
-	chip->regmap = devm_regmap_init_i2c(i2c, &da9062_regmap_config);
+	switch (chip->chip_type) {
+	case(COMPAT_TYPE_DA9061):
+		cell = da9061_devs;
+		cell_num = ARRAY_SIZE(da9061_devs);
+		irq_chip = &da9061_irq_chip;
+		config = &da9061_regmap_config;
+		break;
+	case(COMPAT_TYPE_DA9062):
+		cell = da9062_devs;
+		cell_num = ARRAY_SIZE(da9062_devs);
+		irq_chip = &da9062_irq_chip;
+		config = &da9062_regmap_config;
+		break;
+	default:
+		dev_err(chip->dev, "Unrecognised chip type\n");
+		return -ENODEV;
+	};
+
+	chip->regmap = devm_regmap_init_i2c(i2c, config);
 	if (IS_ERR(chip->regmap)) {
 		ret = PTR_ERR(chip->regmap);
 		dev_err(chip->dev, "Failed to allocate register map: %d\n",
@@ -483,17 +884,31 @@  static int da9062_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
+	ret = da9062_get_device_type(chip, &variant_vrc);
+	if (ret)
+		return ret;
+
+	if (chip->chip_type == COMPAT_TYPE_DA9061 &&
+	    variant_vrc != DA9062_PMIC_VARIANT_VRC_DA9061) {
+		dev_err(chip->dev,
+			"Expected DA9061 type mismatch with hardware");
+		return -ENODEV;
+	}
+
+	if (chip->chip_type == COMPAT_TYPE_DA9062 &&
+	    variant_vrc != DA9062_PMIC_VARIANT_VRC_DA9062) {
+		dev_err(chip->dev,
+			"Expected DA9062 type mismatch with hardware");
+		return -ENODEV;
+	}
+
 	ret = da9062_clear_fault_log(chip);
 	if (ret < 0)
 		dev_warn(chip->dev, "Cannot clear fault log\n");
 
-	ret = da9062_get_device_type(chip);
-	if (ret)
-		return ret;
-
 	ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
 			IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
-			-1, &da9062_irq_chip,
+			-1, irq_chip,
 			&chip->regmap_irq);
 	if (ret) {
 		dev_err(chip->dev, "Failed to request IRQ %d: %d\n",
@@ -503,8 +918,8 @@  static int da9062_i2c_probe(struct i2c_client *i2c,
 
 	irq_base = regmap_irq_chip_get_base(chip->regmap_irq);
 
-	ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, da9062_devs,
-			      ARRAY_SIZE(da9062_devs), NULL, irq_base,
+	ret = mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE, cell,
+			      cell_num, NULL, irq_base,
 			      NULL);
 	if (ret) {
 		dev_err(chip->dev, "Cannot register child devices\n");
@@ -526,17 +941,12 @@  static int da9062_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id da9062_i2c_id[] = {
-	{ "da9062", 0 },
+	{ "da9062", COMPAT_TYPE_DA9062 },
+	{ "da9061", COMPAT_TYPE_DA9061 },
 	{ },
 };
 MODULE_DEVICE_TABLE(i2c, da9062_i2c_id);
 
-static const struct of_device_id da9062_dt_ids[] = {
-	{ .compatible = "dlg,da9062", },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, da9062_dt_ids);
-
 static struct i2c_driver da9062_i2c_driver = {
 	.driver = {
 		.name = "da9062",
@@ -549,6 +959,6 @@  static struct i2c_driver da9062_i2c_driver = {
 
 module_i2c_driver(da9062_i2c_driver);
 
-MODULE_DESCRIPTION("Core device driver for Dialog DA9062");
+MODULE_DESCRIPTION("Core device driver for Dialog DA9062 and DA9061");
 MODULE_AUTHOR("Steve Twiss <stwiss.opensource@diasemi.com>");
 MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/da9062/core.h b/include/linux/mfd/da9062/core.h
index 376ba84..199c524 100644
--- a/include/linux/mfd/da9062/core.h
+++ b/include/linux/mfd/da9062/core.h
@@ -18,7 +18,31 @@ 
 #include <linux/interrupt.h>
 #include <linux/mfd/da9062/registers.h>
 
-/* Interrupts */
+enum da9062_compatible_types {
+	COMPAT_TYPE_DA9061 = 1,
+	COMPAT_TYPE_DA9062,
+};
+
+enum da9061_irqs {
+	/* IRQ A */
+	DA9061_IRQ_ONKEY,
+	DA9061_IRQ_WDG_WARN,
+	DA9061_IRQ_SEQ_RDY,
+	/* IRQ B*/
+	DA9061_IRQ_TEMP,
+	DA9061_IRQ_LDO_LIM,
+	DA9061_IRQ_DVC_RDY,
+	DA9061_IRQ_VDD_WARN,
+	/* IRQ C */
+	DA9061_IRQ_GPI0,
+	DA9061_IRQ_GPI1,
+	DA9061_IRQ_GPI2,
+	DA9061_IRQ_GPI3,
+	DA9061_IRQ_GPI4,
+
+	DA9061_NUM_IRQ,
+};
+
 enum da9062_irqs {
 	/* IRQ A */
 	DA9062_IRQ_ONKEY,
@@ -45,6 +69,7 @@  struct da9062 {
 	struct device *dev;
 	struct regmap *regmap;
 	struct regmap_irq_chip_data *regmap_irq;
+	enum da9062_compatible_types chip_type;
 };
 
 #endif /* __MFD_DA9062_CORE_H__ */
diff --git a/include/linux/mfd/da9062/registers.h b/include/linux/mfd/da9062/registers.h
index 97790d1..4457fdc 100644
--- a/include/linux/mfd/da9062/registers.h
+++ b/include/linux/mfd/da9062/registers.h
@@ -18,6 +18,8 @@ 
 
 #define DA9062_PMIC_DEVICE_ID		0x62
 #define DA9062_PMIC_VARIANT_MRC_AA	0x01
+#define DA9062_PMIC_VARIANT_VRC_DA9061	0x01
+#define DA9062_PMIC_VARIANT_VRC_DA9062	0x02
 
 #define DA9062_I2C_PAGE_SEL_SHIFT	1