da9061: DA9061 driver submission

From: Steve Twiss <[email protected]>

Device tree binding information for DA9062 and DA9061 thermal junction temperature monitor.

Binding descriptions for the DA9061 and DA9062 thermal TJUNC supervisor device driver, using a single THERMAL_TRIP_HOT trip-wire and allowing for a configurable polling period for over-temperature polling.

This patch also adds two examples, one for DA9062 and one for DA9061. The DA9061 example uses a fall-back compatible string for the DA9062.

Signed-off-by Steve Twiss <[email protected]>

---
This patch applies against linux-next and v4.9

v4 -> v5
- Rebased from v4.8 to v4.9
- Updates from comments by Eduardo Valentin
- Replace vendor defined dlg,tjunc-temp-polling-period-ms with standard thermal core polling-delay-passive as part of the device tree initialisation
- Remove Acked-by Rob Herring

From: Steve Twiss <[email protected]>

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 readable, 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.

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

Signed-off-by Steve Twiss <[email protected]>

---
This patch applies against linux-next and v4.9

v4 -> v5
- NO CODE CHANGE
- Rebased from v4.8 to v4.9

v3 -> v4
- Patch renamed from [PATCH V3 5/9] to [PATCH V4 4/8]
- Removed DEFINE_RES_NAMED() macros for DA9061 resources and replaced them with DEFINE_RES_IRQ_NAMED().
- Removed whitespace
- Reverted change for badly defined mfd_cell da9062_devs of_compatible string from "dlg,da9062-watchdog" back to "dlg,da9062-wdt"

v2 -> v3
- NO CODE CHANGE
- Patch renamed from [PATCH V2 05/10] to [PATCH V3 5/9]

v1 -> v2
- Patch renamed from [PATCH V1 01/10] to [PATCH V2 05/10] -- these changes were made to fix checkpatch warnings caused by the patch set dependency order
- Fixed typo in the commit message "readble" to "readable"
- Removed the explicit cross-check to decide if there is a conflict between the device tree compatible string and the hardware definition. This patch assumes the device tree is correctly written and therefore removes the need for a hardware/DT sanity check.
- Removed extra semicolon in drivers/mfd/da9062-core.c:877
- Re-write compatible entries into numerical order

Lee,

Changes as described in the version history above.

As previously:
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            | 424 +++++++++++++++++++++++++++++++++--
 include/linux/mfd/da9062/core.h      |  27 ++-
 include/linux/mfd/da9062/registers.h |   2 +
 4 files changed, 439 insertions(+), 19 deletions(-)

drivers/mfd/Kconfig +3 -2

index c6df644..a1a780c 100644
@@ -246,13 +246,14 @@ 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.

drivers/mfd/da9062-core.c +362 -4

index 8f873866..4b5f70f 100644
@@ -1,5 +1,5 @@
 /*
- * Core, IRQ and I2C device driver for DA9062 PMIC
+ * Core, IRQ and I2C device driver for DA9061 and DA9062 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 @@
 	.ack_base = DA9062AA_EVENT_A,
 };
 
+static struct resource da9061_core_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"),
+};
+
+static struct resource da9061_regulators_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"),
+};
+
+static struct resource da9061_thermal_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"),
+};
+
+static struct resource da9061_wdt_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"),
+};
+
+static struct resource da9061_onkey_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"),
+};
+
+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),
 };

@@ -200,7 +315,8 @@ static int da9062_clear_fault_log(struct da9062 *chip)
 
 static int da9062_get_device_type(struct da9062 *chip)
 {
-	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);

@@ -219,9 +335,23 @@ 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;
 

@@ -234,6 +364,234 @@ static int da9062_get_device_type(struct da9062 *chip)
 	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,

drivers/mfd/da9062-core.c +9 -0

+	{ }
+};
+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 ret;
 
 	chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)

drivers/mfd/da9062-core.c +22 -4

 	i2c_set_clientdata(i2c, chip);
 	chip->dev = &i2c->dev;
 

@@ -475,7 +854,25 @@ 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",

@@ -493,7 +890,7 @@ static int da9062_i2c_probe(struct i2c_client *i2c,
 
 	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 +900,8 @@ 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");

drivers/mfd/da9062-core.c +1 -7

 	{ },
 };
 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 +941,6 @@ static int da9062_i2c_remove(struct i2c_client *i2c)
 
 module_i2c_driver(da9062_i2c_driver);
 
-MODULE_DESCRIPTION("Core device driver for Dialog DA9062");
+MODULE_DESCRIPTION("Core device driver for Dialog DA9061 and DA9062");
 MODULE_AUTHOR("Steve Twiss <[email protected]>");
 MODULE_LICENSE("GPL");

include/linux/mfd/da9062/core.h +26 -1

index 376ba84..199c524 100644
@@ -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__ */

include/linux/mfd/da9062/registers.h +2 -0

index 97790d1..4457fdc 100644
@@ -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
 

Subject: Re: [PATCH V5 4/8] mfd: da9061: MFD core support

Quoted 1 line · Steve Twiss

From: Steve Twiss <[email protected]>

Review

Quoted 2 lines

(quoted diff) +2 -0

+static const struct of_device_id da9062_dt_ids[] = {
+	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061,

},

Review

Quoted 1 line

(quoted diff) +1 -0

+	{ .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062,

},

It looks like this device can dynamically obtain this information from the device. Please use that method instead.

drivers/mfd/da9062-core.c static int da9062_get_device_type(struct da9062 *chip) · line 847

Quoted 8 lines

drivers/mfd/da9062-core.c +8 -0

+	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;

Please obtain this information from DA9062AA_VARIANT_ID.

drivers/mfd/da9062-core.c static int da9062_i2c_remove(struct i2c_client *i2c) · line 927

Quoted 4 lines

static const struct i2c_device_id da9062_i2c_id[] = {

drivers/mfd/da9062-core.c +2 -1

-	{ "da9062", 0 },
+	{ "da9061", COMPAT_TYPE_DA9061 },
+	{ "da9062", COMPAT_TYPE_DA9062 },

This too.

Hi Lee,

Quoted 3 lines · Lee Jones

Subject: Re: [PATCH V5 4/8] mfd: da9061: MFD core support

Quoted 1 line · Steve Twiss

From: Steve Twiss <[email protected]>

[...]

Quoted 8 lines

Review

Quoted 2 lines

(quoted diff) +2 -0

+static const struct of_device_id da9062_dt_ids[] = {
+	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061,

},

Review

Quoted 1 line

(quoted diff) +1 -0

+	{ .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062,

},

It looks like this device can dynamically obtain this information from the device. Please use that method instead.

As I mentioned in an earlier post,
https://lkml.org/lkml/2016/11/7/418

The 61/62 device type has been defined by the device tree in this case, and that definition is used to set the register map. With the regmap defined, access to the registers is then possible.

It is not possible to detect the device type automatically in this case because it suggests a predefined regmap.

This is the reason I define the chip type (DA9061 or DA9062) in the device tree and then assign the correct regmap first before accessing any registers.

Quoted 10 lines

drivers/mfd/da9062-core.c static int da9062_get_device_type(struct da9062 *chip) · line 847

Quoted 8 lines

drivers/mfd/da9062-core.c +8 -0

+	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;

Please obtain this information from DA9062AA_VARIANT_ID.

The variant ID does contain the information about whether it is a 61 or 62, but in order to read the register the regmap definition needs to be defined first.

[...]

Quoted 6 lines

drivers/mfd/da9062-core.c static int da9062_i2c_remove(struct i2c_client *i2c) · line 927

Quoted 4 lines

static const struct i2c_device_id da9062_i2c_id[] = {

drivers/mfd/da9062-core.c +2 -1

-	{ "da9062", 0 },
+	{ "da9061", COMPAT_TYPE_DA9061 },
+	{ "da9062", COMPAT_TYPE_DA9062 },

This too.

Regards,
Steve

From: Steve Twiss <[email protected]>

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 readable, 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.

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

Signed-off-by Steve Twiss <[email protected]>

---
This patch applies against linux-next and v4.9

v4 -> v5
- NO CODE CHANGE
- Rebased from v4.8 to v4.9

v3 -> v4
- Patch renamed from [PATCH V3 5/9] to [PATCH V4 4/8]
- Removed DEFINE_RES_NAMED() macros for DA9061 resources and replaced them with DEFINE_RES_IRQ_NAMED().
- Removed whitespace
- Reverted change for badly defined mfd_cell da9062_devs of_compatible string from "dlg,da9062-watchdog" back to "dlg,da9062-wdt"

v2 -> v3
- NO CODE CHANGE
- Patch renamed from [PATCH V2 05/10] to [PATCH V3 5/9]

v1 -> v2
- Patch renamed from [PATCH V1 01/10] to [PATCH V2 05/10] -- these changes were made to fix checkpatch warnings caused by the patch set dependency order
- Fixed typo in the commit message "readble" to "readable"
- Removed the explicit cross-check to decide if there is a conflict between the device tree compatible string and the hardware definition. This patch assumes the device tree is correctly written and therefore removes the need for a hardware/DT sanity check.
- Removed extra semicolon in drivers/mfd/da9062-core.c:877
- Re-write compatible entries into numerical order

Lee,

Changes as described in the version history above.

As previously:
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            | 424 +++++++++++++++++++++++++++++++++--
 include/linux/mfd/da9062/core.h      |  27 ++-
 include/linux/mfd/da9062/registers.h |   2 +
 4 files changed, 439 insertions(+), 19 deletions(-)

drivers/mfd/Kconfig +3 -2

index c6df644..a1a780c 100644
@@ -246,13 +246,14 @@ 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.

drivers/mfd/da9062-core.c +408 -16

index 8f873866..4b5f70f 100644
@@ -1,5 +1,5 @@
 /*
- * Core, IRQ and I2C device driver for DA9062 PMIC
+ * Core, IRQ and I2C device driver for DA9061 and DA9062 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 @@
 	.ack_base = DA9062AA_EVENT_A,
 };
 
+static struct resource da9061_core_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_VDD_WARN, "VDD_WARN"),
+};
+
+static struct resource da9061_regulators_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_LDO_LIM, "LDO_LIM"),
+};
+
+static struct resource da9061_thermal_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_TEMP, "THERMAL"),
+};
+
+static struct resource da9061_wdt_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_WDG_WARN, "WD_WARN"),
+};
+
+static struct resource da9061_onkey_resources[] = {
+	DEFINE_RES_IRQ_NAMED(DA9061_IRQ_ONKEY, "ONKEY"),
+};
+
+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),
 };

@@ -200,7 +315,8 @@ static int da9062_clear_fault_log(struct da9062 *chip)
 
 static int da9062_get_device_type(struct da9062 *chip)
 {
-	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);

@@ -219,9 +335,23 @@ 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;
 

@@ -234,6 +364,234 @@ static int da9062_get_device_type(struct da9062 *chip)
 	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 +814,38 @@ static int da9062_get_device_type(struct da9062 *chip)
 	.volatile_table = &da9062_aa_volatile_table,
 };
 
+static const struct of_device_id da9062_dt_ids[] = {
+	{ .compatible = "dlg,da9061", .data = (void *)COMPAT_TYPE_DA9061, },
+	{ .compatible = "dlg,da9062", .data = (void *)COMPAT_TYPE_DA9062, },
+	{ }
+};
+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 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 +854,25 @@ 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",

@@ -493,7 +890,7 @@ static int da9062_i2c_probe(struct i2c_client *i2c,
 
 	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 +900,8 @@ 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 +923,12 @@ static int da9062_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id da9062_i2c_id[] = {
-	{ "da9062", 0 },
+	{ "da9061", COMPAT_TYPE_DA9061 },
+	{ "da9062", COMPAT_TYPE_DA9062 },
 	{ },
 };
 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 +941,6 @@ static int da9062_i2c_remove(struct i2c_client *i2c)
 
 module_i2c_driver(da9062_i2c_driver);
 
-MODULE_DESCRIPTION("Core device driver for Dialog DA9062");
+MODULE_DESCRIPTION("Core device driver for Dialog DA9061 and DA9062");
 MODULE_AUTHOR("Steve Twiss <[email protected]>");
 MODULE_LICENSE("GPL");

include/linux/mfd/da9062/core.h +26 -1

index 376ba84..199c524 100644
@@ -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__ */

include/linux/mfd/da9062/registers.h +2 -0

index 97790d1..4457fdc 100644
@@ -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