[PATCH v7 18/24] mfd: max77686: Add Maxim 77802 PMIC support

From: Javier Martinez Canillas
Date: Fri Jul 04 2014 - 16:27:56 EST

Maxim MAX77802 is a power management chip that contains 10 high
efficiency Buck regulators, 32 Low-dropout (LDO) regulators used
to power up application processors and peripherals, a 2-channel
32kHz clock outputs, a Real-Time-Clock (RTC) and a I2C interface
to program the individual regulators, clocks outputs and the RTC.

This patch adds support for MAX77802 to the MAX77686 driver and is
based on a driver added to the Chrome OS kernel 3.8 by Simon Glass.

Signed-off-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
---

Changes since v6:
- Fix comments grammar. Suggested by Krzysztof Kozlowski.
- Only unregister the RTC i2c device if the type is MAX77686.
Suggested by Krzysztof Kozlowski.

Changes since v5:
- Extend the 77686 driver to support 77802 instead of adding a new driver.
Suggested by Lee Jones.

Changes since v4:
- Use consistent expressions when checking for NULL values.
Suggested by Krzysztof Kozlowski.
- Remove unused defines. Suggested by Krzysztof Kozlowski.
- Explain why IRQ is disabled on suspend. Suggested by Krzysztof Kozlowski.

Changes since v3:
- Remove unnecessary OOM error message since the mm subsystem already logs it.

Changes since v2:
- Split the DT binding docs in a separate patch and improve the documentation.
Suggested by Mark Brown.
- Add all the devices in the MFD driver instead of doing in separate patches.
Suggested by Mark Brown.

Changes since v1:
- Convert max77{686,802} to regmap irq API and get rid of max77{686,802}-irq.c
Suggested by Krzysztof Kozlowski.
- Don't protect max77802 mfd_cells using Kconfig options since mfd core omits
devices that don't match. Suggested by Lee Jones.
- Change mfd driver to be tristate instead of boolean. Suggested by Mark Brown.
- Change binding "voltage-regulators" property to "regulators" to be consistent
with other PMIC drivers. Suggested by Mark Brown.
- Use regulators node names instead of the deprecated "regulator-compatible"
property. Suggested by Mark Brown.
- Use the new descriptor-based GPIO interface instead of the deprecated
---
drivers/mfd/Kconfig | 6 +-
drivers/mfd/max77686.c | 190 +++++++++++++++++++++++++++-----
include/linux/mfd/max77686-private.h | 208 ++++++++++++++++++++++++++++++++++-
include/linux/mfd/max77686.h | 60 +++++++++-
4 files changed, 430 insertions(+), 34 deletions(-)

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 3010204..de5abf2 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -380,15 +380,15 @@ config MFD_MAX14577
of the device.

config MFD_MAX77686
- bool "Maxim Semiconductor MAX77686 PMIC Support"
+ bool "Maxim Semiconductor MAX77686/802 PMIC Support"
depends on I2C=y
select MFD_CORE
select REGMAP_I2C
select REGMAP_IRQ
select IRQ_DOMAIN
help
- Say yes here to add support for Maxim Semiconductor MAX77686.
- This is a Power Management IC with RTC on chip.
+ Say yes here to add support for Maxim Semiconductor MAX77686 and
+ MAX77802 which are Power Management IC with an RTC on chip.
This driver provides common support for accessing the device;
additional drivers must be enabled in order to use the functionality
of the device.
diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index d193873..17d5cb3 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -1,5 +1,5 @@
/*
- * max77686.c - mfd core driver for the Maxim 77686
+ * max77686.c - mfd core driver for the Maxim 77686/802
*
* Copyright (C) 2012 Samsung Electronics
* Chiwoong Byun <woong.byun@xxxxxxxxxxx>
@@ -45,6 +45,74 @@ static const struct mfd_cell max77686_devs[] = {
{ .name = "max77686-clk", },
};

+static const struct mfd_cell max77802_devs[] = {
+ { .name = "max77802-pmic", },
+ { .name = "max77802-clk", },
+ { .name = "max77802-rtc", },
+};
+
+static bool max77802_pmic_is_accessible_reg(struct device *dev,
+ unsigned int reg)
+{
+ return (reg >= MAX77802_REG_DEVICE_ID && reg < MAX77802_REG_PMIC_END);
+}
+
+static bool max77802_rtc_is_accessible_reg(struct device *dev,
+ unsigned int reg)
+{
+ return (reg >= MAX77802_RTC_INT && reg < MAX77802_RTC_END);
+}
+
+static bool max77802_is_accessible_reg(struct device *dev, unsigned int reg)
+{
+ return (max77802_pmic_is_accessible_reg(dev, reg) ||
+ max77802_rtc_is_accessible_reg(dev, reg));
+}
+
+static bool max77802_pmic_is_precious_reg(struct device *dev, unsigned int reg)
+{
+ return (reg == MAX77802_REG_INTSRC || reg == MAX77802_REG_INT1 ||
+ reg == MAX77802_REG_INT2);
+}
+
+static bool max77802_rtc_is_precious_reg(struct device *dev, unsigned int reg)
+{
+ return (reg == MAX77802_RTC_INT ||
+ reg == MAX77802_RTC_UPDATE0 ||
+ reg == MAX77802_RTC_UPDATE1);
+}
+
+static bool max77802_is_precious_reg(struct device *dev, unsigned int reg)
+{
+ return (max77802_pmic_is_precious_reg(dev, reg) ||
+ max77802_rtc_is_precious_reg(dev, reg));
+}
+
+static bool max77802_pmic_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ return (max77802_is_precious_reg(dev, reg) ||
+ reg == MAX77802_REG_STATUS1 || reg == MAX77802_REG_STATUS2 ||
+ reg == MAX77802_REG_PWRON);
+}
+
+static bool max77802_rtc_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ return (max77802_rtc_is_precious_reg(dev, reg) ||
+ reg == MAX77802_RTC_SEC ||
+ reg == MAX77802_RTC_MIN ||
+ reg == MAX77802_RTC_HOUR ||
+ reg == MAX77802_RTC_WEEKDAY ||
+ reg == MAX77802_RTC_MONTH ||
+ reg == MAX77802_RTC_YEAR ||
+ reg == MAX77802_RTC_DATE);
+}
+
+static bool max77802_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ return (max77802_pmic_is_volatile_reg(dev, reg) ||
+ max77802_rtc_is_volatile_reg(dev, reg));
+}
+
static struct regmap_config max77686_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -55,6 +123,17 @@ static struct regmap_config max77686_rtc_regmap_config = {
.val_bits = 8,
};

+static struct regmap_config max77802_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .writeable_reg = max77802_is_accessible_reg,
+ .readable_reg = max77802_is_accessible_reg,
+ .precious_reg = max77802_is_precious_reg,
+ .volatile_reg = max77802_is_volatile_reg,
+ .name = "max77802-pmic",
+ .cache_type = REGCACHE_RBTREE,
+};
+
static const struct regmap_irq max77686_irqs[] = {
/* INT1 interrupts */
{ .reg_offset = 0, .mask = MAX77686_INT1_PWRONF_MSK, },
@@ -98,9 +177,34 @@ static const struct regmap_irq_chip max77686_rtc_irq_chip = {
.num_irqs = ARRAY_SIZE(max77686_rtc_irqs),
};

+static const struct regmap_irq_chip max77802_irq_chip = {
+ .name = "max77802-pmic",
+ .status_base = MAX77802_REG_INT1,
+ .mask_base = MAX77802_REG_INT1MSK,
+ .num_regs = 2,
+ .irqs = max77686_irqs, /* same masks as 77686 */
+ .num_irqs = ARRAY_SIZE(max77686_irqs),
+};
+
+static const struct regmap_irq_chip max77802_rtc_irq_chip = {
+ .name = "max77802-rtc",
+ .status_base = MAX77802_RTC_INT,
+ .mask_base = MAX77802_RTC_INTM,
+ .num_regs = 1,
+ .irqs = max77686_rtc_irqs, /* same masks as 77686 */
+ .num_irqs = ARRAY_SIZE(max77686_rtc_irqs),
+};
+
static const struct of_device_id max77686_pmic_dt_match[] = {
- {.compatible = "maxim,max77686", .data = NULL},
- {},
+ {
+ .compatible = "maxim,max77686",
+ .data = (void *)TYPE_MAX77686,
+ },
+ {
+ .compatible = "maxim,max77802",
+ .data = (void *)TYPE_MAX77802,
+ },
+ { },
};

static void max77686_dt_parse_dvs_gpio(struct device *dev)
@@ -240,6 +344,12 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
struct max77686_platform_data *pdata = dev_get_platdata(&i2c->dev);
unsigned int data;
int ret = 0;
+ const struct regmap_config *config;
+ const struct regmap_irq_chip *irq_chip;
+ const struct regmap_irq_chip *rtc_irq_chip;
+ struct regmap **rtc_regmap;
+ const struct mfd_cell *cells;
+ int n_devs;

if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node && !pdata)
pdata = max77686_i2c_parse_dt_pdata(&i2c->dev);
@@ -262,56 +372,77 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
max77686->wakeup = pdata->wakeup;
max77686->irq = i2c->irq;

- max77686->regmap = devm_regmap_init_i2c(i2c, &max77686_regmap_config);
+ if (max77686->type == TYPE_MAX77686) {
+ config = &max77686_regmap_config;
+ irq_chip = &max77686_irq_chip;
+ rtc_irq_chip = &max77686_rtc_irq_chip;
+ rtc_regmap = &max77686->rtc_regmap;
+ cells = max77686_devs;
+ n_devs = ARRAY_SIZE(max77686_devs);
+ } else {
+ config = &max77802_regmap_config;
+ irq_chip = &max77802_irq_chip;
+ rtc_irq_chip = &max77802_rtc_irq_chip;
+ rtc_regmap = &max77686->regmap;
+ cells = max77802_devs;
+ n_devs = ARRAY_SIZE(max77802_devs);
+ }
+
+ max77686->regmap = devm_regmap_init_i2c(i2c, config);
if (IS_ERR(max77686->regmap)) {
ret = PTR_ERR(max77686->regmap);
dev_err(max77686->dev, "Failed to allocate register map: %d\n",
- ret);
+ ret);
return ret;
}

ret = regmap_read(max77686->regmap, MAX77686_REG_DEVICE_ID, &data);
if (ret < 0) {
dev_err(max77686->dev,
- "device not found on this channel (this is not an error)\n");
- return -ENODEV;
- }
-
- max77686->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
- if (!max77686->rtc) {
- dev_err(max77686->dev, "Failed to allocate I2C device for RTC\n");
+ "device not found on this channel\n");
return -ENODEV;
}
- i2c_set_clientdata(max77686->rtc, max77686);

- max77686->rtc_regmap = devm_regmap_init_i2c(max77686->rtc,
- &max77686_rtc_regmap_config);
- if (IS_ERR(max77686->rtc_regmap)) {
- ret = PTR_ERR(max77686->rtc_regmap);
- dev_err(max77686->dev, "failed to allocate RTC regmap: %d\n",
- ret);
- goto err_unregister_i2c;
+ if (max77686->type == TYPE_MAX77686) {
+ max77686->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
+ if (!max77686->rtc) {
+ dev_err(max77686->dev,
+ "Failed to allocate I2C device for RTC\n");
+ return -ENODEV;
+ }
+ i2c_set_clientdata(max77686->rtc, max77686);
+
+ max77686->rtc_regmap =
+ devm_regmap_init_i2c(max77686->rtc,
+ &max77686_rtc_regmap_config);
+ if (IS_ERR(max77686->rtc_regmap)) {
+ ret = PTR_ERR(max77686->rtc_regmap);
+ dev_err(max77686->dev,
+ "failed to allocate RTC regmap: %d\n",
+ ret);
+ goto err_unregister_i2c;
+ }
}

ret = regmap_add_irq_chip(max77686->regmap, max77686->irq,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
- IRQF_SHARED, 0, &max77686_irq_chip,
+ IRQF_SHARED, 0, irq_chip,
&max77686->irq_data);
if (ret) {
dev_err(&i2c->dev, "failed to add PMIC irq chip: %d\n", ret);
goto err_unregister_i2c;
}
- ret = regmap_add_irq_chip(max77686->rtc_regmap, max77686->irq,
+
+ ret = regmap_add_irq_chip(*rtc_regmap, max77686->irq,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
- IRQF_SHARED, 0, &max77686_rtc_irq_chip,
+ IRQF_SHARED, 0, rtc_irq_chip,
&max77686->rtc_irq_data);
if (ret) {
dev_err(&i2c->dev, "failed to add RTC irq chip: %d\n", ret);
goto err_del_irqc;
}

- ret = mfd_add_devices(max77686->dev, -1, max77686_devs,
- ARRAY_SIZE(max77686_devs), NULL, 0, NULL);
+ ret = mfd_add_devices(max77686->dev, -1, cells, n_devs, NULL, 0, NULL);
if (ret < 0) {
dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
goto err_del_rtc_irqc;
@@ -324,7 +455,8 @@ err_del_rtc_irqc:
err_del_irqc:
regmap_del_irq_chip(max77686->irq, max77686->irq_data);
err_unregister_i2c:
- i2c_unregister_device(max77686->rtc);
+ if (max77686->type == TYPE_MAX77686)
+ i2c_unregister_device(max77686->rtc);

return ret;
}
@@ -338,13 +470,15 @@ static int max77686_i2c_remove(struct i2c_client *i2c)
regmap_del_irq_chip(max77686->irq, max77686->rtc_irq_data);
regmap_del_irq_chip(max77686->irq, max77686->irq_data);

- i2c_unregister_device(max77686->rtc);
+ if (max77686->type == TYPE_MAX77686)
+ i2c_unregister_device(max77686->rtc);

return 0;
}

static const struct i2c_device_id max77686_i2c_id[] = {
{ "max77686", TYPE_MAX77686 },
+ { "max77802", TYPE_MAX77802 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max77686_i2c_id);
@@ -413,6 +547,6 @@ static void __exit max77686_i2c_exit(void)
}
module_exit(max77686_i2c_exit);

-MODULE_DESCRIPTION("MAXIM 77686 multi-function core driver");
+MODULE_DESCRIPTION("MAXIM 77686/802 multi-function core driver");
MODULE_AUTHOR("Chiwoong Byun <woong.byun@xxxxxxxxxxx>");
MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/max77686-private.h b/include/linux/mfd/max77686-private.h
index 8e17780..0d60b38 100644
--- a/include/linux/mfd/max77686-private.h
+++ b/include/linux/mfd/max77686-private.h
@@ -1,5 +1,5 @@
/*
- * max77686-private.h - Voltage regulator driver for the Maxim 77686
+ * max77686-private.h - Voltage regulator driver for the Maxim 77686/802
*
* Copyright (C) 2012 Samsung Electrnoics
* Chiwoong Byun <woong.byun@xxxxxxxxxxx>
@@ -28,6 +28,7 @@

#define MAX77686_REG_INVALID (0xff)

+/* MAX77686 PMIC registers */
enum max77686_pmic_reg {
MAX77686_REG_DEVICE_ID = 0x00,
MAX77686_REG_INTSRC = 0x01,
@@ -181,6 +182,210 @@ enum max77686_rtc_reg {
MAX77686_ALARM2_DATE = 0x1B,
};

+/* MAX77802 PMIC registers */
+enum max77802_pmic_reg {
+ MAX77802_REG_DEVICE_ID = 0x00,
+ MAX77802_REG_INTSRC = 0x01,
+ MAX77802_REG_INT1 = 0x02,
+ MAX77802_REG_INT2 = 0x03,
+
+ MAX77802_REG_INT1MSK = 0x04,
+ MAX77802_REG_INT2MSK = 0x05,
+
+ MAX77802_REG_STATUS1 = 0x06,
+ MAX77802_REG_STATUS2 = 0x07,
+
+ MAX77802_REG_PWRON = 0x08,
+ /* Reserved: 0x09 */
+ MAX77802_REG_MRSTB = 0x0A,
+ MAX77802_REG_EPWRHOLD = 0x0B,
+ /* Reserved: 0x0C-0x0D */
+ MAX77802_REG_BOOSTCTRL = 0x0E,
+ MAX77802_REG_BOOSTOUT = 0x0F,
+
+ MAX77802_REG_BUCK1CTRL = 0x10,
+ MAX77802_REG_BUCK1DVS1 = 0x11,
+ MAX77802_REG_BUCK1DVS2 = 0x12,
+ MAX77802_REG_BUCK1DVS3 = 0x13,
+ MAX77802_REG_BUCK1DVS4 = 0x14,
+ MAX77802_REG_BUCK1DVS5 = 0x15,
+ MAX77802_REG_BUCK1DVS6 = 0x16,
+ MAX77802_REG_BUCK1DVS7 = 0x17,
+ MAX77802_REG_BUCK1DVS8 = 0x18,
+ /* Reserved: 0x19 */
+ MAX77802_REG_BUCK2CTRL1 = 0x1A,
+ MAX77802_REG_BUCK2CTRL2 = 0x1B,
+ MAX77802_REG_BUCK2PHTRAN = 0x1C,
+ MAX77802_REG_BUCK2DVS1 = 0x1D,
+ MAX77802_REG_BUCK2DVS2 = 0x1E,
+ MAX77802_REG_BUCK2DVS3 = 0x1F,
+ MAX77802_REG_BUCK2DVS4 = 0x20,
+ MAX77802_REG_BUCK2DVS5 = 0x21,
+ MAX77802_REG_BUCK2DVS6 = 0x22,
+ MAX77802_REG_BUCK2DVS7 = 0x23,
+ MAX77802_REG_BUCK2DVS8 = 0x24,
+ /* Reserved: 0x25-0x26 */
+ MAX77802_REG_BUCK3CTRL1 = 0x27,
+ MAX77802_REG_BUCK3DVS1 = 0x28,
+ MAX77802_REG_BUCK3DVS2 = 0x29,
+ MAX77802_REG_BUCK3DVS3 = 0x2A,
+ MAX77802_REG_BUCK3DVS4 = 0x2B,
+ MAX77802_REG_BUCK3DVS5 = 0x2C,
+ MAX77802_REG_BUCK3DVS6 = 0x2D,
+ MAX77802_REG_BUCK3DVS7 = 0x2E,
+ MAX77802_REG_BUCK3DVS8 = 0x2F,
+ /* Reserved: 0x30-0x36 */
+ MAX77802_REG_BUCK4CTRL1 = 0x37,
+ MAX77802_REG_BUCK4DVS1 = 0x38,
+ MAX77802_REG_BUCK4DVS2 = 0x39,
+ MAX77802_REG_BUCK4DVS3 = 0x3A,
+ MAX77802_REG_BUCK4DVS4 = 0x3B,
+ MAX77802_REG_BUCK4DVS5 = 0x3C,
+ MAX77802_REG_BUCK4DVS6 = 0x3D,
+ MAX77802_REG_BUCK4DVS7 = 0x3E,
+ MAX77802_REG_BUCK4DVS8 = 0x3F,
+ /* Reserved: 0x40 */
+ MAX77802_REG_BUCK5CTRL = 0x41,
+ MAX77802_REG_BUCK5OUT = 0x42,
+ /* Reserved: 0x43 */
+ MAX77802_REG_BUCK6CTRL = 0x44,
+ MAX77802_REG_BUCK6DVS1 = 0x45,
+ MAX77802_REG_BUCK6DVS2 = 0x46,
+ MAX77802_REG_BUCK6DVS3 = 0x47,
+ MAX77802_REG_BUCK6DVS4 = 0x48,
+ MAX77802_REG_BUCK6DVS5 = 0x49,
+ MAX77802_REG_BUCK6DVS6 = 0x4A,
+ MAX77802_REG_BUCK6DVS7 = 0x4B,
+ MAX77802_REG_BUCK6DVS8 = 0x4C,
+ /* Reserved: 0x4D */
+ MAX77802_REG_BUCK7CTRL = 0x4E,
+ MAX77802_REG_BUCK7OUT = 0x4F,
+ /* Reserved: 0x50 */
+ MAX77802_REG_BUCK8CTRL = 0x51,
+ MAX77802_REG_BUCK8OUT = 0x52,
+ /* Reserved: 0x53 */
+ MAX77802_REG_BUCK9CTRL = 0x54,
+ MAX77802_REG_BUCK9OUT = 0x55,
+ /* Reserved: 0x56 */
+ MAX77802_REG_BUCK10CTRL = 0x57,
+ MAX77802_REG_BUCK10OUT = 0x58,
+
+ /* Reserved: 0x59-0x5F */
+
+ MAX77802_REG_LDO1CTRL1 = 0x60,
+ MAX77802_REG_LDO2CTRL1 = 0x61,
+ MAX77802_REG_LDO3CTRL1 = 0x62,
+ MAX77802_REG_LDO4CTRL1 = 0x63,
+ MAX77802_REG_LDO5CTRL1 = 0x64,
+ MAX77802_REG_LDO6CTRL1 = 0x65,
+ MAX77802_REG_LDO7CTRL1 = 0x66,
+ MAX77802_REG_LDO8CTRL1 = 0x67,
+ MAX77802_REG_LDO9CTRL1 = 0x68,
+ MAX77802_REG_LDO10CTRL1 = 0x69,
+ MAX77802_REG_LDO11CTRL1 = 0x6A,
+ MAX77802_REG_LDO12CTRL1 = 0x6B,
+ MAX77802_REG_LDO13CTRL1 = 0x6C,
+ MAX77802_REG_LDO14CTRL1 = 0x6D,
+ MAX77802_REG_LDO15CTRL1 = 0x6E,
+ /* Reserved: 0x6F */
+ MAX77802_REG_LDO17CTRL1 = 0x70,
+ MAX77802_REG_LDO18CTRL1 = 0x71,
+ MAX77802_REG_LDO19CTRL1 = 0x72,
+ MAX77802_REG_LDO20CTRL1 = 0x73,
+ MAX77802_REG_LDO21CTRL1 = 0x74,
+ MAX77802_REG_LDO22CTRL1 = 0x75,
+ MAX77802_REG_LDO23CTRL1 = 0x76,
+ MAX77802_REG_LDO24CTRL1 = 0x77,
+ MAX77802_REG_LDO25CTRL1 = 0x78,
+ MAX77802_REG_LDO26CTRL1 = 0x79,
+ MAX77802_REG_LDO27CTRL1 = 0x7A,
+ MAX77802_REG_LDO28CTRL1 = 0x7B,
+ MAX77802_REG_LDO29CTRL1 = 0x7C,
+ MAX77802_REG_LDO30CTRL1 = 0x7D,
+ /* Reserved: 0x7E */
+ MAX77802_REG_LDO32CTRL1 = 0x7F,
+ MAX77802_REG_LDO33CTRL1 = 0x80,
+ MAX77802_REG_LDO34CTRL1 = 0x81,
+ MAX77802_REG_LDO35CTRL1 = 0x82,
+ /* Reserved: 0x83-0x8F */
+ MAX77802_REG_LDO1CTRL2 = 0x90,
+ MAX77802_REG_LDO2CTRL2 = 0x91,
+ MAX77802_REG_LDO3CTRL2 = 0x92,
+ MAX77802_REG_LDO4CTRL2 = 0x93,
+ MAX77802_REG_LDO5CTRL2 = 0x94,
+ MAX77802_REG_LDO6CTRL2 = 0x95,
+ MAX77802_REG_LDO7CTRL2 = 0x96,
+ MAX77802_REG_LDO8CTRL2 = 0x97,
+ MAX77802_REG_LDO9CTRL2 = 0x98,
+ MAX77802_REG_LDO10CTRL2 = 0x99,
+ MAX77802_REG_LDO11CTRL2 = 0x9A,
+ MAX77802_REG_LDO12CTRL2 = 0x9B,
+ MAX77802_REG_LDO13CTRL2 = 0x9C,
+ MAX77802_REG_LDO14CTRL2 = 0x9D,
+ MAX77802_REG_LDO15CTRL2 = 0x9E,
+ /* Reserved: 0x9F */
+ MAX77802_REG_LDO17CTRL2 = 0xA0,
+ MAX77802_REG_LDO18CTRL2 = 0xA1,
+ MAX77802_REG_LDO19CTRL2 = 0xA2,
+ MAX77802_REG_LDO20CTRL2 = 0xA3,
+ MAX77802_REG_LDO21CTRL2 = 0xA4,
+ MAX77802_REG_LDO22CTRL2 = 0xA5,
+ MAX77802_REG_LDO23CTRL2 = 0xA6,
+ MAX77802_REG_LDO24CTRL2 = 0xA7,
+ MAX77802_REG_LDO25CTRL2 = 0xA8,
+ MAX77802_REG_LDO26CTRL2 = 0xA9,
+ MAX77802_REG_LDO27CTRL2 = 0xAA,
+ MAX77802_REG_LDO28CTRL2 = 0xAB,
+ MAX77802_REG_LDO29CTRL2 = 0xAC,
+ MAX77802_REG_LDO30CTRL2 = 0xAD,
+ /* Reserved: 0xAE */
+ MAX77802_REG_LDO32CTRL2 = 0xAF,
+ MAX77802_REG_LDO33CTRL2 = 0xB0,
+ MAX77802_REG_LDO34CTRL2 = 0xB1,
+ MAX77802_REG_LDO35CTRL2 = 0xB2,
+ /* Reserved: 0xB3 */
+
+ MAX77802_REG_BBAT_CHG = 0xB4,
+ MAX77802_REG_32KHZ = 0xB5,
+
+ MAX77802_REG_PMIC_END = 0xB6,
+};
+
+enum max77802_rtc_reg {
+ MAX77802_RTC_INT = 0xC0,
+ MAX77802_RTC_INTM = 0xC1,
+ MAX77802_RTC_CONTROLM = 0xC2,
+ MAX77802_RTC_CONTROL = 0xC3,
+ MAX77802_RTC_UPDATE0 = 0xC4,
+ MAX77802_RTC_UPDATE1 = 0xC5,
+ MAX77802_WTSR_SMPL_CNTL = 0xC6,
+ MAX77802_RTC_SEC = 0xC7,
+ MAX77802_RTC_MIN = 0xC8,
+ MAX77802_RTC_HOUR = 0xC9,
+ MAX77802_RTC_WEEKDAY = 0xCA,
+ MAX77802_RTC_MONTH = 0xCB,
+ MAX77802_RTC_YEAR = 0xCC,
+ MAX77802_RTC_DATE = 0xCD,
+ MAX77802_RTC_AE1 = 0xCE,
+ MAX77802_ALARM1_SEC = 0xCF,
+ MAX77802_ALARM1_MIN = 0xD0,
+ MAX77802_ALARM1_HOUR = 0xD1,
+ MAX77802_ALARM1_WEEKDAY = 0xD2,
+ MAX77802_ALARM1_MONTH = 0xD3,
+ MAX77802_ALARM1_YEAR = 0xD4,
+ MAX77802_ALARM1_DATE = 0xD5,
+ MAX77802_RTC_AE2 = 0xD6,
+ MAX77802_ALARM2_SEC = 0xD7,
+ MAX77802_ALARM2_MIN = 0xD8,
+ MAX77802_ALARM2_HOUR = 0xD9,
+ MAX77802_ALARM2_WEEKDAY = 0xDA,
+ MAX77802_ALARM2_MONTH = 0xDB,
+ MAX77802_ALARM2_YEAR = 0xDC,
+ MAX77802_ALARM2_DATE = 0xDD,
+
+ MAX77802_RTC_END = 0xDF,
+};
+
enum max77686_irq_source {
PMIC_INT1 = 0,
PMIC_INT2,
@@ -250,6 +455,7 @@ struct max77686_dev {

enum max77686_types {
TYPE_MAX77686,
+ TYPE_MAX77802,
};

extern int max77686_irq_init(struct max77686_dev *max77686);
diff --git a/include/linux/mfd/max77686.h b/include/linux/mfd/max77686.h
index 46a736b..ff021b8 100644
--- a/include/linux/mfd/max77686.h
+++ b/include/linux/mfd/max77686.h
@@ -1,5 +1,5 @@
/*
- * max77686.h - Driver for the Maxim 77686
+ * max77686.h - Driver for the Maxim 77686/802
*
* Copyright (C) 2012 Samsung Electrnoics
* Chiwoong Byun <woong.byun@xxxxxxxxxxx>
@@ -71,6 +71,54 @@ enum max77686_regulators {
MAX77686_REG_MAX,
};

+/* MAX77802 regulator IDs */
+enum max77802_regulators {
+ MAX77802_BUCK1 = 0,
+ MAX77802_BUCK2,
+ MAX77802_BUCK3,
+ MAX77802_BUCK4,
+ MAX77802_BUCK5,
+ MAX77802_BUCK6,
+ MAX77802_BUCK7,
+ MAX77802_BUCK8,
+ MAX77802_BUCK9,
+ MAX77802_BUCK10,
+ MAX77802_LDO1,
+ MAX77802_LDO2,
+ MAX77802_LDO3,
+ MAX77802_LDO4,
+ MAX77802_LDO5,
+ MAX77802_LDO6,
+ MAX77802_LDO7,
+ MAX77802_LDO8,
+ MAX77802_LDO9,
+ MAX77802_LDO10,
+ MAX77802_LDO11,
+ MAX77802_LDO12,
+ MAX77802_LDO13,
+ MAX77802_LDO14,
+ MAX77802_LDO15,
+ MAX77802_LDO17,
+ MAX77802_LDO18,
+ MAX77802_LDO19,
+ MAX77802_LDO20,
+ MAX77802_LDO21,
+ MAX77802_LDO23,
+ MAX77802_LDO24,
+ MAX77802_LDO25,
+ MAX77802_LDO26,
+ MAX77802_LDO27,
+ MAX77802_LDO28,
+ MAX77802_LDO29,
+ MAX77802_LDO30,
+ MAX77802_LDO32,
+ MAX77802_LDO33,
+ MAX77802_LDO34,
+ MAX77802_LDO35,
+
+ MAX77802_REG_MAX,
+};
+
struct max77686_regulator_data {
int id;
struct regulator_init_data *initdata;
@@ -83,6 +131,13 @@ enum max77686_opmode {
MAX77686_OPMODE_STANDBY,
};

+enum max77802_opmode {
+ MAX77802_OPMODE_OFF,
+ MAX77802_OPMODE_STANDBY,
+ MAX77802_OPMODE_LP,
+ MAX77802_OPMODE_NORMAL,
+};
+
struct max77686_opmode_data {
int id;
int mode;
@@ -106,7 +161,8 @@ struct max77686_platform_data {
struct gpio_desc *buck_gpio_dvs[3]; /* GPIO of [0]DVS1, [1]DVS2, [2]DVS3 */
int buck_default_idx; /* Default value of DVS1, 2, 3 */

- struct gpio_desc *buck_gpio_selb[3]; /* Buck regulators 2, 3, 4 */
+ /* GPIO-SELBx - MAX77686: 2, 3, 4; MAX77802: 1, 2, 3, 4, 6 */
+ struct gpio_desc *buck_gpio_selb[5];
};

extern int max77686_setup_gpios(struct device *dev);
--
2.0.0.rc2

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