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.marti...@collabora.co.uk>
---

    NOTE: I didn't carry previous {Review,Acked,Tested}-by tags since
    this patch extending MAX77686 is quite different than the old one
    adding a new mfd driver. So review and test is highly appreciated.

    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               | 187 ++++++++++++++++++++++++++-----
 include/linux/mfd/max77686-private.h | 208 ++++++++++++++++++++++++++++++++++-
 include/linux/mfd/max77686.h         |  60 +++++++++-
 4 files changed, 428 insertions(+), 33 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 648d564..c0db750 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.b...@smasung.com>
@@ -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 than 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 than 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)
@@ -236,6 +340,12 @@ 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);
@@ -258,56 +368,77 @@ 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;
@@ -320,7 +451,8 @@ 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;
 }
@@ -341,6 +473,7 @@ static int max77686_i2c_remove(struct i2c_client *i2c)
 
 static const struct i2c_device_id max77686_i2c_id[] = {
        { "max77686", TYPE_MAX77686 },
+       { "max77802", TYPE_MAX77802 },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, max77686_i2c_id);
@@ -409,6 +542,6 @@ 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.b...@samsung.com>");
 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.b...@samsung.com>
@@ -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.b...@samsung.com>
@@ -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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