regulator: max77693: Add max77693 regualtor driver.

This patch adds new regulator driver to support max77693 chip's regulators.
max77693 has two linear voltage regulators and one current regulator which
can be controlled through I2C bus. This driver also supports device tree.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

2 files changed, 31 insertions, 0 deletions

diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
index 1aa4f13cdfa6..244fb0d51589 100644
--- a/include/linux/mfd/max77693-private.h
+++ b/include/linux/mfd/max77693-private.h
@@ -85,6 +85,19 @@ enum max77693_pmic_reg {
         MAX77693_PMIC_REG_END,
 };
 
+/* MAX77693 CHG_CNFG_00 register */
+#define CHG_CNFG_00_CHG_MASK            0x1
+#define CHG_CNFG_00_BUCK_MASK           0x4
+
+/* MAX77693 CHG_CNFG_09 Register */
+#define CHG_CNFG_09_CHGIN_ILIM_MASK     0x7F
+
+/* MAX77693 CHG_CTRL Register */
+#define SAFEOUT_CTRL_SAFEOUT1_MASK      0x3
+#define SAFEOUT_CTRL_SAFEOUT2_MASK      0xC
+#define SAFEOUT_CTRL_ENSAFEOUT1_MASK    0x40
+#define SAFEOUT_CTRL_ENSAFEOUT2_MASK    0x80
+
 /* Slave addr = 0x4A: MUIC */
 enum max77693_muic_reg {
         MAX77693_MUIC_REG_ID            = 0x00,
diff --git a/include/linux/mfd/max77693.h b/include/linux/mfd/max77693.h
index 3109a6c5c948..676f0f388992 100644
--- a/include/linux/mfd/max77693.h
+++ b/include/linux/mfd/max77693.h
@@ -30,6 +30,20 @@
 #ifndef __LINUX_MFD_MAX77693_H
 #define __LINUX_MFD_MAX77693_H
 
+/* MAX77686 regulator IDs */
+enum max77693_regulators {
+        MAX77693_ESAFEOUT1 = 0,
+        MAX77693_ESAFEOUT2,
+        MAX77693_CHARGER,
+        MAX77693_REG_MAX,
+};
+
+struct max77693_regulator_data {
+        int id;
+        struct regulator_init_data *initdata;
+        struct device_node *of_node;
+};
+
 struct max77693_reg_data {
         u8 addr;
         u8 data;
@@ -52,6 +66,10 @@ struct max77693_muic_platform_data {
 struct max77693_platform_data {
         int wakeup;
 
+        /* regulator data */
+        struct max77693_regulator_data *regulators;
+        int num_regulators;
+
         /* muic data */
         struct max77693_muic_platform_data *muic_data;
 };