2 files changed, 9 insertions, 1 deletions

diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index 900bc9e1888b..157e32b6ca28 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -126,7 +126,8 @@ struct sec_platform_data {
 struct sec_regulator_data {
         int                             id;
         struct regulator_init_data      *initdata;
-        struct device_node *reg_node;
+        struct device_node              *reg_node;
+        int                             ext_control_gpio;
 };
 
 /*
diff --git a/include/linux/mfd/samsung/s5m8767.h b/include/linux/mfd/samsung/s5m8767.h
index 2ab0b0f03641..243b58fec33d 100644
--- a/include/linux/mfd/samsung/s5m8767.h
+++ b/include/linux/mfd/samsung/s5m8767.h
@@ -183,10 +183,17 @@ enum s5m8767_regulators {
         S5M8767_REG_MAX,
 };
 
+/* LDO_EN/BUCK_EN field in registers */
 #define S5M8767_ENCTRL_SHIFT            6
 #define S5M8767_ENCTRL_MASK             (0x3 << S5M8767_ENCTRL_SHIFT)
 
 /*
+ * LDO_EN/BUCK_EN register value for controlling this Buck or LDO
+ * by GPIO (PWREN, BUCKEN).
+ */
+#define S5M8767_ENCTRL_USE_GPIO         0x1
+
+/*
  * Values for BUCK_RAMP field in DVS_RAMP register, matching raw values
  * in mV/us.
  */