power: regulator: max77663: add regulator support

The driver provides regulator set/get voltage
enable/disable functions for MAXIM MAX77663 PMICs.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
index eb5aa38..5818162 100644
--- a/drivers/power/regulator/Kconfig
+++ b/drivers/power/regulator/Kconfig
@@ -141,6 +141,15 @@
 	  This config enables implementation of driver-model regulator uclass
 	  features for PWM regulators in SPL.
 
+config DM_REGULATOR_MAX77663
+	bool "Enable Driver Model for REGULATOR MAX77663"
+	depends on DM_REGULATOR && DM_PMIC_MAX77663
+	---help---
+	This config enables implementation of driver-model regulator uclass
+	features for REGULATOR MAX77663. The driver supports both DC-to-DC
+	Step-Down (SD) Regulators and Low-Dropout Linear (LDO) Regulators
+	found in MAX77663 PMIC and implements get/set api for value and enable.
+
 config DM_REGULATOR_MAX77686
 	bool "Enable Driver Model for REGULATOR MAX77686"
 	depends on DM_REGULATOR && DM_PMIC_MAX77686