power: pmic: add the max8997 controller for DM

Add the max8997 controller for Driver model.
Exynos4210 is using max8997 pmic controller.
(pmic_max8997.c should be deprecated.)

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index e7cc405..03fea07 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -61,6 +61,21 @@
 	This config enables implementation of driver-model pmic uclass features
 	for PMIC MAX8998. The driver implements read/write operations.
 
+config PMIC_MAX8997
+	bool "Enable Driver Model for PMIC MAX8997"
+	depends on DM_PMIC
+	---help---
+	This config enables implementation of driver-model pmic uclass features
+	for PMIC MAX8997. The driver implements read/write operations.
+	This is a Power Management IC with RTC, Fuel Gauge, MUIC control on Chip.
+	- 21x LDOs
+	- 12x GPIOs
+	- Haptic Motor driver
+	- RTC with two alarms
+	- Fueal Gauge and One backup battery charger
+	- MUIC
+	- Others
+
 config PMIC_PM8916
 	bool "Enable Driver Model for Qualcomm PM8916 PMIC"
 	depends on DM_PMIC