rtc: mediatek: Add MT6397 RTC driver

Add Mediatek MT6397 RTC driver

Signed-off-by: Tianping Fang <[email protected]>
Signed-off-by: Eddie Huang <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>

Author: Tianping Fang

drivers/rtc/Kconfig

@@ -1530,6 +1530,16 @@ config RTC_DRV_MOXART
 	   This driver can also be built as a module. If so, the module
 	   will be called rtc-moxart
 
+config RTC_DRV_MT6397
+	tristate "Mediatek Real Time Clock driver"
+	depends on MFD_MT6397 || COMPILE_TEST
+	help
+	  This selects the Mediatek(R) RTC driver. RTC is part of Mediatek
+	  MT6397 PMIC. You should enable MT6397 PMIC MFD before select
+	  Mediatek(R) RTC driver.
+
+	  If you want to use Mediatek(R) RTC interface, select Y or M here.
+
 config RTC_DRV_XGENE
 	tristate "APM X-Gene RTC"
 	depends on HAS_IOMEM

drivers/rtc/Makefile

@@ -155,3 +155,4 @@ obj-$(CONFIG_RTC_DRV_X1205)	+= rtc-x1205.o
 obj-$(CONFIG_RTC_DRV_XGENE)	+= rtc-xgene.o
 obj-$(CONFIG_RTC_DRV_SIRFSOC)	+= rtc-sirfsoc.o
 obj-$(CONFIG_RTC_DRV_MOXART)	+= rtc-moxart.o
+obj-$(CONFIG_RTC_DRV_MT6397)	+= rtc-mt6397.o