rtc: palmas: Add RTC driver Palmas series PMIC

TI Palmas series PMIC support the RTC and alarm functionality.
Add RTC driver with alarm support for this device.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 923a9da..f11f746 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -269,6 +269,16 @@
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-x1205.
 
+config RTC_DRV_PALMAS
+	tristate "TI Palmas RTC driver"
+	depends on MFD_PALMAS
+	help
+	  If you say yes here you get support for the RTC of TI PALMA series PMIC
+	  chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-palma.
+
 config RTC_DRV_PCF8523
 	tristate "NXP PCF8523"
 	help