Samsung S2M/S5M series

modulename: rtc-s5m.ko

configname: CONFIG_RTC_DRV_S5M

Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>Samsung S2M/S5M series
In linux kernel since version 3.13 (release Date: 2014-01-19)  
If you say yes here you will get support for the
RTC of Samsung S2MPS14 and S5M PMIC series.

This driver can also be built as a module. If so, the module
will be called rtc-s5m.

source code:

depends
CONFIG_I2C
CONFIG_RTC_CLASS
CONFIG_COMPILE_TEST or CONFIG_MFD_SEC_CORE