Maxim MAX77686

modulename: rtc-max77686.ko

configname: CONFIG_RTC_DRV_MAX77686

Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>Maxim MAX77686
In linux kernel since version 3.1 (release Date: 2011-10-24)  
If you say yes here you will get support for the
RTC of Maxim MAX77686/MAX77620/MAX77802 PMIC.

This driver can also be built as a module. If so, the module
will be called rtc-max77686.

source code:
depends
CONFIG_I2C
CONFIG_RTC_CLASS
CONFIG_COMPILE_TEST or CONFIG_MFD_MAX77620 or CONFIG_MFD_MAX77686