EM Microelectronic EM3027

modulename: rtc-em3027.ko

configname: CONFIG_RTC_DRV_EM3027

Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>EM Microelectronic EM3027
In linux kernel since version 3 (release Date: 2011-07-21)  
If you say yes here you get support for the EM
Microelectronic EM3027 RTC chips.

This driver can also be built as a module. If so, the module
will be called rtc-em3027.

source code:
drivers/rtc/rtc-em3027.c