Abracon AB-RTCMC-32.768kHz-B5ZE-S3

modulename: rtc-ab-b5ze-s3.ko

configname: CONFIG_RTC_DRV_ABB5ZES3

Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>Abracon AB-RTCMC-32.768kHz-B5ZE-S3
In linux kernel since version 4 (release Date: 2015-04-12)  
If you say yes here you get support for the Abracon
AB-RTCMC-32.768kHz-B5ZE-S3 I2C RTC chip.

This driver can also be built as a module. If so, the module
will be called rtc-ab-b5ze-s3.

source code: