ams AS3722 Power Management IC

modulename: as3722.ko

configname: CONFIG_MFD_AS3722

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>I2C support
└─>ams AS3722 Power Management IC
In linux kernel since version 3.13 (release Date: 2014-01-19)  
The ams AS3722 is a compact system PMU suitable for mobile phones,
tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down
controllers, 11 LDOs, RTC, automatic battery, temperature and
over current monitoring, GPIOs, ADC and a watchdog.

source code: