TI LP873X Power regulators

modulename: lp873x-regulator.ko

configname: CONFIG_REGULATOR_LP873X

Linux Kernel Configuration
└─>Device Drivers
└─>Voltage and Current Regulator Support
└─>Device Tree and Open Firmware support
└─>TI LP873X Power regulators
In linux kernel since version 4.1 (release Date: 2015-06-21)  
This driver supports LP873X voltage regulator chips. LP873X
provides two step-down converters and two general-purpose LDO
voltage regulators. It supports software based voltage control
for different voltage domains

source code: