Wolfson Microelectroncis WM8350 AudioPlus PMIC

modulename: wm8350-regulator.ko

configname: CONFIG_REGULATOR_WM8350

Linux Kernel Configuration
└─>Device Drivers
└─>Voltage and Current Regulator Support
└─>Wolfson Microelectroncis WM8350 AudioPlus PMIC
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
This driver provides support for the voltage and current regulators
of the WM8350 AudioPlus PMIC.

source code:
drivers/regulator/wm8350-regulator.c