Wolfson Microelectronics WM831x/2x PMICs with I2C

modulename: wm831x-i2c.ko

configname: CONFIG_MFD_WM831X_I2C

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>I2C support
└─>Wolfson Microelectronics WM831x/2x PMICs with I2C
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
Support for the Wolfson Microelecronics WM831x and WM832x PMICs
when controlled using I2C. This driver provides common support
for accessing the device, additional drivers must be enabled in
order to use the functionality of the device.

source code:

depends
CONFIG_GENERIC_HARDIRQS
CONFIG_HAS_IOMEM
CONFIG_I2C