Audio on the the i.MX31ADS with WM1133-EV1 fitted

modulename: snd-soc-wm1133-ev1.ko

configname: CONFIG_SND_MXC_SOC_WM1133_EV1

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>Audio on the the i.MX31ADS with WM1133-EV1 fitted
In linux kernel since version 2.6.35 (release Date: 2010-08-01)  
Enable support for audio on the i.MX31ADS with the WM1133-EV1
PMIC board with WM8835x fitted.

source code:
sound/soc//imx/