SoC Audio for Freescale MXS CPUs

modulename: snd-soc-mxs.ko

configname: CONFIG_SND_MXS_SOC

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC Audio for Freescale MXS CPUs
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Say Y or M if you want to add support for codecs attached to
the MXS SAIF interface.

source code:
sound/soc//mxs/