SoC Audio support for i.MX boards with sgtl5000

modulename: snd-soc-imx-sgtl5000.ko

configname: CONFIG_SND_SOC_IMX_SGTL5000

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC Audio for Freescale CPUs
└─>SoC Audio support for i.MX boards with sgtl5000
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Say Y if you want to add support for SoC audio on an i.MX board with
a sgtl5000 codec.

source code:
sound/soc//fsl/