SoC Audio for the Samsung S3C24XX chips

modulename: snd-soc-s3c24xx.ko

and/or

dev-audio.ko

configname: CONFIG_SND_S3C24XX_SOC

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC Audio for the Samsung S3C24XX chips
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Say Y or M if you want to add support for codecs attached to
the S3C24XX AC97, I2S or SSP interface. You will also need
to select the audio interfaces to support below.

source code:
sound/soc/s3c24xx/