CONFIG_SND_SOC_CS4270 (not configurable)

modulename: snd-soc-cs4270.ko

configname: CONFIG_SND_SOC_CS4270

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SND_SOC_CS4270
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
source code:
sound/soc//codecs/