SoC I2S Audio for the ADI Blackfin chip

modulename: snd-bf5xx-i2s.ko

configname: CONFIG_SND_BF5XX_I2S

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC I2S Audio for the ADI Blackfin chip
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
Say Y or M if you want to add support for codecs attached to
the Blackfin SPORT (synchronous serial ports) interface in I2S
mode (supports single stereo In/Out).
You will also need to select the audio interfaces to support below.

source code:
sound/soc//blackfin/