DB1200/DB1300/DB1550 Audio support

modulename: snd-soc-db1200.ko

configname: CONFIG_SND_SOC_DB1200

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>DB1200/DB1300/DB1550 Audio support
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
Select this option to enable audio (AC97 and I2S) on the
Alchemy/AMD/RMI/NetLogic Db1200, Db1550 and Db1300 evaluation boards.
If you need Db1300 touchscreen support, you definitely want to say Y.

source code:
sound/soc//au1x/