ASoC support for Rockchip boards using a RT5645/RT5650 codec

modulename: snd-soc-rockchip-rt5645.ko

configname: CONFIG_SND_SOC_ROCKCHIP_RT5645

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>Rockchip
└─>GPIO Support
└─>ASoC support for Rockchip boards using a RT5645/RT5650 codec
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y or M here if you want to add support for SoC audio on Rockchip
boards using the RT5645/RT5650 codec, such as Veyron.

source code:
sound/soc//rockchip/