SoC PCM DAI support for AT91 SSC controller using PDC

configname: CONFIG_SND_ATMEL_SOC_SSC_PDC

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC PCM DAI support for AT91 SSC controller using PDC
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y or M if you want to add support for Atmel SSC interface
in PDC mode configured using audio-graph-card in device-tree.