CONFIG_SND_SST_ATOM_HIFI2_PLATFORM (not configurable)

modulename: snd-soc-sst-atom-hifi2-platform.ko

and/or

snd-intel-sst-core.ko

configname: CONFIG_SND_SST_ATOM_HIFI2_PLATFORM

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SND_SST_ATOM_HIFI2_PLATFORM
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
sound/soc//intel/atom/