ACPI HiFi2 (Baytrail, Cherrytrail) Platforms

modulename: snd-soc-sst-atom-hifi2-platform.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
└─>ACPI HiFi2 (Baytrail, Cherrytrail) Platforms
In linux kernel since version 3.10 (release Date: 2013-06-30)  
If you have a Intel Baytrail or Cherrytrail platform with an I2S
codec, then enable this option by saying Y or m. This is a
recommended option

source code:
sound/soc//intel/atom/