HD-audio HDMI codec support

configname: CONFIG_SND_HDA_CODEC_HDMI

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>HD-Audio
└─>HD-audio HDMI codec support
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
Say Y or M here to include HD-audio HDMI/DislayPort codec support.

This will enable all HDMI/DP codec drivers as default, but you can
enable/disable each codec driver individually, too (only when
CONFIG_EXPERT is set).