Build HDMI/DisplayPort HD-audio codec support

modulename: snd-hda-codec-hdmi.ko

configname: CONFIG_SND_HDA_CODEC_HDMI

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>PCI sound devices
└─>Intel HD Audio
└─>Build HDMI/DisplayPort HD-audio codec support
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
Say Y or M here to include HDMI and DisplayPort HD-audio codec
support in snd-hda-intel driver. This includes all AMD/ATI,
Intel and Nvidia HDMI/DisplayPort codecs.

source code:
sound/pci//hda//