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# SPDX-License-Identifier: GPL-2.0-only
config SND_HDA_CODEC_HDMI
tristate "Generic HDMI/DisplayPort HD-audio codec support"
select SND_DYNAMIC_MINORS
select SND_PCM_ELD
help
Say Y or M here to include Generic HDMI and DisplayPort HD-audio
codec support.
Note that this option mandatorily enables CONFIG_SND_DYNAMIC_MINORS
to assure the multiple streams for DP-MST support.
config SND_HDA_CODEC_HDMI_SIMPLE
tristate "Simple HDMI/DisplayPort HD-audio codec support"
help
Say Y or M here to include Simple HDMI and DisplayPort HD-audio
codec support for VIA and other codecs.
config SND_HDA_CODEC_HDMI_INTEL
tristate "Intel HDMI/DisplayPort HD-audio codec support"
select SND_HDA_CODEC_HDMI
help
Say Y or M here to include Intel graphics HDMI and DisplayPort
HD-audio codec support.
config SND_HDA_INTEL_HDMI_SILENT_STREAM
bool "Enable Silent Stream always for HDMI"
depends on SND_HDA_CODEC_HDMI_INTEL
help
Say Y to enable HD-Audio Keep Alive (KAE) aka Silent Stream
for HDMI on hardware that supports the feature.
When enabled, the HDMI/DisplayPort codec will continue to provide
a continuous clock and a valid but silent data stream to
any connected external receiver. This allows to avoid gaps
at start of playback. Many receivers require multiple seconds
to start playing audio after the clock has been stopped.
This feature can impact power consumption as resources
are kept reserved both at transmitter and receiver.
config SND_HDA_CODEC_HDMI_ATI
tristate "AMD/ATI HDMI/DisplayPort HD-audio codec support"
select SND_HDA_CODEC_HDMI
help
Say Y or M here to include AMD/ATI graphics HDMI and DisplayPort
HD-audio codec support.
config SND_HDA_CODEC_HDMI_NVIDIA
tristate "Nvidia HDMI/DisplayPort HD-audio codec support"
select SND_HDA_CODEC_HDMI
help
Say Y or M here to include HDMI and DisplayPort HD-audio codec
support for the recent Nvidia graphics cards.
config SND_HDA_CODEC_HDMI_NVIDIA_MCP
tristate "Legacy Nvidia HDMI/DisplayPort HD-audio codec support"
select SND_HDA_CODEC_HDMI_SIMPLE
help
Say Y or M here to include HDMI and DisplayPort HD-audio codec
support for the legacy Nvidia graphics like MCP73, MCP67, MCP77/78.
config SND_HDA_CODEC_HDMI_TEGRA
tristate "Nvidia Tegra HDMI/DisplayPort HD-audio codec support"
select SND_HDA_CODEC_HDMI
help
Say Y or M here to include HDMI and DisplayPort HD-audio codec
support for Nvidia Tegra.
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