[SRU] [F/Unstable/OEM-5.6] [PATCH 0/1] Fix missing HDMI Audio on an HP Desktop

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1890441

[Impact]
There's an HP desktop doesn't claim to support HDMI audio.

[Fix]
Use a quirk list to force HDMI audio connection to ignore Connectivity
Bit, which is incorrectly set by BIOS.

[Test]
With the patch applied, we can find HDMI codec under /proc/asound/card0
and audio playback through HDMI works. 

[Regression Potential]
This fix doesn't bring any functional change other than the targeted
platform. The platform in question is not on the market yet so the
risk of regression is minimal.

Kai-Heng Feng (1):
  ALSA: hda/hdmi: Add quirk to force connectivity

 sound/pci/hda/patch_hdmi.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

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2.17.1