[SRU][D/OEM-OSP1-B/E][PATCH 0/3] alsa/hdmi: add icelake hdmi audio support for a Dell machine

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/1836916

This patch is needed to be merged to oem-osp1-b kernel ASAP, since
our oem project is waiting for this patch.

And Since this patch is to support icl hdmi audio and it depends on
i915 to support icl first, and our bionic and oem-b kernel doesn't
support icl in their i915 driver, so these patchset doesn't work for
B/OEM-B, as a result, I don't send them for B/OEM-B.

And the 0001-xxx.patch is already in the kernel-v5.1, so EAON kernel
doesn't need to apply 0001-xxx.patch, only need to apply 0002 and 0003
to EAON kernel.

[Impact]
On a Dell icelake platform, the hdmi audio doesn't work at all, when users
plug hdmi cable, they can't find hdmi audio from gnome-sound-setting.

[Fix]
add icl hdmi audio id and related support patch to alsa driver.

[Test Case]
after applying the patchset, we plug hdmi cable and the hdmi audio shows up
in the sound-setting and works well, after unplugging the cable, the hdmi
audio disappears as expected.

[Regression Risk]
Low. this patchset is specific to a icl hdmi audio codec.



Jaroslav Kysela (1):
  ALSA: hda: hdmi - add Icelake support

Takashi Iwai (2):
  ALSA: hda/hdmi - Remove duplicated define
  ALSA: hda/hdmi - Fix i915 reverse port/pin mapping

 sound/pci/hda/patch_hdmi.c | 90 +++++++++++++++++++++++++++++---------
 1 file changed, 69 insertions(+), 21 deletions(-)

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2.17.1