[SRU][OEM-5.14/OEM-5.17][PATCH 0/2] alsa: asoc: amd: the internal mic can't be dedected on yellow carp machines

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/1980700

The fix is already in the upstream kernel v5.19-rc1, no need to
send the patches to unstable kernel. And our Jammy kernel (5.15.0) has
not merged the patchset of #1949245, this SRU is not applied to jammy
kernel too.

[Impact]
On the AMD YC platforms, the internal mic can't be detected
and there is no internal mic for users to use.

[Fix]
Backport 2 patches from mainline kernel to fix this problem.

[Test]
boot the patched kernel on the machine which has updated BIOS, after
loging into the desktop, open the gnome-sound-setting, there is
internal mic, and could record sound via internal mic.


[Where problems could occur]
This only impacts intenal mic detection on AMD yc machines, it will
check the acpi variable first, if not detected, it will check the acpi
dmi table as before, so the regression possibility is very low, and we
already tested these patches on a couple of Lenovo YC machines, all
worked well.


Mario Limonciello (2):
  ASoC: amd: Add driver data to acp6x machine driver
  ASoC: amd: Add support for enabling DMIC on acp6x via _DSD

 sound/soc/amd/yc/acp6x-mach.c | 42 +++++++++++++++++++++++++++++++----
 1 file changed, 38 insertions(+), 4 deletions(-)

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2.25.1