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mb/google/fatcat/var/kinmen: Disable RT721 clock stop support

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This change applies the same fix as coreboot change CB:89605 to the
kinmen variant. Without this change, headset jack detection won't work.

The original change 752d49a4ff was:
  "mb/google/fatcat/var/moonstone: Disable RT721 clock stop support"

RT721 headset jack detection fails because the wakeup event is not
triggered during runtime suspend in D3 state. Disable the clock stop
to allow the bus driver to handle the wakeup process properly. The MIPI
Disco property is "mipi-sdw-simplified-clockstopprepare-sm-supported".

BUG=b:435094908
TEST=After plugging a headset, audio output is switched to it.
Change-Id: I468d949e1249548348493c070b4955c012ef7b4e
Signed-off-by: Norman Bintang <normanbt@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89784
Reviewed-by: Pranava Y N <pranavayn@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This commit is contained in:
Norman Bintang 2025-10-28 18:34:14 +08:00 • committed by Matt DeVillier
commit 32ec29a51e
1 changed files with 1 additions and 0 deletions
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1
src/mainboard/google/fatcat/variants/kinmen/overridetree.cb
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@ -481,6 +481,7 @@ chip soc/intel/pantherlake
register "alc711_address.version" = "SOUNDWIRE_VERSION_1_2"
register "alc711_address.class" = "MIPI_CLASS_SDCA"
register "alc711_address.part_id" = "MIPI_DEV_ID_REALTEK_ALC721"
register "disable_clkstop_sm_support" = "true"
# SoundWire Link 3 ID 1
device generic 3.1 on
probe AUDIO AUDIO_ALC721_SNDW