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mb/google/fatcat/var/fatcat: Disable ALC721 & ALC722 clock stop support

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There is an issue with headset detection on Soundwire audio codec.
Specifically, if the audio is not active (playback/capture is not
ongoing), then 3.5 mm headset detection fails. There is a fix for
Francka (PTL design). Similar implementation is needed for Fatcat.

Port commit a23be7a6fe (mb/google/fatcat/var/francka: Disable ALC721 &
ALC722 clock stop support to francka. This allows the flag to be
overridden via devicetree, instead of relying on the default value in
alc711_slave. It helps fix the missing event issue when plugging or
unplugging the 3.5mm headphone jack.)

BUG=NONE
TEST=After boot to OS, verified headphone detection working using
"getevent" command. Seeing headset jack detected in output:

add device 3: /dev/input/event7
  name:     "sof-soundwire Headset Jack"

Change-Id: I717f31f8d492bd0b2523c77b7492e46f50de991e
Signed-off-by: Zhixing Ma <zhixing.ma@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88986
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:
Zhixing Ma 2025-08-28 14:38:41 -07:00 • committed by Jérémy Compostella
commit d5a92542aa
1 changed files with 2 additions and 0 deletions
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2
src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
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@ -936,6 +936,7 @@ 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_ALC722"
register "disable_clkstop_sm_support" = "true"
# SoundWire Link 1 ID 1
device generic 1.1 on
probe AUDIO AUDIO_ALC722_SNDW
@ -946,6 +947,7 @@ 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