[SRU] [OEM-6.0] [PATCH 0/2] Fix cs35l41 regression

Kai-Heng Feng kai.heng.feng at canonical.com
Wed Nov 9 12:03:43 UTC 2022


BugLink: https://bugs.launchpad.net/bugs/1995957

[Impact]
cs35l41 speaker amplifier doesn't work on kernel 6.0.

[Fix]
1) Proper component matching
2) Revert a commit that is part of a series. We either backport the
whole series or revert it. Choose the latter approach.

[Test]
With the fix applied, the speaker and its amp work again.

[Where problems could occur]
The theoratical fix "ALSA: hda: Fix page fault in
snd_hda_codec_shutdown()" may have its merit, so we may need to backport
the whole series in the future.

Kai-Heng Feng (1):
  Revert "ALSA: hda: Fix page fault in snd_hda_codec_shutdown()"

Takashi Iwai (1):
  ALSA: hda/realtek: More robust component matching for CS35L41

 sound/pci/hda/hda_codec.c     | 41 ++++++++++++-----------
 sound/pci/hda/patch_realtek.c | 62 +++++++++++++++++++++--------------
 2 files changed, 58 insertions(+), 45 deletions(-)

-- 
2.34.1




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