[SRU][M/N][PATCH 0/1] Add support of MTL audio of Lenovo

Aaron Ma aaron.ma at canonical.com
Thu Jan 4 12:33:03 UTC 2024


BugLink: https://bugs.launchpad.net/bugs/2048078

[Impact]
On Lenovo ThinkPad MTL platform, the audio and mic are not working.
Error Logs:
[ 22.098899] sof-audio-pci-intel-mtl 0000:00:1f.3: no llp found, fall
back to default HDA path
[ 22.107925] sof-audio-pci-intel-mtl 0000:00:1f.3: no matching blob for
sample rate: 48000 sample width: 32 channels: 2
[ 22.107931] sof-audio-pci-intel-mtl 0000:00:1f.3: failed to prepare
widget dai-copier.DMIC.dmic01.capture
[ 22.107933] sof-audio-pci-intel-mtl 0000:00:1f.3: Failed to prepare
connected widgets
[ 22.107935] sof-audio-pci-intel-mtl 0000:00:1f.3: error: failed widget
list set up for pcm 6 dir 1
[ 22.107937] sof-audio-pci-intel-mtl 0000:00:1f.3: ASoC: error at
snd_soc_pcm_component_hw_params on 0000:00:1f.3: -22

[Fix]
Commit:
"ALSA: hda: intel-nhlt: Ignore vbps when looking for DMIC 32 bps format"
Add support of both 24 bit and 32 bit of DMIC hardware.

[Test]
Tested on hardware, sound ouput and DMIC input work fine.

[Where problems could occur]
It may break sound driver.

MTL is not supported by 5.15 and 6.2 kernel, SRU for oem-6.5, 6.5 and
6.6.

Peter Ujfalusi (1):
  ALSA: hda: intel-nhlt: Ignore vbps when looking for DMIC 32 bps format

 sound/hda/intel-nhlt.c | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

-- 
2.34.1




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