[SRU][Hirsute][PATCH 0/2] alsa: the soundwire audio doesn't work on the Dell TGL-H machines

Hui Wang hui.wang at canonical.com
Thu Aug 26 05:09:58 UTC 2021

BugLink: https://bugs.launchpad.net/bugs/1941669

These 2 patches were merged to upstream kernel from v5.12, no need to
send them to impish/oem-5.13/unstable kernels. And this patch is
already in the oem-5.10 kernel, for focal kernel, since focal kernel
doesn't support soundwire audio, these 2 patches are useless for focal

The Dell precision 5760 is a TGL-H machine, and it has soundwire audio
design, when running the hirsute kernel, the audio driver fails to
load sof-firmware, then the whole audio fails to initialize and fails
to work.

Backport 2 patches, these will remove hardcoded firmware name and
allow load firmware according to the firmware name defined by pciid

Booting the patched kernel, check dmesg, there is no errors about
loading audio sof-firmware, playsound to spk and headphone, all worked
well, record sound from internal mic and external mic, all worked well.

[Where problems could occur]
The patch remove the hardcoded firmware for all TGL soundwire machines,
this could make the TGL soundwire machines fail to load the
sof-firmware then the whole audio fail to work. But this possibiliy is
low, since we tested the patches on different TGL soundwire machines,
all worked well.

Libin Yang (2):
  ASoC: SOF: allow soundwire use desc->default_fw_filename
  ASoC: Intel: tgl: remove sof_fw_filename set for tgl_3_in_1_default

 sound/soc/intel/common/soc-acpi-intel-tgl-match.c | 7 -------
 sound/soc/sof/intel/hda.c                         | 5 ++++-
 2 files changed, 4 insertions(+), 8 deletions(-)


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