[SRU][Focal][PATCH 0/3] Audio fails to initialize on icl machines

Hui Wang hui.wang at canonical.com
Tue Jul 14 07:34:17 UTC 2020

BugLink: https://bugs.launchpad.net/bugs/1886341

These patches are already in the Groovy kernel and oem-5.6 kernel, so
only focal kernel needs these patchees.

On the machine of Lenovo IdeaPad 5 15IIL05, the audio doesn't work,
checking the dmesg, I found the audio driver fails to initialize
because it fails on i915 audio codec probe.

backport 3 patches from mainline kernel, move the i915 audio codec
init earlier.

[Test Case]
Boot the kernel with these 3 patches, check dmesg, there is no
i915 audio codec probe error anymore, and audio driver initializes
successfully, and input and output audio devices all work.

[Regression Risk]
Low, already tested these 3 patches on a couple of LENOVO dmic
machines (cnl and cml machines), all work as well as before.

Kai Vehmanen (2):
  ASoC: SOF: Intel: drop HDA codec upon probe failure
  ASoC: SOF: Intel: hda: move i915 init earlier

Ranjani Sridharan (1):
  ASoC: SOF: intel: hda: Modify signature for hda_codec_probe_bus()

 sound/soc/sof/intel/hda-codec.c | 24 +++++++++---------------
 sound/soc/sof/intel/hda.c       | 15 +++++++--------
 sound/soc/sof/intel/hda.h       |  3 ++-
 3 files changed, 18 insertions(+), 24 deletions(-)


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