This bug is awaiting verification that the linux/5.13.0-24.24 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-impish' to 'verification-done-impish'. If the
problem still exists, change the tag 'verification-needed-impish' to
'verification-failed-impish'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

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** Tags added: verification-needed-impish

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Packages, which is subscribed to linux-oem-5.14 in Ubuntu.
https://bugs.launchpad.net/bugs/1955686

Title:
  alsa/sdw: fix the  audio sdw codec parsing logic in the acpi table

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux-oem-5.14 package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  Won't Fix
Status in linux-oem-5.14 source package in Focal:
  In Progress
Status in linux source package in Impish:
  Fix Committed
Status in linux-oem-5.14 source package in Impish:
  Invalid
Status in linux source package in Jammy:
  In Progress
Status in linux-oem-5.14 source package in Jammy:
  Invalid

Bug description:
  [Impact]
  we have a couple of Dell ADL laptops which have sdw audio, after upgrading
  the BIOS to 0.1.4 or above, the sdw audio can't work anymore, the driver
  can't parse the codec layout from ACPI table anymore.

  
  [Fix]
  Backport two patches from upstream.

  [Test]
  Boot the patched kernel on those machines both with old bios and
  new bios, all work well, the sdw audio could initialize and the
  audio function work well.

  [Where problems could occur]
  If it could introduce regression, it will be on the acpi sdw codec
  parsing, so some sdw audio machines could fail to find the codec, then
  the whole audio function fails. But this possibility is very low, we
  already tested the patches on both old bios and new bios.

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