CS42L43 and CS35L56 for soundwire on Intel LNL/ARL

[You-Sheng Yang]

[SRU Justification]

[Impact]

Missing firmware for CS42L43 and CS35L56 for soundwire on Intel LNL/ARL.

[Fix]

linux-firmware upstream commit 57077702373e ("linux-firmware: Add firmware for Cirrus CS35L56 for Dell laptops").

[Test Case]

With successful loads, there should be dmesg txt showing the loaded firmware, such as:

  cs35l56 sdw:0:2:01fa:3556:01:2: DSP1: cirrus/cs35l56-b0-dsp1-misc-10280c6b-spkid1-amp3.bin: v3.11.11
  cs35l56 sdw:0:3:01fa:3556:01:0: DSP1: cirrus/cs35l56-b0-dsp1-misc-10280c6b-spkid1-amp1.bin: v3.11.11
  ...

[Where problems could occur]

New hardware. No known problem yet.

[Other Info]

While this has been included in upstream tag 20240410, it's automatically included in linux-firmware/oracular version Ubuntu-20240730.git65c5d9b1-0ubuntu1, and therefore only Noble is nominated for SRU.

[You-Sheng Yang (vicamo)]

linux-firmware: https://kernel.ubuntu.com/gitea/kernel/linux-firmware/pulls/35

[Chris Chiu (mschiu77)]

Verified on the Pista MTL in lp:2055375. The firmware can be loaded correctly w/o problem

[You-Sheng Yang (vicamo)]

Has been included in linux-firmware/oracular since version 20240730.git65c5d9b1-0ubuntu1.

[Timo Aaltonen (tjaalton)]

Hello You-Sheng, or anyone else affected,

Accepted linux-firmware into noble-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/linux-firmware/20240318.git3b128b60-0ubuntu2.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-noble to verification-done-noble. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-noble. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[You-Sheng Yang (vicamo)]

Verified linux-firmware/noble-proposed version 20240318.git3b128b60-0ubuntu2.2.