Public bug reported:

SRU Justification:

[Impact]
More Dell platforms (Slate 3-piece PTL + Yukon PTL + Slate Max PTL) with 
CirrusLogic audio solution CS42L45+CS35L63 will have no basic audio functions 
w/o corresponding firmware bianries.


<=============== linux-firmware ========================

[Fix]
Backport the patch firmware from CirrusLogic

bfebfc16a8b3  cirrus: cs35l63: Add firmware for Cirrus CS35L63 for various Dell 
laptops
21d670224ad1 cirrus: cs42l45: Add CS42L45 SDCA codec firmware for Dell laptops

[Test Case]
1. Boot up the machine of new Dell Slate 3-piece PTL + Yukon PTL + Slate Max 
PTL platform with CirrusLogic CS42L45+CS35L63
2. Open settings->Sound->Output Device and make sure it's not Dummy audio 
devices
3. Click test icon for basic audio output functions
4. Use `arecord` to record and play the recorded audio file with `aplay` for 
basic speaker/microphone functions.

[Where problems could occur]
It adds the support for new CirrusLogic CS42L45+CS35L63 with particular PCI 
SSIDs. No regression expected at the current stage.

** Affects: linux-firmware (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux-firmware (Ubuntu Noble)
     Importance: Undecided
         Status: New

** Affects: linux-firmware (Ubuntu Questing)
     Importance: Undecided
         Status: New

** Affects: linux-firmware (Ubuntu Resolute)
     Importance: Undecided
         Status: New

** Also affects: linux-firmware (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: linux (Ubuntu)

** Also affects: linux-firmware (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Also affects: linux-firmware (Ubuntu Questing)
   Importance: Undecided
       Status: New

** Also affects: linux-firmware (Ubuntu Resolute)
   Importance: Undecided
       Status: New

-- 
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2143813

Title:
  Enable CirrusLogic audio solution CS42L45+CS35L63 on more Dell
  platforms

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