[Bug 2049569] [NEW] Enable the mic-mute led on Dell MTL laptops

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Anthony Wong (anthonywong):

[SRU Justifications]

========== kernels ==========

[Impact]
On Dell's Precision 3550, Intel MTL platform, the MIC-Mute function is working but the LED(on F4) state is not changed accordingly.

[Fix]
There's no problem on the same series on RPL platform. It needs MTL specific SoF driver and controls to support the registered mixer switch. It requires the patches in https://lore.kernel.org/all/20230919103115.30783-1-peter.ujfalusi@linux.intel.com/ and https://lore.kernel.org/all/20230814232325.86397-1-pierre-louis.bossart@linux.intel.com/

[Test Case]
1. press mic-mute hot-key and check if mic-mute is enabled or not by the OSD icon.
2. The mic-mute led should be ON when mic-mute enabled, OFF when disabled.

[Where problems could occur]
It's only required for new sof-audio-pci-intel-mtl driver. The impact should be restricting.

========== firmware-sof ==========

[Impact]
The mic-mute led not working on Intel MTL powered laptops.

[Fix]
For firmware-sof, it required the upstream commit fdc884baa4b3 ("Add sof-ipc4-v2.8.1/mtl/, intel-signed + community") and the sof-hda-generic-2ch.tplg from v2.8.1 to make sure the ipc4 topology and control matches with the updated driver.

[Test Case]
1. enable -proposed pocket and install firmware-sof-signed
2. press mic-mute hot-key and check if mic-mute is enabled or not by the OSD icon.

[Where problems could occur]
The updated sof-mtl.ri and the sof-hda-generic-2ch.tplg are shared by all Intel MTL platforms. Need to verify audio function on MTL enpowered machines.

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: firmware-sof (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: linux-oem-6.5 (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Affects: firmware-sof (Ubuntu Jammy)
     Importance: Undecided
         Status: Fix Committed

** Affects: linux (Ubuntu Jammy)
     Importance: Undecided
         Status: Invalid

** Affects: linux-oem-6.5 (Ubuntu Jammy)
     Importance: Undecided
         Status: Fix Released

** Affects: firmware-sof (Ubuntu Noble)
     Importance: Undecided
         Status: Fix Released

** Affects: linux (Ubuntu Noble)
     Importance: Undecided
         Status: Fix Released

** Affects: linux-oem-6.5 (Ubuntu Noble)
     Importance: Undecided
         Status: Invalid


** Tags: kernel-spammed-jammy-linux-oem-6.5-v2 oem-priority originate-from-2047635 patch somerville verification-done-jammy-linux-oem-6.5 verification-failed-jammy verification-needed
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Enable the mic-mute led on Dell MTL laptops
https://bugs.launchpad.net/bugs/2049569
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