[Bug 2085067] Re: Add support of micmute LED on AMD acppdmmach

[AaronMa]

$ sudo apt policy alsa-ucm-conf
alsa-ucm-conf:
  Installed: 1.2.10-1ubuntu5.2

Press F4, the OSD of "Digital microphone" shows mic is muted and led of F4 key is on.
Press F4 again, it shows mic volume, and the led of F4 key is off.

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https://bugs.launchpad.net/bugs/2085067

Title:
  Add support of micmute LED on AMD acppdmmach

Status in HWE Next:
  In Progress
Status in alsa-ucm-conf package in Ubuntu:
  Fix Released
Status in alsa-ucm-conf source package in Jammy:
  Fix Committed
Status in alsa-ucm-conf source package in Noble:
  Fix Committed
Status in alsa-ucm-conf source package in Oracular:
  Fix Committed

Bug description:
  [Impact]
  Mic-mute LED is not working after press (Mic-mute/F4) key on Thinkpad AMD with sound driver acppdmmach

  [Fix]
  Add support of AMD AI pro CPUs, DMIC and Micmute LED work fine.

  [Test]
  Press key F4, the osd shows "Micphone Muted", the LED on key F4 is light on.
  Press again, the osd shows "mic volume" and micphone on icon, the LED on key F4 is off.
  The mic mute LED works fine.

  [Where problems could occur]
  Low, upstream fix.
  It may break mic-mute LED.

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