[Bug 2126737] Re: [SRU] alsa-ucm-conf: Missing audio support for MediaTek Genio EVK platforms

[Adam Hawes]

Superseding the previously attached resolute patch with this one which
applies over the newer 1.2.14 changes in Ubuntu.

** Patch added: "alsa-ucm-conf_resolute_LP2126737.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/2126737/+attachment/5931076/+files/alsa-ucm-conf_resolute_LP2126737.debdiff

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Title:
  [SRU] alsa-ucm-conf: Missing audio support for MediaTek Genio EVK
  platforms

Status in alsa-ucm-conf package in Ubuntu:
  In Progress
Status in alsa-ucm-conf source package in Noble:
  In Progress
Status in alsa-ucm-conf source package in Plucky:
  In Progress
Status in alsa-ucm-conf source package in Questing:
  In Progress
Status in alsa-ucm-conf source package in Resolute:
  In Progress

Bug description:
  [Impact]

  This update adds new ALSA UCM2 profiles to the alsa-ucm-conf package,
  specifically to enable audio on a range of MediaTek Genio EVK
  platforms based on the mt8365, mt8370, mt8390, and mt8395 SoCs.

  This is a crucial hardware enablement update necessary for out-of-the-
  box audio functionality on these specific development and reference
  boards. Without these profiles, audio playback, recording, and jack
  detection are non-functional.

  [Test Plan]

  This update requires testing on the specific MediaTek EVK hardware for
  which the profiles are intended (mt8365-evk, mt8370-evk, mt8390-evk,
  mt8395-evk).

  To verify the fix:

  1. On a target EVK, install the updated package.

  2. Confirm that audio devices (speakers, microphone, headset) are
  correctly detected in sound settings.

  3. Test audio playback and recording through all available devices.

  4. Verify that plugging in and unplugging a headset is correctly
  detected and that audio routes appropriately.

  [Where problems could occur]

  Regressions are unlikely but possible on other, existing platforms if
  the new configuration files cause parsing issues or introduce
  unexpected conflicts. This would most likely manifest as a loss of
  audio functionality (e.g., missing input/output devices) on previously
  working hardware.

  As a precaution, regression testing on a few non-MediaTek devices is
  recommended to ensure no existing functionality is broken.

  [Other Info]

  This update cherry-picks a series of 9 upstream commits that add the
  UCM2 profiles for the MediaTek EVK platforms.

  Upstream commits:

  * 0c4b859: https://github.com/alsa-project/alsa-ucm-conf/commit/0c4b859abcab
  * 03dd378: https://github.com/alsa-project/alsa-ucm-conf/commit/03dd37830b4b
  * 1b5de60: https://github.com/alsa-project/alsa-ucm-conf/commit/1b5de60bee2a
  * 35a3153: https://github.com/alsa-project/alsa-ucm-conf/commit/35a315312ffe
  * 3b81e60: https://github.com/alsa-project/alsa-ucm-conf/commit/3b81e602e222
  * ebdf9d1: https://github.com/alsa-project/alsa-ucm-conf/commit/ebdf9d1d8ffb
  * f293b31: https://github.com/alsa-project/alsa-ucm-conf/commit/f293b3149b8b
  * 63f161c: https://github.com/alsa-project/alsa-ucm-conf/commit/63f161cb8d65
  * c68ce7f: https://github.com/alsa-project/alsa-ucm-conf/commit/c68ce7f841d2

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