[Feature Request]: Multichannel PCM HDMI mapping fix

[DeViLRuNNeR-dev]

Which feature would you like to have?

Hello Armbian Team,

On my RK3588 (NanoPI R6S) multichannel PCM HDMI audio channel mapping is broken.
See FORUM topic.

I have noticed that LibreELEC has several patches to improve HDMI audio.
Commit 2fcd517
for kernel 6.19.y and Commit d39e2d1
for kernel 6.18.y seem to describe the issue perfectly.

Tried their test builds LE13 test builds and can confirm HDMI multichannel audio is working correctly - These LE12.90.1 even have functional HDMI audio bitstream passthrough working.

Can these be included in future releases please?

Funding

• I am willing to cover expenses

[github-actions]

Hey @DeViLRuNNeR-dev! 👋

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[github-actions]

Jira ticket: AR-2821

[EvilOlaf]

feel free to send PRs

[DeViLRuNNeR-dev]

I don't see how I can do that (not familiar with this).
I can however confirm that multichannel HDMI audio mapping works correctly if patch is applied to [‎dw-hdmi-qp.c]