There's an upstream commit (part of 5.12) that Vincent referenced that nicely illustrates the difference between what I want to achieve with this bug report and a possible solution applied in that commit (IIUC): https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=25572fb5aa986bdbb35d06c0fb52a9b9d9b3b2c9 In that commit there's a switch from 'audio-graph-card' to 'simple-audio-card'. If that change were applied to Debian, that should make the audio work (too) on a Rock64. And if upstream would backport that commit to 5.10, Debian would only have to upgrade to a latter 5.10 version to get it. But there's a line in that commit message that illustrates what I want to achieve with this bug report: "For newly adding nodes, ASoC guys recommend to use audio-graph-card." What I get from that and is what I assumed previously, is that 'audio-graph-card' is seen as 'basic building block' for audio in SBCs. (Just like 'simple-audio-card' is). And that is why I want it enabled in the Debian kernel(s). Just a 'backport' of above referenced commit would fix my issue on my Rock64s, but afaic it wouldn't fix this bug. Cheers, Diederik
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