Allow detecting ACP6x DMIC via _DSD

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Merge series from Mario Limonciello <mario.limonciello@amd.com>:

It's not possible to probe for the presence of a DMIC, so the ACP6x
machine driver currently has a hardcoded list of all the systems known
to have a DMIC connected to the ACP.

Although this design works it means that the acp6x driver needs to always
grow with more systems and worse, if an OEM introduces a new system there
will be a mismatch in time that even if the driver (otherwise) works fine
it needs their system added to the list to work.

So this series introduces a _DSD that OEMs can populate into the BIOS to
indicate presence of a DMIC.

...

This commit is contained in:

Mark Brown 2022-04-12 17:16:51 +01:00

parent 31c90dd56a 5426f506b5

commit 2f7f0994cc

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1 changed files with 38 additions and 4 deletions

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sound/soc/amd/yc/acp6x-mach.c

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