Re: [PATCH v3 2/3] ASoC: soc-pcm: Indicate warning if CPU / Codec availability mismatch

[Mark Brown <broonie@xxxxxxxxxx>]

On Tue, May 21, 2024 at 08:43:09AM -0500, Pierre-Louis Bossart wrote:

> allow me to give you another counter example, beyond the AEC reference I
> mentioned earlier. It's not uncommon for CPU DAIs to have loopback
> capabilities, which are used for tests on boards where the codec has no
> capture capabilities. I think it's a feature that needs to be allowed,
> not a 'wrong setting'.

This is something we could do properly if we had full digital routing
rather than bolting things on the side of the CPU<->CODEC model - having
these things where we have to take a CODEC into account even though
we're not actually using it is one of the big issues with DPCM.

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