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

[Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>]

Hi Pierre-Louis

Thank you for your feedback

> I mentioned in my previous feedback that this isn't quite right. There
> are cases where the CPU dai reports capabilities that the codec DAI does
> not support - e.g. when the AEC reference is generated in firmware on
> the host DSP.

Hmm... I thought all issue was solved...

> For those systems, trying to match CPU and codec dais is not going to
> work. Either we skip this verification or we have an escape mechanism to
> avoid triggering errors.

Sorry, but I'm not 100% understand about your situation.
Why Codec can't have channels_min ?
If the Codec can flexibly adjust to paired CPU, Codec can have full channels
support, like dummy DAI ? This means verification is based on CPU only.
Is it not enough ?  and/or Can you show me the driver ?

	static struct snd_soc_dai_driver dummy_dai = {
		...
		.playback = {
=>			.channels_min	= 1,
=>			.channels_max	= 384,
			...
		},
		.capture = {
			...
=>			.channels_min	= 1,
=>			.channels_max	= 384,
			...
		 },
		...
	};

Thank you for your help !!

Best regards
---
Renesas Electronics
Ph.D. Kuninori Morimoto