Re: ASoC dailink capture/playback flags

On Tue, May 19, 2020 at 09:25:31PM -0500, Pierre-Louis Bossart wrote:

So here are the questions:

• when using DPCM, is there an expectation to use dpcm_ flags only?

• should we instead use playback/capture_only when only one of the two dpcm_

flags is set?

• should we flags errors if we ever encounter cases with e.g. dpcm_playback

= true and capture_only = true?

TBH I'm not convinced DPCM is well enough tied together to have clear answers on this. I don't really know what those DPCM level flags are doing.

• do we actually need two sets of definitions? There are very few users of

the .playback_only and .capture_only flags and only a single place where it's checked in soc-pcm.c

We could probably do a driver only thing for the i.MX stuff if we had to.