[alsa-devel] [PATCH] ASoC: soc-pcm: Use delay set in pointer function

[Mark Brown]

On Tue, Jul 31, 2018 at 03:29:35PM +0200, Takashi Iwai wrote:
> Mark Brown wrote:

> > > > However since it's not supposed to be providing any DMA a CPU DAI really
> > > > shouldn't be doing this...

> > > Well, if so, the CPU dai also cannot get the exact base delay
> > > corresponding to the reported position, either, no?

> > It can know how much delay it's adding internally between its input and
> > output, which feeds into the overall delay experienced by the user.

> But isn't it merely the additional delay that should be applied on top
> of the existing runtime->delay?

Yes.  I'm saying that if the CPU DAI thinks it can figure out the base
delay something is confused.
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