[alsa-devel] [PATCH v3 2/3] ASoC: soc-dapm: API to attach DAPM_SUPPLY to be used for dai

Mark Brown broonie at opensource.wolfsonmicro.com
Tue Sep 6 17:09:07 CEST 2011

On Tue, Sep 06, 2011 at 01:21:56PM +0300, Péter Ujfalusi wrote:
> On Saturday 03 September 2011 07:31:19 Mark Brown wrote:

> > Actually I think this is fine with my suggestion so long as you make the
> > CODEC SYSCLK visible to DAPM and have the machine driver turn it off at
> > some later point in the shutdown process (eg, in shutdown()).  That way
> > the data paths will still be torn down by DAPM immediately but SYSCLK
> > will still be generated.
> I need to think about this.
> Not sure how it will affect our system, if we do not have pmdown_time in the 
> future, when we add full ABE support.

pmdown_time is irrelevant here, it only inserts a delay in the sequence
so if it's not there the delay just goes to zero and the sequence of
events is the same but quicker.

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