Re: [PATCH 2/6] soundwire: stream: update state machine and add state checks

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On 11-01-20, 05:30, Pierre-Louis Bossart wrote:
> 
> 
> On 1/10/20 10:30 AM, Pierre-Louis Bossart wrote:
> > 
> > > > -  int sdw_prepare_stream(struct sdw_stream_runtime * stream);
> > > > +  int sdw_prepare_stream(struct sdw_stream_runtime * stream,
> > > > bool resume);
> > > 
> > > so what does the additional argument of resume do..?
> > > 
> > > > diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
> > > > index 178ae92b8cc1..6aa0b5d370c0 100644
> > > > --- a/drivers/soundwire/stream.c
> > > > +++ b/drivers/soundwire/stream.c
> > > > @@ -1553,8 +1553,18 @@ int sdw_prepare_stream(struct
> > > > sdw_stream_runtime *stream)
> > > 
> > > and it is not modified here, so is the doc correct or this..?
> > 
> > the doc is correct and the code is updated in
> > 
> > [PATCH 4/6] soundwire: stream: do not update parameters during
> > DISABLED-PREPARED transition
> 
> Sorry, wrong answer, my bad. The code block in the documentation is
> incorrect.
> 
> The Patch 4/6 implements the transition mentioned in the documentation, but
> the extra parameter is a left-over from an earlier version. This case is now
> handled internally. We did revert to the initial prototype after finding out
> that dealing with transitions in the caller is error-prone.

Glad that you agree with me on something!

-- 
~Vinod
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