[alsa-devel] [PATCH 3/4] pxa-ssp: don't touch ssp registers when stream is running

Daniel Mack daniel at caiaq.de
Thu Mar 5 11:23:37 CET 2009

On Wed, Mar 04, 2009 at 08:42:22PM +0000, Mark Brown wrote:
> On Wed, Mar 04, 2009 at 09:39:11PM +0100, Daniel Mack wrote:
> > On Wed, Mar 04, 2009 at 08:33:52PM +0000, Mark Brown wrote:
> > > I'd expect an error to be reported here - if we needed to change the
> > > settings and can't things could go wrong.  Ideally it'd check to see if
> > > the DAI format was being changed and only error if it was.
> > In my tests, pxa_ssp_set_dai_fmt() was simply called twice, once for the
> > input, once for the ouput. Hence I believed a silent exit in such a case
> That'll be because you weren't changing the DAI format - hence my
> comment about only erroring if the format is changed.

Ok, that makes sense. We should probably do something silimar in
set_hw_params() were we also currently exit silently in case of running

I'll post a new set soon when we sorted out more things on the other


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