[alsa-devel] [PATCH 1/2] ASoC: DPCM: make some DPCM API calls non static for compressed usage

[Vinod Koul]

On Thu, Jan 16, 2014 at 04:55:34PM +0100, Takashi Iwai wrote:
> At Thu, 16 Jan 2014 20:10:42 +0530,
> Vinod Koul wrote:
> > 
> > On Thu, Jan 16, 2014 at 12:31:53PM +0000, Mark Brown wrote:
> > > On Wed, Jan 15, 2014 at 04:51:56PM +0000, Liam Girdwood wrote:
> > > > The ASoC compressed code needs to call the internal DPCM APIs in order to
> > > > dynamically route compressed data to different DAIs.
> > > 
> > > Applied, thanks.  I'm holding off on the second patch for a little so
> > > Vinod has a chance to say something since it's compressed stuff.
> > Both look good to me, so
> > 
> > Acked-by: Vinod Koul <vinod.koul at intel.com>
> > 
> > The second patch still needs an update for properly copying the hw_params. This
> > was one of issue reported by qcom folks, but I don't want to hold these now. We
> > can fix that as it will impact systems not have fixup function for BEs.
> 
> One thing that makes me a bit nervous is that it's accessing the
> actual PCM object.  So far, sound/pcm.h is included there just because
> it's re-using the same enum definitions, etc, but it doesn't mean that
> it allows accessing a PCM object or function.
> 
> If we bind a real PCM instance there, we should add the Kconfig
> selection for SND_PCM from SND_COMPRESS_OFFLOAD.

Makes sense, but is this a practical sceanrios. I dont think we have a sound
card which supports offload only so SND_PCM will always be selected.

This is also ASoC patch, so SND_SOC would be selected, which selects SND_PCM

--
~Vinod