[alsa-devel] [PATCH] ASOC:DAPM: extend dapm kcontrol to support runtime route update

Vinod Koul vinod.koul at intel.com
Sun Dec 15 14:51:16 CET 2013

On Thu, Dec 12, 2013 at 10:43:47AM +0000, Mark Brown wrote:
> On Thu, Dec 12, 2013 at 04:06:59PM +0800, Nenghua Cao wrote:
> > From: nhcao <nhcao at marvell.com>
> > 
> >     DPCM can dynamically alter the FE to BE PCM links at runtime based
> > on mixer setting updates. DAPM has provided common get/put function for
> > mixer/mux. But these function doesn't call soc_dpcm_runtime_update()
> > func to update pcm links. This patch defines a DPCM DPCM kcontrol. For
> > this control, the common get/put function will update FE to BE links
> > dynamically. This patch has no impact to the current code.
> Why shouldn't we just add the DPCM update to the standard controls -
> what's the benefit in defining a new set of controls?
Precisely my thoughts too, I think that would be a better approach!

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