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

Mark Brown broonie at kernel.org
Thu Dec 12 11:43:47 CET 2013

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?
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