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Commit 85a57fb9 authored May 29, 2019 by Sudheer Papothi

ASoC: dapm: Avoid static route b/w cpu and codec dai



Currently ASoC core creates a static route b/w
playback/capture widgets of cpu and codec dai
if they are part of the same dai-link. However
this will cause codec path to get powered up
followed by the backend dai start during device
switch use-case where the front-end is not closed,
leading to audio playback failure if either bit-width
or sample rate is different.

Change-Id: Icd17677a73fdc4bd30e0918fcaa7e7f394245685
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>

parent 580b80dd

include/sound/soc.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -992,6 +992,9 @@ struct snd_soc_dai_link {
		/* This DAI link can route to other DAI links at runtime (Frontend)*/
		unsigned int dynamic:1;

		/* This DAI link can be reconfigured at runtime (Backend) */
		unsigned int dynamic_be:1;

		/*
		* This DAI can support no host IO (no pcm data is
		* copied to from host)

sound/soc/soc-dapm.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -4232,7 +4232,8 @@ void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
		* dynamic FE links have no fixed DAI mapping.
		* CODEC<->CODEC links have no direct connection.
		*/
		if (rtd->dai_link->dynamic \|\| rtd->dai_link->params)
		if (rtd->dai_link->dynamic \|\| rtd->dai_link->params \|\|
		rtd->dai_link->dynamic_be)
		continue;

		dapm_connect_dai_link_widgets(card, rtd);