Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d6bead02 authored by Fabio Estevam's avatar Fabio Estevam Committed by Mark Brown
Browse files

ASoC: soc-pcm: Allow to specify unidirectional dai_link 



Add 'playback_only' and 'capture_only' fields that can be used for specifying
that a dai_link has a unidirectional capability.

The motivation for this is for the cases of systems, such as Freescale MX28,
that has two unidirectional DAIs.

Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 6b4c80f9

include/sound/soc.h

+4 −0
Original line number Diff line number Diff line
@@ -936,6 +936,10 @@ struct snd_soc_dai_link { 
	/* machine stream operations */

	const struct snd_soc_ops *ops;

	const struct snd_soc_compr_ops *compr_ops;



	/* For unidirectional dai links */

	bool playback_only;

	bool capture_only;

};



struct snd_soc_codec_conf {

sound/soc/soc-pcm.c

+10 −0
Original line number Diff line number Diff line
@@ -2027,6 +2027,16 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) 
			capture = 1;

	}



	if (rtd->dai_link->playback_only) {

		playback = 1;

		capture = 0;

	}



	if (rtd->dai_link->capture_only) {

		playback = 0;

		capture = 1;

	}



	/* create the PCM */

	if (rtd->dai_link->no_pcm) {

		snprintf(new_name, sizeof(new_name), "(%s)",