Commit 56b4437f authored by Vinod Koul's avatar Vinod Koul Committed by Mark Brown
Browse files

ASoC: dapm: add a dapm sink widget 



DAPM models various widgets but lacks a sink widget.
DSPs can have modules which take audio data, process it and are
capable of generating events thus acting as a sink of data.

To make the dapm graph complete for such paths we need a dapm
sink widget for these modules, so add a SND_SOC_DAPM_SINK to
declare such a widget.  This widget will be treated as
SND_SOC_DAPM_EP_SINK endpoint in the dapm graph

Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Reviewed-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 8005c49d

include/sound/soc-dapm.h

+4 −0
Original line number Diff line number Diff line
@@ -49,6 +49,9 @@ struct device; 
#define SND_SOC_DAPM_SIGGEN(wname) \

{	.id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \

	.num_kcontrols = 0, .reg = SND_SOC_NOPM }

#define SND_SOC_DAPM_SINK(wname) \

{	.id = snd_soc_dapm_sink, .name = wname, .kcontrol_news = NULL, \

	.num_kcontrols = 0, .reg = SND_SOC_NOPM }

#define SND_SOC_DAPM_INPUT(wname) \

{	.id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \

	.num_kcontrols = 0, .reg = SND_SOC_NOPM }
@@ -484,6 +487,7 @@ enum snd_soc_dapm_type { 
	snd_soc_dapm_aif_in,		/* audio interface input */

	snd_soc_dapm_aif_out,		/* audio interface output */

	snd_soc_dapm_siggen,		/* signal generator */

	snd_soc_dapm_sink,

	snd_soc_dapm_dai_in,		/* link to DAI structure */

	snd_soc_dapm_dai_out,

	snd_soc_dapm_dai_link,		/* link between two DAI structures */

sound/soc/soc-dapm.c

+5 −0
Original line number Diff line number Diff line
@@ -3351,6 +3351,11 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, 
		w->is_ep = SND_SOC_DAPM_EP_SOURCE;

		w->power_check = dapm_always_on_check_power;

		break;

	case snd_soc_dapm_sink:

		w->is_ep = SND_SOC_DAPM_EP_SINK;

		w->power_check = dapm_always_on_check_power;

		break;



	case snd_soc_dapm_mux:

	case snd_soc_dapm_demux:

	case snd_soc_dapm_switch:

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