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: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -49,6 +49,9 @@ struct device;
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#define SND_SOC_DAPM_SIGGEN(wname) \
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{ .id = snd_soc_dapm_siggen, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM }
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#define SND_SOC_DAPM_SINK(wname) \
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{ .id = snd_soc_dapm_sink, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM }
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#define SND_SOC_DAPM_INPUT(wname) \
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{ .id = snd_soc_dapm_input, .name = wname, .kcontrol_news = NULL, \
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.num_kcontrols = 0, .reg = SND_SOC_NOPM }
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@ -484,6 +487,7 @@ enum snd_soc_dapm_type {
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snd_soc_dapm_aif_in, /* audio interface input */
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snd_soc_dapm_aif_out, /* audio interface output */
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snd_soc_dapm_siggen, /* signal generator */
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snd_soc_dapm_sink,
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snd_soc_dapm_dai_in, /* link to DAI structure */
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snd_soc_dapm_dai_out,
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snd_soc_dapm_dai_link, /* link between two DAI structures */
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@ -3351,6 +3351,11 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
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w->is_ep = SND_SOC_DAPM_EP_SOURCE;
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w->power_check = dapm_always_on_check_power;
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break;
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case snd_soc_dapm_sink:
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w->is_ep = SND_SOC_DAPM_EP_SINK;
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w->power_check = dapm_always_on_check_power;
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break;
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case snd_soc_dapm_mux:
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case snd_soc_dapm_demux:
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case snd_soc_dapm_switch:
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