Unverified Commit de23a838 authored by Ranjani Sridharan's avatar Ranjani Sridharan Committed by Mark Brown
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ASoC: SOF: audio: Add helper to check if only D0i3 streams are active 



Add a helper function to check if only D0i3-compatible streams
are active.

Signed-off-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200129220726.31792-7-pierre-louis.bossart@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 61e285ca

sound/soc/sof/sof-audio.c

+33 −0
Original line number Diff line number Diff line
@@ -11,6 +11,39 @@ 
#include "sof-audio.h"

#include "ops.h"



/*

 * helper to determine if there are only D0i3 compatible

 * streams active

 */

bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev)

{

	struct snd_pcm_substream *substream;

	struct snd_sof_pcm *spcm;

	bool d0i3_compatible_active = false;

	int dir;



	list_for_each_entry(spcm, &sdev->pcm_list, list) {

		for (dir = 0; dir <= SNDRV_PCM_STREAM_CAPTURE; dir++) {

			substream = spcm->stream[dir].substream;

			if (!substream || !substream->runtime)

				continue;



			/*

			 * substream->runtime being not NULL indicates that

			 * that the stream is open. No need to check the

			 * stream state.

			 */

			if (!spcm->stream[dir].d0i3_compatible)

				return false;



			d0i3_compatible_active = true;

		}

	}



	return d0i3_compatible_active;

}

EXPORT_SYMBOL(snd_sof_dsp_only_d0i3_compatible_stream_active);



bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev)

{

	struct snd_sof_pcm *spcm;

sound/soc/sof/sof-audio.h

+1 −0
Original line number Diff line number Diff line
@@ -203,6 +203,7 @@ int snd_sof_ipc_set_get_comp_data(struct snd_sof_control *scontrol, 
int sof_restore_pipelines(struct device *dev);

int sof_set_hw_params_upon_resume(struct device *dev);

bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev);

bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev);



/* Machine driver enumeration */

int sof_machine_register(struct snd_sof_dev *sdev, void *pdata);