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| author | Ranjani Sridharan <ranjani.sridharan@linux.intel.com> | 2020-01-29 16:07:23 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-02-11 11:48:05 +0000 |
| commit | de23a838d8d61767c6232f229f019eb46401cb93 (patch) | |
| tree | 3104b23de80a1edd24455c8f6524842fdaf0d28c | |
| parent | 61e285caf40fef18e8bd7cea5237ee6723609a1c (diff) | |
| download | lwn-de23a838d8d61767c6232f229f019eb46401cb93.tar.gz lwn-de23a838d8d61767c6232f229f019eb46401cb93.zip | |
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: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-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: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/sof/sof-audio.c | 33 | ||||
| -rw-r--r-- | sound/soc/sof/sof-audio.h | 1 |
2 files changed, 34 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c index d16571ca129c..75f2ef2bd94b 100644 --- a/sound/soc/sof/sof-audio.c +++ b/sound/soc/sof/sof-audio.c @@ -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; diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h index a2702afbd9a1..eacd10e4da11 100644 --- a/sound/soc/sof/sof-audio.h +++ b/sound/soc/sof/sof-audio.h @@ -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); |