ASoC: SOF: add helper to check if we should enter d0i3 suspend (a77e5d57) · Commits · 戴 / test

Add helper to check if the DSP should be put in D0i3. This function returns true if a stream has ignored the SUSPEND trigger to keep the pipelines running in the DSP. Signed-off-by:

Keyon Jie <yang.jie@linux.intel.com> Signed-off-by:

Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191111223343.19986-4-pierre-louis.bossart@linux.intel.com Signed-off-by:

Mark Brown <broonie@kernel.org>

sound/soc/sof/core.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -132,6 +132,19 @@ struct snd_sof_dai snd_sof_find_dai(struct snd_sof_dev sdev,
		return NULL;
		}

		bool snd_sof_dsp_d0i3_on_suspend(struct snd_sof_dev *sdev)
		{
		struct snd_sof_pcm *spcm;

		list_for_each_entry(spcm, &sdev->pcm_list, list) {
		if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].suspend_ignored \|\|
		spcm->stream[SNDRV_PCM_STREAM_CAPTURE].suspend_ignored)
		return true;
		}

		return false;
		}

		/*
		* FW Panic/fault handling.
		*/

sound/soc/sof/sof-priv.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -553,6 +553,8 @@ struct snd_sof_pcm snd_sof_find_spcm_dai(struct snd_sof_dev sdev,
		return NULL;
		}

		bool snd_sof_dsp_d0i3_on_suspend(struct snd_sof_dev *sdev);

		struct snd_sof_pcm snd_sof_find_spcm_name(struct snd_sof_dev sdev,
		const char *name);
		struct snd_sof_pcm snd_sof_find_spcm_comp(struct snd_sof_dev sdev,

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