From a77e5d573f847d2f984c38eb711351326bc55258 Mon Sep 17 00:00:00 2001
From: Keyon Jie <yang.jie@linux.intel.com>
Date: Mon, 11 Nov 2019 16:33:42 -0600
Subject: [PATCH] ASoC: SOF: add helper to check if we should enter d0i3 suspend
Git-commit: a77e5d573f847d2f984c38eb711351326bc55258
Patch-mainline: v5.5-rc1
References: jsc#SLE-16518
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/sof/core.c | 13 +++++++++++++
sound/soc/sof/sof-priv.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 8661c2cca76b..805918d3bcc0 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -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.
*/
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
index 6408ac88a3e5..c7c2c70ee4d0 100644
--- a/sound/soc/sof/sof-priv.h
+++ b/sound/soc/sof/sof-priv.h
@@ -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,
--
2.16.4