[alsa-devel] [PATCH 1/9] ASoC: SOF: Do not reset hw_params for streams that ignored suspend - Pierre-Louis Bossart

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: alsa-devel@alsa-project.org
Cc: tiwai@suse.de, broonie@kernel.org,
	Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Subject: [alsa-devel] [PATCH 1/9] ASoC: SOF: Do not reset hw_params for streams that ignored suspend
Date: Wed, 29 Jan 2020 16:07:18 -0600	[thread overview]
Message-ID: <20200129220726.31792-2-pierre-louis.bossart@linux.intel.com> (raw)
In-Reply-To: <20200129220726.31792-1-pierre-louis.bossart@linux.intel.com>

From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>

Setting the prepared flag to false marks the streams for the
hw_params to be reset upon resuming. In the case of
the D0i3-compatible streams that ignored suspend to
keep the pipeline active in the DSP during suspend,
this should not be done.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/sof/sof-audio.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
index 0d8f65b9ae25..345e42ee4783 100644
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -39,6 +39,13 @@ int sof_set_hw_params_upon_resume(struct device *dev)
 	 */
 	list_for_each_entry(spcm, &sdev->pcm_list, list) {
 		for (dir = 0; dir <= SNDRV_PCM_STREAM_CAPTURE; dir++) {
+			/*
+			 * do not reset hw_params upon resume for streams that
+			 * were kept running during suspend
+			 */
+			if (spcm->stream[dir].suspend_ignored)
+				continue;
+
 			substream = spcm->stream[dir].substream;
 			if (!substream || !substream->runtime)
 				continue;
-- 
2.20.1

_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
