linux-kernel - [PATCH AUTOSEL 6.1 03/53] ASoC: SOF: pm: Always tear down pipelines before DSP suspend

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Message-Id: <20230116140154.114951-3-sashal@kernel.org>
Date:   Mon, 16 Jan 2023 09:01:03 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Curtis Malainey <cujomalainey@...omium.org>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>, lgirdwood@...il.com,
        daniel.baluta@....com, perex@...ex.cz, tiwai@...e.com,
        sound-open-firmware@...a-project.org, alsa-devel@...a-project.org
Subject: [PATCH AUTOSEL 6.1 03/53] ASoC: SOF: pm: Always tear down pipelines before DSP suspend

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

[ Upstream commit d185e0689abc98ef55fb7a7d75aa0c48a0ed5838 ]

When the DSP is suspended while the firmware is in the crashed state, we
skip tearing down the pipelines. This means that the widget reference
counts will not get to reset to 0 before suspend. This will lead to
errors with resuming audio after system resume. To fix this, invoke the
tear_down_all_pipelines op before skipping to DSP suspend.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Reviewed-by: Curtis Malainey <cujomalainey@...omium.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>
Link: https://lore.kernel.org/r/20221220125629.8469-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/sof/pm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c
index 5f88c4a01fa3..8722bbd7fd3d 100644
--- a/sound/soc/sof/pm.c
+++ b/sound/soc/sof/pm.c
@@ -192,6 +192,9 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
 	if (runtime_suspend && !sof_ops(sdev)->runtime_suspend)
 		return 0;
 
+	if (tplg_ops && tplg_ops->tear_down_all_pipelines)
+		tplg_ops->tear_down_all_pipelines(sdev, false);
+
 	if (sdev->fw_state != SOF_FW_BOOT_COMPLETE)
 		goto suspend;
 
@@ -216,9 +219,6 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
 		goto suspend;
 	}
 
-	if (tplg_ops->tear_down_all_pipelines)
-		tplg_ops->tear_down_all_pipelines(sdev, false);
-
 	/* suspend DMA trace */
 	sof_fw_trace_suspend(sdev, pm_state);
 
-- 
2.35.1