Unverified Commit 7a117225 authored by Ranjani Sridharan's avatar Ranjani Sridharan Committed by Mark Brown
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ASoC: SOF: Intel: hda: handle only paused streams in hda_dai_suspend()

hda_dai_suspend() was added to handle paused stream during system
suspend. But as a side effect, it also ends up cleaning up the DMA
data for those streams that were prepared but not triggered before a
system suspend. Since these streams will not receive the prepare
callback after resuming, we need to preserve the DMA data during suspend.
So, add the check to handle only those streams that are in the paused
state to avoid losing the DMA data for all other streams.

Link: https://github.com/thesofproject/linux/issues/5080


Signed-off-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: default avatarFred Oh <fred.oh@linux.intel.com>
Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarPéter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20241107134957.25160-1-peter.ujfalusi@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 1862e847
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Original line number Diff line number Diff line
@@ -617,6 +617,10 @@ static int hda_dai_suspend(struct hdac_bus *bus)
			sdai = swidget->private;
			ops = sdai->platform_private;

			if (rtd->dpcm[hext_stream->link_substream->stream].state !=
			    SND_SOC_DPCM_STATE_PAUSED)
				continue;

			/* for consistency with TRIGGER_SUSPEND  */
			if (ops->post_trigger) {
				ret = ops->post_trigger(sdev, cpu_dai,