ASoC: SOF: Intel: hda: Do not re-enable L1 if disabled before suspend

We have a workaround in place to address a known issue with host DMA
running into xruns when capture streams are running. But when resuming
from Sx, we unconditionally re-enable DMI L1 without taking the
workaround into account and this could lead to xruns when a suspended
capture stream is restarted.

To fix this rename the flag l1_support_enabled to l1_disabled in struct
sof_intel_hda_dev to save the L1 disabled status which can be
set/cleared when we get/put a stream and use the flag to determine if DMI
L1 should enabled or not during the post_fw_run op.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230220075804.4829-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index 45f9d4248f14..0679bebe4ad7 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -502,7 +502,7 @@ struct sof_intel_hda_dev {
 	u32 stream_max;
 
 	/* PM related */
-	bool l1_support_changed;/* during suspend, is L1SEN changed or not */
+	bool l1_disabled;/* is DMI link L1 disabled? */
 
 	/* DMIC device */
 	struct platform_device *dmic_dev;