This is a note to let you know that I've just added the patch titled
ASoC: rt715-sdca-sdw: use first_hw_init flag on resume
to the 5.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-rt715-sdca-sdw-use-first_hw_init-flag-on-resume.patch
and it can be found in the queue-5.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 163750e0ba6492c6676b566a467b340ef94a42de
Author: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Date: Mon Jun 7 17:22:33 2021 -0500
ASoC: rt715-sdca-sdw: use first_hw_init flag on resume
[ Upstream commit d34d0897a753f42c8a7a6af3866781dd57344a45 ]
The intent of the status check on resume was to verify if a SoundWire
peripheral reported ATTACHED before waiting for the initialization to
complete. This is required to avoid timeouts that will happen with
'ghost' devices that are exposed in the platform firmware but are not
populated in hardware.
Unfortunately we used 'hw_init' instead of 'first_hw_init'. Due to
another error, the resume operation never timed out, but the volume
settings were not properly restored.
This patch renames the status flag to 'first_hw_init' for consistency
with other drivers (was 'first_init')
BugLink: https://github.com/thesofproject/linux/issues/2908
BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 20d17057f0a8c ('ASoC: rt715-sdca: Add RT715 sdca vendor-specific driver')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx>
Reviewed-by: Bard Liao <bard.liao@xxxxxxxxx>
Link: https://lore.kernel.org/r/20210607222239.582139-10-pierre-louis.bossart@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/codecs/rt715-sdca-sdw.c b/sound/soc/codecs/rt715-sdca-sdw.c
index 1350798406f0..7646bbe739f1 100644
--- a/sound/soc/codecs/rt715-sdca-sdw.c
+++ b/sound/soc/codecs/rt715-sdca-sdw.c
@@ -224,7 +224,7 @@ static int __maybe_unused rt715_dev_resume(struct device *dev)
struct rt715_sdca_priv *rt715 = dev_get_drvdata(dev);
unsigned long time;
- if (!rt715->hw_init)
+ if (!rt715->first_hw_init)
return 0;
if (!slave->unattach_request)
diff --git a/sound/soc/codecs/rt715-sdca.c b/sound/soc/codecs/rt715-sdca.c
index 7db76c19e048..d82166f1a378 100644
--- a/sound/soc/codecs/rt715-sdca.c
+++ b/sound/soc/codecs/rt715-sdca.c
@@ -997,7 +997,7 @@ int rt715_sdca_init(struct device *dev, struct regmap *mbq_regmap,
* HW init will be performed when device reports present
*/
rt715->hw_init = false;
- rt715->first_init = false;
+ rt715->first_hw_init = false;
ret = devm_snd_soc_register_component(dev,
&soc_codec_dev_rt715_sdca,
@@ -1018,7 +1018,7 @@ int rt715_sdca_io_init(struct device *dev, struct sdw_slave *slave)
/*
* PM runtime is only enabled when a Slave reports as Attached
*/
- if (!rt715->first_init) {
+ if (!rt715->first_hw_init) {
/* set autosuspend parameters */
pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
pm_runtime_use_autosuspend(&slave->dev);
@@ -1031,7 +1031,7 @@ int rt715_sdca_io_init(struct device *dev, struct sdw_slave *slave)
pm_runtime_enable(&slave->dev);
- rt715->first_init = true;
+ rt715->first_hw_init = true;
}
pm_runtime_get_noresume(&slave->dev);
diff --git a/sound/soc/codecs/rt715-sdca.h b/sound/soc/codecs/rt715-sdca.h
index 85ce4d95e5eb..0c1fdd5bc7ca 100644
--- a/sound/soc/codecs/rt715-sdca.h
+++ b/sound/soc/codecs/rt715-sdca.h
@@ -27,7 +27,7 @@ struct rt715_sdca_priv {
enum sdw_slave_status status;
struct sdw_bus_params params;
bool hw_init;
- bool first_init;
+ bool first_hw_init;
int l_is_unmute;
int r_is_unmute;
int hw_sdw_ver;
