diff mbox series

[02/15] ASoC: max98373-sdw: use first_hw_init flag on resume

Message ID 20210607222239.582139-3-pierre-louis.bossart@linux.intel.com (mailing list archive)
State Accepted
Commit bf881170311ea74ff30c3be0be8fb097132ce696
Headers show
Series ASoC: fixes for SoundWire codec drivers | expand

Commit Message

Pierre-Louis Bossart June 7, 2021, 10:22 p.m. UTC
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.

BugLink: https://github.com/thesofproject/linux/issues/2637
Fixes: 56a5b7910e96 ('ASoC: codecs: max98373: add SoundWire support')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
---
 sound/soc/codecs/max98373-sdw.c | 12 ++++++------
 sound/soc/codecs/max98373.h     |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/sound/soc/codecs/max98373-sdw.c b/sound/soc/codecs/max98373-sdw.c
index c7a3506046db..dc520effc61c 100644
--- a/sound/soc/codecs/max98373-sdw.c
+++ b/sound/soc/codecs/max98373-sdw.c
@@ -271,7 +271,7 @@  static __maybe_unused int max98373_resume(struct device *dev)
 	struct max98373_priv *max98373 = dev_get_drvdata(dev);
 	unsigned long time;
 
-	if (!max98373->hw_init)
+	if (!max98373->first_hw_init)
 		return 0;
 
 	if (!slave->unattach_request)
@@ -362,7 +362,7 @@  static int max98373_io_init(struct sdw_slave *slave)
 	struct device *dev = &slave->dev;
 	struct max98373_priv *max98373 = dev_get_drvdata(dev);
 
-	if (max98373->pm_init_once) {
+	if (max98373->first_hw_init) {
 		regcache_cache_only(max98373->regmap, false);
 		regcache_cache_bypass(max98373->regmap, true);
 	}
@@ -370,7 +370,7 @@  static int max98373_io_init(struct sdw_slave *slave)
 	/*
 	 * PM runtime is only enabled when a Slave reports as Attached
 	 */
-	if (!max98373->pm_init_once) {
+	if (!max98373->first_hw_init) {
 		/* set autosuspend parameters */
 		pm_runtime_set_autosuspend_delay(dev, 3000);
 		pm_runtime_use_autosuspend(dev);
@@ -462,12 +462,12 @@  static int max98373_io_init(struct sdw_slave *slave)
 	regmap_write(max98373->regmap, MAX98373_R20B5_BDE_EN, 1);
 	regmap_write(max98373->regmap, MAX98373_R20E2_LIMITER_EN, 1);
 
-	if (max98373->pm_init_once) {
+	if (max98373->first_hw_init) {
 		regcache_cache_bypass(max98373->regmap, false);
 		regcache_mark_dirty(max98373->regmap);
 	}
 
-	max98373->pm_init_once = true;
+	max98373->first_hw_init = true;
 	max98373->hw_init = true;
 
 	pm_runtime_mark_last_busy(dev);
@@ -797,7 +797,7 @@  static int max98373_init(struct sdw_slave *slave, struct regmap *regmap)
 	max98373_slot_config(dev, max98373);
 
 	max98373->hw_init = false;
-	max98373->pm_init_once = false;
+	max98373->first_hw_init = false;
 
 	/* codec registration  */
 	ret = devm_snd_soc_register_component(dev, &soc_codec_dev_max98373_sdw,
diff --git a/sound/soc/codecs/max98373.h b/sound/soc/codecs/max98373.h
index 73a2cf69d84a..e1810b3b1620 100644
--- a/sound/soc/codecs/max98373.h
+++ b/sound/soc/codecs/max98373.h
@@ -226,7 +226,7 @@  struct max98373_priv {
 	/* variables to support soundwire */
 	struct sdw_slave *slave;
 	bool hw_init;
-	bool pm_init_once;
+	bool first_hw_init;
 	int slot;
 	unsigned int rx_mask;
 };