The SoundWire bus may start after the probe where the SoundWire ASoC components are registered. This creates a time window where the card can be created and the registers be accessed.
As discussed on the mailing list, we can't really control when codecs are enumerated and initialized, but we can make sure the access to the codecs is cached until the hardware is accessible.
This patch configures regcache_cache_only() with a 'true' parameter in the probe function, and a 'false' parameter in the io_init routine.
The rt5682 is handled through a different patch due to its specific cache handling.
Link: https://lore.kernel.org/alsa-devel/20230503144102.242240-1-krzysztof.kozlows... Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com --- sound/soc/codecs/max98363.c | 7 ++++--- sound/soc/codecs/max98373-sdw.c | 7 ++++--- sound/soc/codecs/rt1308-sdw.c | 7 ++++--- sound/soc/codecs/rt1316-sdw.c | 4 +++- sound/soc/codecs/rt1318-sdw.c | 4 +++- sound/soc/codecs/rt700.c | 7 ++++--- sound/soc/codecs/rt711-sdca.c | 8 ++++++-- sound/soc/codecs/rt711.c | 7 ++++--- sound/soc/codecs/rt712-sdca-dmic.c | 7 +++++-- sound/soc/codecs/rt712-sdca.c | 7 +++++-- sound/soc/codecs/rt715-sdca.c | 7 +++++++ sound/soc/codecs/rt715.c | 4 ++++ 12 files changed, 53 insertions(+), 23 deletions(-)
diff --git a/sound/soc/codecs/max98363.c b/sound/soc/codecs/max98363.c index b5c69bba0e48..80a1cb482183 100644 --- a/sound/soc/codecs/max98363.c +++ b/sound/soc/codecs/max98363.c @@ -160,10 +160,9 @@ static int max98363_io_init(struct sdw_slave *slave) struct max98363_priv *max98363 = dev_get_drvdata(dev); int ret, reg;
- if (max98363->first_hw_init) { - regcache_cache_only(max98363->regmap, false); + regcache_cache_only(max98363->regmap, false); + if (max98363->first_hw_init) regcache_cache_bypass(max98363->regmap, true); - }
/* * PM runtime is only enabled when a Slave reports as Attached @@ -409,6 +408,8 @@ static int max98363_init(struct sdw_slave *slave, struct regmap *regmap) max98363->regmap = regmap; max98363->slave = slave;
+ regcache_cache_only(max98363->regmap, true); + max98363->hw_init = false; max98363->first_hw_init = false;
diff --git a/sound/soc/codecs/max98373-sdw.c b/sound/soc/codecs/max98373-sdw.c index df92242af960..92d2b872f9f8 100644 --- a/sound/soc/codecs/max98373-sdw.c +++ b/sound/soc/codecs/max98373-sdw.c @@ -361,10 +361,9 @@ static int max98373_io_init(struct sdw_slave *slave) struct device *dev = &slave->dev; struct max98373_priv *max98373 = dev_get_drvdata(dev);
- if (max98373->first_hw_init) { - regcache_cache_only(max98373->regmap, false); + regcache_cache_only(max98373->regmap, false); + if (max98373->first_hw_init) regcache_cache_bypass(max98373->regmap, true); - }
/* * PM runtime is only enabled when a Slave reports as Attached @@ -753,6 +752,8 @@ static int max98373_init(struct sdw_slave *slave, struct regmap *regmap) max98373->regmap = regmap; max98373->slave = slave;
+ regcache_cache_only(max98373->regmap, true); + max98373->cache_num = ARRAY_SIZE(max98373_sdw_cache_reg); max98373->cache = devm_kcalloc(dev, max98373->cache_num, sizeof(*max98373->cache), diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c index a7740549d35c..2c4e5330c2df 100644 --- a/sound/soc/codecs/rt1308-sdw.c +++ b/sound/soc/codecs/rt1308-sdw.c @@ -218,10 +218,9 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave) if (rt1308->hw_init) return 0;
- if (rt1308->first_hw_init) { - regcache_cache_only(rt1308->regmap, false); + regcache_cache_only(rt1308->regmap, false); + if (rt1308->first_hw_init) regcache_cache_bypass(rt1308->regmap, true); - }
/* * PM runtime is only enabled when a Slave reports as Attached @@ -688,6 +687,8 @@ static int rt1308_sdw_init(struct device *dev, struct regmap *regmap, rt1308->sdw_slave = slave; rt1308->regmap = regmap;
+ regcache_cache_only(rt1308->regmap, true); + /* * Mark hw_init to false * HW init will be performed when device reports present diff --git a/sound/soc/codecs/rt1316-sdw.c b/sound/soc/codecs/rt1316-sdw.c index 10a53c8d4874..57abbe2de7cf 100644 --- a/sound/soc/codecs/rt1316-sdw.c +++ b/sound/soc/codecs/rt1316-sdw.c @@ -272,8 +272,8 @@ static int rt1316_io_init(struct device *dev, struct sdw_slave *slave) if (rt1316->hw_init) return 0;
+ regcache_cache_only(rt1316->regmap, false); if (rt1316->first_hw_init) { - regcache_cache_only(rt1316->regmap, false); regcache_cache_bypass(rt1316->regmap, true); } else { /* @@ -674,6 +674,8 @@ static int rt1316_sdw_init(struct device *dev, struct regmap *regmap, rt1316->sdw_slave = slave; rt1316->regmap = regmap;
+ regcache_cache_only(rt1316->regmap, true); + /* * Mark hw_init to false * HW init will be performed when device reports present diff --git a/sound/soc/codecs/rt1318-sdw.c b/sound/soc/codecs/rt1318-sdw.c index 16d750102c8c..d7803342f5c2 100644 --- a/sound/soc/codecs/rt1318-sdw.c +++ b/sound/soc/codecs/rt1318-sdw.c @@ -408,8 +408,8 @@ static int rt1318_io_init(struct device *dev, struct sdw_slave *slave) if (rt1318->hw_init) return 0;
+ regcache_cache_only(rt1318->regmap, false); if (rt1318->first_hw_init) { - regcache_cache_only(rt1318->regmap, false); regcache_cache_bypass(rt1318->regmap, true); } else { /* @@ -752,6 +752,8 @@ static int rt1318_sdw_init(struct device *dev, struct regmap *regmap, rt1318->sdw_slave = slave; rt1318->regmap = regmap;
+ regcache_cache_only(rt1318->regmap, true); + /* * Mark hw_init to false * HW init will be performed when device reports present diff --git a/sound/soc/codecs/rt700.c b/sound/soc/codecs/rt700.c index a04b9246256b..b774349dfdae 100644 --- a/sound/soc/codecs/rt700.c +++ b/sound/soc/codecs/rt700.c @@ -1099,6 +1099,8 @@ int rt700_init(struct device *dev, struct regmap *sdw_regmap, rt700->sdw_regmap = sdw_regmap; rt700->regmap = regmap;
+ regcache_cache_only(rt700->regmap, true); + mutex_init(&rt700->disable_irq_lock);
INIT_DELAYED_WORK(&rt700->jack_detect_work, @@ -1132,10 +1134,9 @@ int rt700_io_init(struct device *dev, struct sdw_slave *slave) if (rt700->hw_init) return 0;
- if (rt700->first_hw_init) { - regcache_cache_only(rt700->regmap, false); + regcache_cache_only(rt700->regmap, false); + if (rt700->first_hw_init) regcache_cache_bypass(rt700->regmap, true); - }
/* * PM runtime is only enabled when a Slave reports as Attached diff --git a/sound/soc/codecs/rt711-sdca.c b/sound/soc/codecs/rt711-sdca.c index 07640d2f6e56..bd0f5e05874b 100644 --- a/sound/soc/codecs/rt711-sdca.c +++ b/sound/soc/codecs/rt711-sdca.c @@ -1406,6 +1406,9 @@ int rt711_sdca_init(struct device *dev, struct regmap *regmap, rt711->regmap = regmap; rt711->mbq_regmap = mbq_regmap;
+ regcache_cache_only(rt711->regmap, true); + regcache_cache_only(rt711->mbq_regmap, true); + mutex_init(&rt711->calibrate_mutex); mutex_init(&rt711->disable_irq_lock);
@@ -1500,10 +1503,11 @@ int rt711_sdca_io_init(struct device *dev, struct sdw_slave *slave) if (rt711->hw_init) return 0;
+ regcache_cache_only(rt711->regmap, false); + regcache_cache_only(rt711->mbq_regmap, false); + if (rt711->first_hw_init) { - regcache_cache_only(rt711->regmap, false); regcache_cache_bypass(rt711->regmap, true); - regcache_cache_only(rt711->mbq_regmap, false); regcache_cache_bypass(rt711->mbq_regmap, true); } else { /* diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c index af53cbcc7bf2..0ca955e2f4e7 100644 --- a/sound/soc/codecs/rt711.c +++ b/sound/soc/codecs/rt711.c @@ -1183,6 +1183,8 @@ int rt711_init(struct device *dev, struct regmap *sdw_regmap, rt711->sdw_regmap = sdw_regmap; rt711->regmap = regmap;
+ regcache_cache_only(rt711->regmap, true); + mutex_init(&rt711->calibrate_mutex); mutex_init(&rt711->disable_irq_lock);
@@ -1219,10 +1221,9 @@ int rt711_io_init(struct device *dev, struct sdw_slave *slave) if (rt711->hw_init) return 0;
- if (rt711->first_hw_init) { - regcache_cache_only(rt711->regmap, false); + regcache_cache_only(rt711->regmap, false); + if (rt711->first_hw_init) regcache_cache_bypass(rt711->regmap, true); - }
/* * PM runtime is only enabled when a Slave reports as Attached diff --git a/sound/soc/codecs/rt712-sdca-dmic.c b/sound/soc/codecs/rt712-sdca-dmic.c index 869cc7bfd178..0102bad0b66a 100644 --- a/sound/soc/codecs/rt712-sdca-dmic.c +++ b/sound/soc/codecs/rt712-sdca-dmic.c @@ -182,10 +182,10 @@ static int rt712_sdca_dmic_io_init(struct device *dev, struct sdw_slave *slave) if (rt712->hw_init) return 0;
+ regcache_cache_only(rt712->regmap, false); + regcache_cache_only(rt712->mbq_regmap, false); if (rt712->first_hw_init) { - regcache_cache_only(rt712->regmap, false); regcache_cache_bypass(rt712->regmap, true); - regcache_cache_only(rt712->mbq_regmap, false); regcache_cache_bypass(rt712->mbq_regmap, true); } else { /* @@ -777,6 +777,9 @@ static int rt712_sdca_dmic_init(struct device *dev, struct regmap *regmap, rt712->regmap = regmap; rt712->mbq_regmap = mbq_regmap;
+ regcache_cache_only(rt712->regmap, true); + regcache_cache_only(rt712->mbq_regmap, true); + /* * Mark hw_init to false * HW init will be performed when device reports present diff --git a/sound/soc/codecs/rt712-sdca.c b/sound/soc/codecs/rt712-sdca.c index 89d245655ca4..88f6c895722e 100644 --- a/sound/soc/codecs/rt712-sdca.c +++ b/sound/soc/codecs/rt712-sdca.c @@ -1183,6 +1183,9 @@ int rt712_sdca_init(struct device *dev, struct regmap *regmap, rt712->regmap = regmap; rt712->mbq_regmap = mbq_regmap;
+ regcache_cache_only(rt712->regmap, true); + regcache_cache_only(rt712->mbq_regmap, true); + mutex_init(&rt712->calibrate_mutex); mutex_init(&rt712->disable_irq_lock);
@@ -1224,10 +1227,10 @@ int rt712_sdca_io_init(struct device *dev, struct sdw_slave *slave) if (rt712->hw_init) return 0;
+ regcache_cache_only(rt712->regmap, false); + regcache_cache_only(rt712->mbq_regmap, false); if (rt712->first_hw_init) { - regcache_cache_only(rt712->regmap, false); regcache_cache_bypass(rt712->regmap, true); - regcache_cache_only(rt712->mbq_regmap, false); regcache_cache_bypass(rt712->mbq_regmap, true); } else { /* diff --git a/sound/soc/codecs/rt715-sdca.c b/sound/soc/codecs/rt715-sdca.c index b989f907784b..176340a43446 100644 --- a/sound/soc/codecs/rt715-sdca.c +++ b/sound/soc/codecs/rt715-sdca.c @@ -977,6 +977,10 @@ int rt715_sdca_init(struct device *dev, struct regmap *mbq_regmap, rt715->regmap = regmap; rt715->mbq_regmap = mbq_regmap; rt715->hw_sdw_ver = slave->id.sdw_version; + + regcache_cache_only(rt715->regmap, true); + regcache_cache_only(rt715->mbq_regmap, true); + /* * Mark hw_init to false * HW init will be performed when device reports present @@ -1000,6 +1004,9 @@ int rt715_sdca_io_init(struct device *dev, struct sdw_slave *slave) if (rt715->hw_init) return 0;
+ regcache_cache_only(rt715->regmap, false); + regcache_cache_only(rt715->mbq_regmap, false); + /* * PM runtime is only enabled when a Slave reports as Attached */ diff --git a/sound/soc/codecs/rt715.c b/sound/soc/codecs/rt715.c index 6c2e165dd621..1bd2fe8aa625 100644 --- a/sound/soc/codecs/rt715.c +++ b/sound/soc/codecs/rt715.c @@ -984,6 +984,8 @@ int rt715_init(struct device *dev, struct regmap *sdw_regmap, rt715->regmap = regmap; rt715->sdw_regmap = sdw_regmap;
+ regcache_cache_only(rt715->regmap, true); + /* * Mark hw_init to false * HW init will be performed when device reports present @@ -1006,6 +1008,8 @@ int rt715_io_init(struct device *dev, struct sdw_slave *slave) if (rt715->hw_init) return 0;
+ regcache_cache_only(rt715->regmap, false); + /* * PM runtime is only enabled when a Slave reports as Attached */