From 08bb5dc6ce02374169213cea772b1c297eaf32d5 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Mon, 6 Jun 2022 15:37:49 -0500 Subject: ASoC: rt711: fix calibrate mutex initialization Follow the same flow as rt711-sdca and initialize all mutexes at probe time. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Bard Liao Link: https://lore.kernel.org/r/20220606203752.144159-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/codecs/rt711.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sound/soc/codecs/rt711.c') diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c index 9838fb4d5b9c..1e35ba433a7e 100644 --- a/sound/soc/codecs/rt711.c +++ b/sound/soc/codecs/rt711.c @@ -1204,6 +1204,7 @@ int rt711_init(struct device *dev, struct regmap *sdw_regmap, rt711->sdw_regmap = sdw_regmap; rt711->regmap = regmap; + mutex_init(&rt711->calibrate_mutex); mutex_init(&rt711->disable_irq_lock); /* @@ -1318,7 +1319,6 @@ int rt711_io_init(struct device *dev, struct sdw_slave *slave) rt711_jack_detect_handler); INIT_DELAYED_WORK(&rt711->jack_btn_check_work, rt711_btn_check_handler); - mutex_init(&rt711->calibrate_mutex); INIT_WORK(&rt711->calibration_work, rt711_calibration_work); schedule_work(&rt711->calibration_work); } -- cgit v1.2.3-59-g8ed1b From 0484271ab0ce50649329fa9dc23c50853c5b26a4 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Mon, 6 Jun 2022 15:37:50 -0500 Subject: ASoC: rt7*-sdw: harden jack_detect_handler Realtek headset codec drivers typically check if the card is instantiated before proceeding with the jack detection. The rt700, rt711 and rt711-sdca are however missing a check on the card pointer, which can lead to NULL dereferences encountered in driver bind/unbind tests. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Bard Liao Link: https://lore.kernel.org/r/20220606203752.144159-6-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/codecs/rt700.c | 2 +- sound/soc/codecs/rt711-sdca.c | 2 +- sound/soc/codecs/rt711.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'sound/soc/codecs/rt711.c') diff --git a/sound/soc/codecs/rt700.c b/sound/soc/codecs/rt700.c index af32295fa9b9..4a99d5f4706f 100644 --- a/sound/soc/codecs/rt700.c +++ b/sound/soc/codecs/rt700.c @@ -162,7 +162,7 @@ static void rt700_jack_detect_handler(struct work_struct *work) if (!rt700->hs_jack) return; - if (!rt700->component->card->instantiated) + if (!rt700->component->card || !rt700->component->card->instantiated) return; reg = RT700_VERB_GET_PIN_SENSE | RT700_HP_OUT; diff --git a/sound/soc/codecs/rt711-sdca.c b/sound/soc/codecs/rt711-sdca.c index af73bcb4560a..93b36f05cb56 100644 --- a/sound/soc/codecs/rt711-sdca.c +++ b/sound/soc/codecs/rt711-sdca.c @@ -294,7 +294,7 @@ static void rt711_sdca_jack_detect_handler(struct work_struct *work) if (!rt711->hs_jack) return; - if (!rt711->component->card->instantiated) + if (!rt711->component->card || !rt711->component->card->instantiated) return; /* SDW_SCP_SDCA_INT_SDCA_0 is used for jack detection */ diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c index 1e35ba433a7e..2f445b27305a 100644 --- a/sound/soc/codecs/rt711.c +++ b/sound/soc/codecs/rt711.c @@ -242,7 +242,7 @@ static void rt711_jack_detect_handler(struct work_struct *work) if (!rt711->hs_jack) return; - if (!rt711->component->card->instantiated) + if (!rt711->component->card || !rt711->component->card->instantiated) return; if (pm_runtime_status_suspended(rt711->slave->dev.parent)) { -- cgit v1.2.3-59-g8ed1b From ba98d7d8b60ba410aa03834f6aa48fd3b2e68478 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Mon, 6 Jun 2022 15:37:51 -0500 Subject: ASoC: codecs: rt700/rt711/rt711-sdca: initialize workqueues in probe The workqueues are initialized in the io_init functions, which isn't quite right. In some tests, this leads to warnings throw from __queue_delayed_work() WARN_ON_FUNCTION_MISMATCH(timer->function, delayed_work_timer_fn); Move all the initializations to the probe functions. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Bard Liao Link: https://lore.kernel.org/r/20220606203752.144159-7-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/codecs/rt700.c | 12 +++++------- sound/soc/codecs/rt711-sdca.c | 10 +++------- sound/soc/codecs/rt711.c | 12 +++++------- 3 files changed, 13 insertions(+), 21 deletions(-) (limited to 'sound/soc/codecs/rt711.c') diff --git a/sound/soc/codecs/rt700.c b/sound/soc/codecs/rt700.c index 4a99d5f4706f..7a6cf3434591 100644 --- a/sound/soc/codecs/rt700.c +++ b/sound/soc/codecs/rt700.c @@ -1115,6 +1115,11 @@ int rt700_init(struct device *dev, struct regmap *sdw_regmap, mutex_init(&rt700->disable_irq_lock); + INIT_DELAYED_WORK(&rt700->jack_detect_work, + rt700_jack_detect_handler); + INIT_DELAYED_WORK(&rt700->jack_btn_check_work, + rt700_btn_check_handler); + /* * Mark hw_init to false * HW init will be performed when device reports present @@ -1209,13 +1214,6 @@ int rt700_io_init(struct device *dev, struct sdw_slave *slave) /* Finish Initial Settings, set power to D3 */ regmap_write(rt700->regmap, RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D3); - if (!rt700->first_hw_init) { - INIT_DELAYED_WORK(&rt700->jack_detect_work, - rt700_jack_detect_handler); - INIT_DELAYED_WORK(&rt700->jack_btn_check_work, - rt700_btn_check_handler); - } - /* * if set_jack callback occurred early than io_init, * we set up the jack detection function now diff --git a/sound/soc/codecs/rt711-sdca.c b/sound/soc/codecs/rt711-sdca.c index 93b36f05cb56..2b3b77577d1f 100644 --- a/sound/soc/codecs/rt711-sdca.c +++ b/sound/soc/codecs/rt711-sdca.c @@ -1415,6 +1415,9 @@ int rt711_sdca_init(struct device *dev, struct regmap *regmap, mutex_init(&rt711->calibrate_mutex); mutex_init(&rt711->disable_irq_lock); + INIT_DELAYED_WORK(&rt711->jack_detect_work, rt711_sdca_jack_detect_handler); + INIT_DELAYED_WORK(&rt711->jack_btn_check_work, rt711_sdca_btn_check_handler); + /* * Mark hw_init to false * HW init will be performed when device reports present @@ -1546,13 +1549,6 @@ int rt711_sdca_io_init(struct device *dev, struct sdw_slave *slave) rt711_sdca_index_update_bits(rt711, RT711_VENDOR_HDA_CTL, RT711_PUSH_BTN_INT_CTL0, 0x20, 0x00); - if (!rt711->first_hw_init) { - INIT_DELAYED_WORK(&rt711->jack_detect_work, - rt711_sdca_jack_detect_handler); - INIT_DELAYED_WORK(&rt711->jack_btn_check_work, - rt711_sdca_btn_check_handler); - } - /* calibration */ ret = rt711_sdca_calibration(rt711); if (ret < 0) diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c index 2f445b27305a..5709a6bbe8fc 100644 --- a/sound/soc/codecs/rt711.c +++ b/sound/soc/codecs/rt711.c @@ -1207,6 +1207,10 @@ int rt711_init(struct device *dev, struct regmap *sdw_regmap, mutex_init(&rt711->calibrate_mutex); mutex_init(&rt711->disable_irq_lock); + INIT_DELAYED_WORK(&rt711->jack_detect_work, rt711_jack_detect_handler); + INIT_DELAYED_WORK(&rt711->jack_btn_check_work, rt711_btn_check_handler); + INIT_WORK(&rt711->calibration_work, rt711_calibration_work); + /* * Mark hw_init to false * HW init will be performed when device reports present @@ -1314,14 +1318,8 @@ int rt711_io_init(struct device *dev, struct sdw_slave *slave) if (rt711->first_hw_init) rt711_calibration(rt711); - else { - INIT_DELAYED_WORK(&rt711->jack_detect_work, - rt711_jack_detect_handler); - INIT_DELAYED_WORK(&rt711->jack_btn_check_work, - rt711_btn_check_handler); - INIT_WORK(&rt711->calibration_work, rt711_calibration_work); + else schedule_work(&rt711->calibration_work); - } /* * if set_jack callback occurred early than io_init, -- cgit v1.2.3-59-g8ed1b From 40737057b48f1b4db67b0d766b95c87ba8fc5e03 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Mon, 6 Jun 2022 15:37:52 -0500 Subject: ASoC: codecs: rt700/rt711/rt711-sdca: resume bus/codec in .set_jack_detect The .set_jack_detect() codec component callback is invoked during card registration, which happens when the machine driver is probed. The issue is that this callback can race with the bus suspend/resume, and IO timeouts can happen. This can be reproduced very easily if the machine driver is 'blacklisted' and manually probed after the bus suspends. The bus and codec need to be re-initialized using pm_runtime helpers. Previous contributions tried to make sure accesses to the bus during the .set_jack_detect() component callback only happen when the bus is active. This was done by changing the regcache status on a component remove. This is however a layering violation, the regcache status should only be modified on device probe, suspend and resume. The component probe/remove should not modify how the device regcache is handled. This solution also didn't handle all the possible race conditions, and the RT700 headset codec was not handled. This patch tries to resume the codec device before handling the jack initializations. In case the codec has not yet been initialized, pm_runtime may not be enabled yet, so we don't squelch the -EACCES error code and only stop the jack information. When the codec reports as attached, the jack initialization will proceed as usual. BugLink: https://github.com/thesofproject/linux/issues/3643 Fixes: 7ad4d237e7c4a ('ASoC: rt711-sdca: Add RT711 SDCA vendor-specific driver') Fixes: 899b12542b089 ('ASoC: rt711: add snd_soc_component remove callback') Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Bard Liao Link: https://lore.kernel.org/r/20220606203752.144159-8-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/codecs/rt700.c | 16 +++++++++++++--- sound/soc/codecs/rt711-sdca.c | 26 ++++++++++++++------------ sound/soc/codecs/rt711.c | 24 +++++++++++++----------- 3 files changed, 40 insertions(+), 26 deletions(-) (limited to 'sound/soc/codecs/rt711.c') diff --git a/sound/soc/codecs/rt700.c b/sound/soc/codecs/rt700.c index 7a6cf3434591..9bceeeb830b1 100644 --- a/sound/soc/codecs/rt700.c +++ b/sound/soc/codecs/rt700.c @@ -315,17 +315,27 @@ static int rt700_set_jack_detect(struct snd_soc_component *component, struct snd_soc_jack *hs_jack, void *data) { struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component); + int ret; rt700->hs_jack = hs_jack; - if (!rt700->hw_init) { - dev_dbg(&rt700->slave->dev, - "%s hw_init not ready yet\n", __func__); + ret = pm_runtime_resume_and_get(component->dev); + if (ret < 0) { + if (ret != -EACCES) { + dev_err(component->dev, "%s: failed to resume %d\n", __func__, ret); + return ret; + } + + /* pm_runtime not enabled yet */ + dev_dbg(component->dev, "%s: skipping jack init for now\n", __func__); return 0; } rt700_jack_init(rt700); + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + return 0; } diff --git a/sound/soc/codecs/rt711-sdca.c b/sound/soc/codecs/rt711-sdca.c index 2b3b77577d1f..dfe3c9299ebd 100644 --- a/sound/soc/codecs/rt711-sdca.c +++ b/sound/soc/codecs/rt711-sdca.c @@ -487,16 +487,27 @@ static int rt711_sdca_set_jack_detect(struct snd_soc_component *component, struct snd_soc_jack *hs_jack, void *data) { struct rt711_sdca_priv *rt711 = snd_soc_component_get_drvdata(component); + int ret; rt711->hs_jack = hs_jack; - if (!rt711->hw_init) { - dev_dbg(&rt711->slave->dev, - "%s hw_init not ready yet\n", __func__); + ret = pm_runtime_resume_and_get(component->dev); + if (ret < 0) { + if (ret != -EACCES) { + dev_err(component->dev, "%s: failed to resume %d\n", __func__, ret); + return ret; + } + + /* pm_runtime not enabled yet */ + dev_dbg(component->dev, "%s: skipping jack init for now\n", __func__); return 0; } rt711_sdca_jack_init(rt711); + + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + return 0; } @@ -1190,14 +1201,6 @@ static int rt711_sdca_probe(struct snd_soc_component *component) return 0; } -static void rt711_sdca_remove(struct snd_soc_component *component) -{ - struct rt711_sdca_priv *rt711 = snd_soc_component_get_drvdata(component); - - regcache_cache_only(rt711->regmap, true); - regcache_cache_only(rt711->mbq_regmap, true); -} - static const struct snd_soc_component_driver soc_sdca_dev_rt711 = { .probe = rt711_sdca_probe, .controls = rt711_sdca_snd_controls, @@ -1207,7 +1210,6 @@ static const struct snd_soc_component_driver soc_sdca_dev_rt711 = { .dapm_routes = rt711_sdca_audio_map, .num_dapm_routes = ARRAY_SIZE(rt711_sdca_audio_map), .set_jack = rt711_sdca_set_jack_detect, - .remove = rt711_sdca_remove, .endianness = 1, }; diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c index 5709a6bbe8fc..9df800abfc2d 100644 --- a/sound/soc/codecs/rt711.c +++ b/sound/soc/codecs/rt711.c @@ -457,17 +457,27 @@ static int rt711_set_jack_detect(struct snd_soc_component *component, struct snd_soc_jack *hs_jack, void *data) { struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component); + int ret; rt711->hs_jack = hs_jack; - if (!rt711->hw_init) { - dev_dbg(&rt711->slave->dev, - "%s hw_init not ready yet\n", __func__); + ret = pm_runtime_resume_and_get(component->dev); + if (ret < 0) { + if (ret != -EACCES) { + dev_err(component->dev, "%s: failed to resume %d\n", __func__, ret); + return ret; + } + + /* pm_runtime not enabled yet */ + dev_dbg(component->dev, "%s: skipping jack init for now\n", __func__); return 0; } rt711_jack_init(rt711); + pm_runtime_mark_last_busy(component->dev); + pm_runtime_put_autosuspend(component->dev); + return 0; } @@ -932,13 +942,6 @@ static int rt711_probe(struct snd_soc_component *component) return 0; } -static void rt711_remove(struct snd_soc_component *component) -{ - struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component); - - regcache_cache_only(rt711->regmap, true); -} - static const struct snd_soc_component_driver soc_codec_dev_rt711 = { .probe = rt711_probe, .set_bias_level = rt711_set_bias_level, @@ -949,7 +952,6 @@ static const struct snd_soc_component_driver soc_codec_dev_rt711 = { .dapm_routes = rt711_audio_map, .num_dapm_routes = ARRAY_SIZE(rt711_audio_map), .set_jack = rt711_set_jack_detect, - .remove = rt711_remove, .endianness = 1, }; -- cgit v1.2.3-59-g8ed1b