diff options
Diffstat (limited to 'sound/soc/codecs/rt700.c')
-rw-r--r-- | sound/soc/codecs/rt700.c | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/sound/soc/codecs/rt700.c b/sound/soc/codecs/rt700.c index a04b9246256b..0ebf344a1b60 100644 --- a/sound/soc/codecs/rt700.c +++ b/sound/soc/codecs/rt700.c @@ -320,6 +320,10 @@ static int rt700_set_jack_detect(struct snd_soc_component *component, rt700->hs_jack = hs_jack; + /* we can only resume if the device was initialized at least once */ + if (!rt700->first_hw_init) + return 0; + ret = pm_runtime_resume_and_get(component->dev); if (ret < 0) { if (ret != -EACCES) { @@ -823,6 +827,9 @@ static int rt700_probe(struct snd_soc_component *component) rt700->component = component; + if (!rt700->first_hw_init) + return 0; + ret = pm_runtime_resume(component->dev); if (ret < 0 && ret != -EACCES) return ret; @@ -1099,6 +1106,8 @@ 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, @@ -1117,10 +1126,26 @@ int rt700_init(struct device *dev, struct regmap *sdw_regmap, &soc_codec_dev_rt700, rt700_dai, ARRAY_SIZE(rt700_dai)); + if (ret < 0) + return ret; + + /* set autosuspend parameters */ + pm_runtime_set_autosuspend_delay(dev, 3000); + pm_runtime_use_autosuspend(dev); + + /* make sure the device does not suspend immediately */ + pm_runtime_mark_last_busy(dev); + + pm_runtime_enable(dev); + /* important note: the device is NOT tagged as 'active' and will remain + * 'suspended' until the hardware is enumerated/initialized. This is required + * to make sure the ASoC framework use of pm_runtime_get_sync() does not silently + * fail with -EACCESS because of race conditions between card creation and enumeration + */ dev_dbg(&slave->dev, "%s\n", __func__); - return ret; + return 0; } int rt700_io_init(struct device *dev, struct sdw_slave *slave) @@ -1132,28 +1157,17 @@ 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 */ - if (!rt700->first_hw_init) { - /* set autosuspend parameters */ - pm_runtime_set_autosuspend_delay(&slave->dev, 3000); - pm_runtime_use_autosuspend(&slave->dev); - - /* update count of parent 'active' children */ + if (!rt700->first_hw_init) + /* PM runtime status is marked as 'active' only when a Slave reports as Attached */ pm_runtime_set_active(&slave->dev); - /* make sure the device does not suspend immediately */ - pm_runtime_mark_last_busy(&slave->dev); - - pm_runtime_enable(&slave->dev); - } - pm_runtime_get_noresume(&slave->dev); /* reset */ |