diff options
Diffstat (limited to 'sound/soc/codecs/rt1308-sdw.c')
| -rw-r--r-- | sound/soc/codecs/rt1308-sdw.c | 79 |
1 files changed, 47 insertions, 32 deletions
diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c index f43520ca3187..b6c224832a43 100644 --- a/sound/soc/codecs/rt1308-sdw.c +++ b/sound/soc/codecs/rt1308-sdw.c @@ -52,6 +52,7 @@ static bool rt1308_volatile_register(struct device *dev, unsigned int reg) case 0x300a: case 0xc000: case 0xc710: + case 0xcf01: case 0xc860 ... 0xc863: case 0xc870 ... 0xc873: return true; @@ -213,35 +214,28 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave) { struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); int ret = 0; - unsigned int tmp; + unsigned int tmp, hibernation_flag; 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 + * PM runtime status is marked as 'active' only when a Slave reports as Attached */ - if (!rt1308->first_hw_init) { - /* set autosuspend parameters */ - pm_runtime_set_autosuspend_delay(&slave->dev, 3000); - pm_runtime_use_autosuspend(&slave->dev); - + if (!rt1308->first_hw_init) /* update count of parent 'active' children */ 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); + regmap_read(rt1308->regmap, 0xcf01, &hibernation_flag); + if ((hibernation_flag != 0x00) && rt1308->first_hw_init) + goto _preset_ready_; + /* sw reset */ regmap_write(rt1308->regmap, RT1308_SDW_RESET, 0); @@ -282,6 +276,12 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave) regmap_write(rt1308->regmap, 0xc100, 0xd7); regmap_write(rt1308->regmap, 0xc101, 0xd7); + /* apply BQ params */ + rt1308_apply_bq_params(rt1308); + + regmap_write(rt1308->regmap, 0xcf01, 0x01); + +_preset_ready_: if (rt1308->first_hw_init) { regcache_cache_bypass(rt1308->regmap, false); regcache_mark_dirty(rt1308->regmap); @@ -291,7 +291,6 @@ static int rt1308_io_init(struct device *dev, struct sdw_slave *slave) /* Mark Slave initialization complete */ rt1308->hw_init = true; - pm_runtime_mark_last_busy(&slave->dev); pm_runtime_put_autosuspend(&slave->dev); dev_dbg(&slave->dev, "%s hw_init complete\n", __func__); @@ -626,6 +625,9 @@ static int rt1308_sdw_component_probe(struct snd_soc_component *component) rt1308->component = component; rt1308_sdw_parse_dt(rt1308, &rt1308->sdw_slave->dev); + if (!rt1308->first_hw_init) + return 0; + ret = pm_runtime_resume(component->dev); if (ret < 0 && ret != -EACCES) return ret; @@ -688,6 +690,8 @@ 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 @@ -699,10 +703,27 @@ static int rt1308_sdw_init(struct device *dev, struct regmap *regmap, &soc_component_sdw_rt1308, rt1308_sdw_dai, ARRAY_SIZE(rt1308_sdw_dai)); + if (ret < 0) + return ret; - dev_dbg(&slave->dev, "%s\n", __func__); + /* set autosuspend parameters */ + pm_runtime_set_autosuspend_delay(dev, 3000); + pm_runtime_use_autosuspend(dev); - return ret; + /* 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(dev, "%s\n", __func__); + + return 0; } static int rt1308_sdw_probe(struct sdw_slave *slave, @@ -715,17 +736,12 @@ static int rt1308_sdw_probe(struct sdw_slave *slave, if (IS_ERR(regmap)) return PTR_ERR(regmap); - rt1308_sdw_init(&slave->dev, regmap, slave); - - return 0; + return rt1308_sdw_init(&slave->dev, regmap, slave); } static int rt1308_sdw_remove(struct sdw_slave *slave) { - struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(&slave->dev); - - if (rt1308->first_hw_init) - pm_runtime_disable(&slave->dev); + pm_runtime_disable(&slave->dev); return 0; } @@ -736,7 +752,7 @@ static const struct sdw_device_id rt1308_id[] = { }; MODULE_DEVICE_TABLE(sdw, rt1308_id); -static int __maybe_unused rt1308_dev_suspend(struct device *dev) +static int rt1308_dev_suspend(struct device *dev) { struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); @@ -750,7 +766,7 @@ static int __maybe_unused rt1308_dev_suspend(struct device *dev) #define RT1308_PROBE_TIMEOUT 5000 -static int __maybe_unused rt1308_dev_resume(struct device *dev) +static int rt1308_dev_resume(struct device *dev) { struct sdw_slave *slave = dev_to_sdw_dev(dev); struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); @@ -780,15 +796,14 @@ regmap_sync: } static const struct dev_pm_ops rt1308_pm = { - SET_SYSTEM_SLEEP_PM_OPS(rt1308_dev_suspend, rt1308_dev_resume) - SET_RUNTIME_PM_OPS(rt1308_dev_suspend, rt1308_dev_resume, NULL) + SYSTEM_SLEEP_PM_OPS(rt1308_dev_suspend, rt1308_dev_resume) + RUNTIME_PM_OPS(rt1308_dev_suspend, rt1308_dev_resume, NULL) }; static struct sdw_driver rt1308_sdw_driver = { .driver = { .name = "rt1308", - .owner = THIS_MODULE, - .pm = &rt1308_pm, + .pm = pm_ptr(&rt1308_pm), }, .probe = rt1308_sdw_probe, .remove = rt1308_sdw_remove, |