diff options
| author | Lucas Tanure <tanureal@opensource.cirrus.com> | 2021-03-05 18:34:32 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-03-10 13:51:02 +0100 |
| commit | 19325cfea04446bc79b36bffd4978af15f46a00e (patch) | |
| tree | a9ba22019bcf59e68cd774e642482469cf1ea89a /sound | |
| parent | ASoC: cs42l42: Don't enable/disable regulator at Bias Level (diff) | |
| download | linux-19325cfea04446bc79b36bffd4978af15f46a00e.tar.xz linux-19325cfea04446bc79b36bffd4978af15f46a00e.zip | |
ASoC: cs42l42: Always wait at least 3ms after reset
This delay is part of the power-up sequence defined in the datasheet.
A runtime_resume is a power-up so must also include the delay.
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210305173442.195740-6-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 3 | ||||
| -rw-r--r-- | sound/soc/codecs/cs42l42.h | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index eee3fc320030..811b7b1c9732 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -1756,7 +1756,7 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client, dev_dbg(&i2c_client->dev, "Found reset GPIO\n"); gpiod_set_value_cansleep(cs42l42->reset_gpio, 1); } - mdelay(3); + usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2); /* Request IRQ */ ret = devm_request_threaded_irq(&i2c_client->dev, @@ -1881,6 +1881,7 @@ static int cs42l42_runtime_resume(struct device *dev) } gpiod_set_value_cansleep(cs42l42->reset_gpio, 1); + usleep_range(CS42L42_BOOT_TIME_US, CS42L42_BOOT_TIME_US * 2); regcache_cache_only(cs42l42->regmap, false); regcache_sync(cs42l42->regmap); diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index 9b017b76828a..866d7c873e3c 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -740,6 +740,7 @@ #define CS42L42_FRAC2_VAL(val) (((val) & 0xff0000) >> 16) #define CS42L42_NUM_SUPPLIES 5 +#define CS42L42_BOOT_TIME_US 3000 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = { "VA", |