[alsa-devel] [v2] ASoC: max98373: Added 10ms sleep after amp software reset
Signed-off-by: Ryan Lee ryans.lee@maximintegrated.com --- Changes since v1 : Applied usleep_range intead of using mdelay
Changes : Applied 10ms delay after amp software reset. 10ms guard time is required for stability.
sound/soc/codecs/max98373.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 2764fae..6aaff03 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -730,6 +730,7 @@ static int max98373_probe(struct snd_soc_component *component) /* Software Reset */ regmap_write(max98373->regmap, MAX98373_R2000_SW_RESET, MAX98373_SOFT_RESET); + usleep_range(10000, 11000);
/* IV default slot configuration */ regmap_write(max98373->regmap, @@ -818,6 +819,7 @@ static int max98373_resume(struct device *dev)
regmap_write(max98373->regmap, MAX98373_R2000_SW_RESET, MAX98373_SOFT_RESET); + usleep_range(10000, 11000); regcache_cache_only(max98373->regmap, false); regcache_sync(max98373->regmap); return 0;
The patch
ASoC: max98373: Added 10ms sleep after amp software reset
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From ca917f9fe1a0fab3dde41bba4bbd173c5a3c5805 Mon Sep 17 00:00:00 2001
From: Ryan Lee ryans.lee@maximintegrated.com Date: Thu, 23 Aug 2018 18:37:08 -0700 Subject: [PATCH] ASoC: max98373: Added 10ms sleep after amp software reset
Signed-off-by: Ryan Lee ryans.lee@maximintegrated.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/max98373.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 2764fae69333..1093f766d0d2 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -730,6 +730,7 @@ static int max98373_probe(struct snd_soc_component *component) /* Software Reset */ regmap_write(max98373->regmap, MAX98373_R2000_SW_RESET, MAX98373_SOFT_RESET); + usleep_range(10000, 11000);
/* IV default slot configuration */ regmap_write(max98373->regmap, @@ -818,6 +819,7 @@ static int max98373_resume(struct device *dev)
regmap_write(max98373->regmap, MAX98373_R2000_SW_RESET, MAX98373_SOFT_RESET); + usleep_range(10000, 11000); regcache_cache_only(max98373->regmap, false); regcache_sync(max98373->regmap); return 0;
participants (2)
-
Mark Brown -
Ryan Lee