The patch ASoC: tas571x: extend the t_i2c time to comply with TAS5721 has been applied to the asoc tree at git://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 e54de7f555970915c3856e7709a7ff74d352f315 Mon Sep 17 00:00:00 2001 From: Petr Kulhavy <brain@xxxxxxxx> Date: Mon, 3 Oct 2016 16:40:47 +0200 Subject: [PATCH] ASoC: tas571x: extend the t_i2c time to comply with TAS5721 TAS5721 datasheet recommends to wait at least 13.5ms after deasserting the RESET signal. For TAS5717 this time is only 12ms, which was the original value in the code. Extend the wait time after deasserting RESET from 12 to 13.5ms to comply with the TAS5721 specification. Signed-off-by: Petr Kulhavy <brain@xxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> --- sound/soc/codecs/tas571x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c index 34e4ce6f23d8..512b9e663e89 100644 --- a/sound/soc/codecs/tas571x.c +++ b/sound/soc/codecs/tas571x.c @@ -747,7 +747,7 @@ static int tas571x_i2c_probe(struct i2c_client *client, /* pulse the active low reset line for ~100us */ usleep_range(100, 200); gpiod_set_value(priv->reset_gpio, 0); - usleep_range(12000, 20000); + usleep_range(13500, 20000); } ret = regmap_write(priv->regmap, TAS571X_OSC_TRIM_REG, 0); -- 2.9.3 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
