| Message ID | 20220204095301.5554-1-povik+lin@cutebit.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 307f31452078792aab94a729fce33200c6e42dc4 |
| Headers | show |
| Series | [v2] ASoC: tas2770: Insert post reset delay | expand |
On Fri, 4 Feb 2022 10:53:01 +0100, Martin Povišer wrote: > Per TAS2770 datasheet there must be a 1 ms delay from reset to first > command. So insert delays into the driver where appropriate. > > Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-linus Thanks! [1/1] ASoC: tas2770: Insert post reset delay commit: 307f31452078792aab94a729fce33200c6e42dc4 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
diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c index b52c0861edc8..b397a2122dd4 100644 --- a/sound/soc/codecs/tas2770.c +++ b/sound/soc/codecs/tas2770.c @@ -38,10 +38,12 @@ static void tas2770_reset(struct tas2770_priv *tas2770) gpiod_set_value_cansleep(tas2770->reset_gpio, 0); msleep(20); gpiod_set_value_cansleep(tas2770->reset_gpio, 1); + usleep_range(1000, 2000); } snd_soc_component_write(tas2770->component, TAS2770_SW_RST, TAS2770_RST); + usleep_range(1000, 2000); } static int tas2770_set_bias_level(struct snd_soc_component *component, @@ -110,6 +112,7 @@ static int tas2770_codec_resume(struct snd_soc_component *component) if (tas2770->sdz_gpio) { gpiod_set_value_cansleep(tas2770->sdz_gpio, 1); + usleep_range(1000, 2000); } else { ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, TAS2770_PWR_CTRL_MASK, @@ -529,8 +532,10 @@ static int tas2770_codec_probe(struct snd_soc_component *component) tas2770->component = component; - if (tas2770->sdz_gpio) + if (tas2770->sdz_gpio) { gpiod_set_value_cansleep(tas2770->sdz_gpio, 1); + usleep_range(1000, 2000); + } tas2770_reset(tas2770);
Per TAS2770 datasheet there must be a 1 ms delay from reset to first command. So insert delays into the driver where appropriate. Fixes: 1a476abc723e ("tas2770: add tas2770 smart PA kernel driver") Signed-off-by: Martin Povišer <povik+lin@cutebit.org> --- In previous submission of this patch some people got their copy encrypted. That was by accident, pardon that. I have changed my email provider since. v1: https://lore.kernel.org/alsa-devel/20220201234612.74401-1-povik+lin@protonmail.com/ sound/soc/codecs/tas2770.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)