diff mbox series

[1/4] ASoC: tas2764: Add post reset delays

Message ID 20220630075135.2221-1-povik+lin@cutebit.org
State Accepted
Commit cd10bb89b0d57bca98eb75e0444854a1c129a14e
Headers show
Series [1/4] ASoC: tas2764: Add post reset delays | expand

Commit Message

Martin Povišer June 30, 2022, 7:51 a.m. UTC 
Make sure there is at least 1 ms delay from reset to first command as
is specified in the datasheet. This is a fix similar to commit
307f31452078 ("ASoC: tas2770: Insert post reset delay").

Fixes: 827ed8a0fa50 ("ASoC: tas2764: Add the driver for the TAS2764")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
---
 sound/soc/codecs/tas2764.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c
index 42f0c1e449ba..039bf1900880 100644
--- a/sound/soc/codecs/tas2764.c
+++ b/sound/soc/codecs/tas2764.c
@@ -42,10 +42,12 @@  static void tas2764_reset(struct tas2764_priv *tas2764)
 		gpiod_set_value_cansleep(tas2764->reset_gpio, 0);
 		msleep(20);
 		gpiod_set_value_cansleep(tas2764->reset_gpio, 1);
+		usleep_range(1000, 2000);
 	}
 
 	snd_soc_component_write(tas2764->component, TAS2764_SW_RST,
 				TAS2764_RST);
+	usleep_range(1000, 2000);
 }
 
 static int tas2764_set_bias_level(struct snd_soc_component *component,
@@ -107,8 +109,10 @@  static int tas2764_codec_resume(struct snd_soc_component *component)
 	struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component);
 	int ret;
 
-	if (tas2764->sdz_gpio)
+	if (tas2764->sdz_gpio) {
 		gpiod_set_value_cansleep(tas2764->sdz_gpio, 1);
+		usleep_range(1000, 2000);
+	}
 
 	ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL,
 					    TAS2764_PWR_CTRL_MASK,
@@ -501,8 +505,10 @@  static int tas2764_codec_probe(struct snd_soc_component *component)
 
 	tas2764->component = component;
 
-	if (tas2764->sdz_gpio)
+	if (tas2764->sdz_gpio) {
 		gpiod_set_value_cansleep(tas2764->sdz_gpio, 1);
+		usleep_range(1000, 2000);
+	}
 
 	tas2764_reset(tas2764);