[PATCH 0/5] ASoC: tas571x: fix of several issues for TAS5717

[PATCH 0/5] ASoC: tas571x: fix of several issues for TAS5717

[Petr Kulhavy]

An extensive usage of the TAS571x driver with the TAS5717 chip revealed several
issues which in the first place caused audio to fail to play. This set of
one-line and trivial patches fixes them. 

The issues were:
* improper handling of the power-down signal
* some timings not obeyed
* bias level not saved in the driver
* channel mixer volume controls in the wrong chip structure ;-)

Petr Kulhavy (5):
  ASoC: tas571x: fix missing bias save level
  ASoC: tas571x: extend the t_i2c time to comply with TAS5721
  ASoC: tas571x: remove improper PDN signal usage in set_bias_level
  ASoC: tas571x: wait 50ms after oscillator trim
  ASoC: tas571x: move mixer volume controls from TAS5711 to TAS5717

 sound/soc/codecs/tas571x.c | 38 +++++++++++++-------------------------
 1 file changed, 13 insertions(+), 25 deletions(-)

-- 
2.7.4

[PATCH 1/5] ASoC: tas571x: fix missing bias save level

[Petr Kulhavy]

The tas571x_set_bias_level() was not saving the new bias level to
codec->dapm.bias_level. This had the effect that bias was switching between
standby and off levels and never entered the on level.

This fix saves the bias level before returning from the function.

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
---
 sound/soc/codecs/tas571x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index df5e5cb..e996313 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -360,6 +360,7 @@ static int tas571x_set_bias_level(struct snd_soc_codec *codec,
 		break;
 	}
 
+	codec->dapm.bias_level = level;
 	return 0;
 }
 
-- 
2.7.4

[PATCH 2/5] ASoC: tas571x: extend the t_i2c time to comply with TAS5721

[Petr Kulhavy]

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@jikos.cz>
---
 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 e996313..4d61357 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -748,7 +748,7 @@ 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);
-- 
2.7.4

[PATCH 3/5] ASoC: tas571x: remove improper PDN signal usage in set_bias_level

[Petr Kulhavy]

The set_bias_level toggles the PDN signal when entering
SND_SOC_BIAS_STANDBY and SND_SOC_BIAS_OFF. However this has no effect and
actually breaks things down (tested with TAS5717) due to the following
reasons:

1) holding down PDN does not save power but holding down RST does
2) now hard mute via register 0x5 is implemented and therefore it is no
   longer needed to toggle PDN to enter all channel shut down
3) in order to leave PDN it is required to toggle the RST signal (see
   TAS5721 datasheet), which was not implemented
4) toggling PDN as implemented actually mutes PWMs and there is no audio
   output (tested on TAS5717)

For these reasons remove the PDN signal toggling and just initialize it to
inactive in probe().

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
---
 sound/soc/codecs/tas571x.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index 4d61357..a8a3279 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -341,20 +341,9 @@ static int tas571x_set_bias_level(struct snd_soc_codec *codec,
 					return ret;
 				}
 			}
-
-			gpiod_set_value(priv->pdn_gpio, 0);
-			usleep_range(5000, 6000);
-
-			regcache_cache_only(priv->regmap, false);
-			ret = regcache_sync(priv->regmap);
-			if (ret)
-				return ret;
 		}
 		break;
 	case SND_SOC_BIAS_OFF:
-		regcache_cache_only(priv->regmap, true);
-		gpiod_set_value(priv->pdn_gpio, 1);
-
 		if (!IS_ERR(priv->mclk))
 			clk_disable_unprepare(priv->mclk);
 		break;
@@ -771,9 +760,6 @@ static int tas571x_i2c_probe(struct i2c_client *client,
 			return ret;
 	}
 
-	regcache_cache_only(priv->regmap, true);
-	gpiod_set_value(priv->pdn_gpio, 1);
-
 	return snd_soc_register_codec(&client->dev, &priv->codec_driver,
 				      &tas571x_dai, 1);
 }
-- 
2.7.4

[PATCH 4/5] ASoC: tas571x: wait 50ms after oscillator trim

[Petr Kulhavy]

Wait extra 50ms after writing the oscillator trim register in probe(), as
recommended by the TAS5721 and TAS5711 datasheets.

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
---
 sound/soc/codecs/tas571x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index a8a3279..f3252af 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -744,6 +744,7 @@ static int tas571x_i2c_probe(struct i2c_client *client,
 	if (ret)
 		return ret;
 
+	usleep_range(50000, 60000);
 
 	memcpy(&priv->codec_driver, &tas571x_codec, sizeof(priv->codec_driver));
 	priv->codec_driver.component_driver.controls = priv->chip->controls;
-- 
2.7.4

[PATCH 5/5] ASoC: tas571x: move mixer volume controls from TAS5711 to TAS5717

[Petr Kulhavy]

Channel 1 and 2 Mixer Volume controls (registers 0x72/0x73 and 0x76/0x77)
were wrongly assigned to tas5711_controls in commit f252d2346022
("ASoC: tas571x: add input channel mixer for TAS5717/19")

Therefore move them to tas5717_controls.

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
---
 sound/soc/codecs/tas571x.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index f3252af..71790a1 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -391,16 +391,6 @@ static const struct snd_kcontrol_new tas5711_controls[] = {
 		   TAS571X_SOFT_MUTE_REG,
 		   TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 		   1, 1),
-
-	SOC_DOUBLE_R_RANGE("CH1 Mixer Volume",
-			   TAS5717_CH1_LEFT_CH_MIX_REG,
-			   TAS5717_CH1_RIGHT_CH_MIX_REG,
-			   16, 0, 0x80, 0),
-
-	SOC_DOUBLE_R_RANGE("CH2 Mixer Volume",
-			   TAS5717_CH2_LEFT_CH_MIX_REG,
-			   TAS5717_CH2_RIGHT_CH_MIX_REG,
-			   16, 0, 0x80, 0),
 };
 
 static const struct regmap_range tas571x_readonly_regs_range[] = {
@@ -478,6 +468,16 @@ static const struct snd_kcontrol_new tas5717_controls[] = {
 		   TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 		   1, 1),
 
+	SOC_DOUBLE_R_RANGE("CH1 Mixer Volume",
+			   TAS5717_CH1_LEFT_CH_MIX_REG,
+			   TAS5717_CH1_RIGHT_CH_MIX_REG,
+			   16, 0, 0x80, 0),
+
+	SOC_DOUBLE_R_RANGE("CH2 Mixer Volume",
+			   TAS5717_CH2_LEFT_CH_MIX_REG,
+			   TAS5717_CH2_RIGHT_CH_MIX_REG,
+			   16, 0, 0x80, 0),
+
 	/*
 	 * The biquads are named according to the register names.
 	 * Please note that TI's TAS57xx Graphical Development Environment
-- 
2.7.4

Re: [PATCH 1/5] ASoC: tas571x: fix missing bias save level

[Lars-Peter Clausen]

On 10/03/2016 04:40 PM, Petr Kulhavy wrote:
> The tas571x_set_bias_level() was not saving the new bias level to
> codec->dapm.bias_level. This had the effect that bias was switching between
> standby and off levels and never entered the on level.
> 
> This fix saves the bias level before returning from the function.
> 

This is done by the ASoC core after the function completes, so this should
not be necessary.

Re: [PATCH 1/5] ASoC: tas571x: fix missing bias save level

[Petr Kulhavy]

On 03/10/16 19:09, Lars-Peter Clausen wrote:
> On 10/03/2016 04:40 PM, Petr Kulhavy wrote:
>> The tas571x_set_bias_level() was not saving the new bias level to
>> codec->dapm.bias_level. This had the effect that bias was switching between
>> standby and off levels and never entered the on level.
>>
>> This fix saves the bias level before returning from the function.
>>
> This is done by the ASoC core after the function completes, so this should
> not be necessary.
Hi Lars,

since what kernel version is it handled by the ASoC core?
I've been testing it on a 4.1 based iMX kernel and there the bias levels 
were handled improperly...

Thanks
Petr

Re: [PATCH 1/5] ASoC: tas571x: fix missing bias save level

[Lars-Peter Clausen]

On 10/03/2016 09:00 PM, Petr Kulhavy wrote:
> 
> On 03/10/16 19:09, Lars-Peter Clausen wrote:
>> On 10/03/2016 04:40 PM, Petr Kulhavy wrote:
>>> The tas571x_set_bias_level() was not saving the new bias level to
>>> codec->dapm.bias_level. This had the effect that bias was switching between
>>> standby and off levels and never entered the on level.
>>>
>>> This fix saves the bias level before returning from the function.
>>>
>> This is done by the ASoC core after the function completes, so this should
>> not be necessary.
> Hi Lars,
> 
> since what kernel version is it handled by the ASoC core?
> I've been testing it on a 4.1 based iMX kernel and there the bias levels

Since v4.2. This is the commit:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fa880775ab0d5a8d540972f7b6800fad1af16b75

Re: [PATCH 1/5] ASoC: tas571x: fix missing bias save level

[Lars-Peter Clausen]

On 10/03/2016 09:11 PM, Lars-Peter Clausen wrote:
> On 10/03/2016 09:00 PM, Petr Kulhavy wrote:
>>
>> On 03/10/16 19:09, Lars-Peter Clausen wrote:
>>> On 10/03/2016 04:40 PM, Petr Kulhavy wrote:
>>>> The tas571x_set_bias_level() was not saving the new bias level to
>>>> codec->dapm.bias_level. This had the effect that bias was switching between
>>>> standby and off levels and never entered the on level.
>>>>
>>>> This fix saves the bias level before returning from the function.
>>>>
>>> This is done by the ASoC core after the function completes, so this should
>>> not be necessary.
>> Hi Lars,
>>
>> since what kernel version is it handled by the ASoC core?
>> I've been testing it on a 4.1 based iMX kernel and there the bias levels
> 
> Since v4.2. This is the commit:
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fa880775ab0d5a8d540972f7b6800fad1af16b75

Sorry, wrong ID, this one is it:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f4bf8d770b58862c2af9d17adc2fee05bef8f2c0

Re: [PATCH 1/5] ASoC: tas571x: fix missing bias save level

[Petr Kulhavy]

On 03/10/16 21:13, Lars-Peter Clausen wrote:
> On 10/03/2016 09:11 PM, Lars-Peter Clausen wrote:
>> On 10/03/2016 09:00 PM, Petr Kulhavy wrote:
>>> On 03/10/16 19:09, Lars-Peter Clausen wrote:
>>>> On 10/03/2016 04:40 PM, Petr Kulhavy wrote:
>>>>> The tas571x_set_bias_level() was not saving the new bias level to
>>>>> codec->dapm.bias_level. This had the effect that bias was switching between
>>>>> standby and off levels and never entered the on level.
>>>>>
>>>>> This fix saves the bias level before returning from the function.
>>>>>
>>>> This is done by the ASoC core after the function completes, so this should
>>>> not be necessary.
>>> Hi Lars,
>>>
>>> since what kernel version is it handled by the ASoC core?
>>> I've been testing it on a 4.1 based iMX kernel and there the bias levels
>> Since v4.2. This is the commit:
>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fa880775ab0d5a8d540972f7b6800fad1af16b75
> Sorry, wrong ID, this one is it:
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f4bf8d770b58862c2af9d17adc2fee05bef8f2c0

OK, that explains. Then this patch can be dropped.

Thanks
Petr

Applied "ASoC: tas571x: remove improper PDN signal usage in set_bias_level" to the asoc tree

[Mark Brown]

The patch

   ASoC: tas571x: remove improper PDN signal usage in set_bias_level

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 8b0678dc914271e9ad4317fe82555ead92ce1cb9 Mon Sep 17 00:00:00 2001
From: Petr Kulhavy <brain@jikos.cz>
Date: Mon, 3 Oct 2016 16:40:48 +0200
Subject: [PATCH] ASoC: tas571x: remove improper PDN signal usage in
 set_bias_level

The set_bias_level toggles the PDN signal when entering
SND_SOC_BIAS_STANDBY and SND_SOC_BIAS_OFF. However this has no effect and
actually breaks things down (tested with TAS5717) due to the following
reasons:

1) holding down PDN does not save power but holding down RST does
2) now hard mute via register 0x5 is implemented and therefore it is no
   longer needed to toggle PDN to enter all channel shut down
3) in order to leave PDN it is required to toggle the RST signal (see
   TAS5721 datasheet), which was not implemented
4) toggling PDN as implemented actually mutes PWMs and there is no audio
   output (tested on TAS5717)

For these reasons remove the PDN signal toggling and just initialize it to
inactive in probe().

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/codecs/tas571x.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index 512b9e663e89..810369f687d7 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -341,20 +341,9 @@ static int tas571x_set_bias_level(struct snd_soc_codec *codec,
 					return ret;
 				}
 			}
-
-			gpiod_set_value(priv->pdn_gpio, 0);
-			usleep_range(5000, 6000);
-
-			regcache_cache_only(priv->regmap, false);
-			ret = regcache_sync(priv->regmap);
-			if (ret)
-				return ret;
 		}
 		break;
 	case SND_SOC_BIAS_OFF:
-		regcache_cache_only(priv->regmap, true);
-		gpiod_set_value(priv->pdn_gpio, 1);
-
 		if (!IS_ERR(priv->mclk))
 			clk_disable_unprepare(priv->mclk);
 		break;
@@ -771,9 +760,6 @@ static int tas571x_i2c_probe(struct i2c_client *client,
 			return ret;
 	}
 
-	regcache_cache_only(priv->regmap, true);
-	gpiod_set_value(priv->pdn_gpio, 1);
-
 	return snd_soc_register_codec(&client->dev, &priv->codec_driver,
 				      &tas571x_dai, 1);
 }
-- 
2.9.3

Applied "ASoC: tas571x: extend the t_i2c time to comply with TAS5721" to the asoc tree

[Mark Brown]

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@jikos.cz>
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@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 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

Applied "ASoC: tas571x: move mixer volume controls from TAS5711 to TAS5717" to the asoc tree

[Mark Brown]

The patch

   ASoC: tas571x: move mixer volume controls from TAS5711 to TAS5717

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 960695670502afa153c2294e15ca790dbe086f4d Mon Sep 17 00:00:00 2001
From: Petr Kulhavy <brain@jikos.cz>
Date: Mon, 3 Oct 2016 16:40:50 +0200
Subject: [PATCH] ASoC: tas571x: move mixer volume controls from TAS5711 to
 TAS5717

Channel 1 and 2 Mixer Volume controls (registers 0x72/0x73 and 0x76/0x77)
were wrongly assigned to tas5711_controls in commit f252d2346022
("ASoC: tas571x: add input channel mixer for TAS5717/19")

Therefore move them to tas5717_controls.

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/codecs/tas571x.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index de65ecf534af..34e4ce6f23d8 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -401,16 +401,6 @@ static const struct snd_kcontrol_new tas5711_controls[] = {
 		   TAS571X_SOFT_MUTE_REG,
 		   TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 		   1, 1),
-
-	SOC_DOUBLE_R_RANGE("CH1 Mixer Volume",
-			   TAS5717_CH1_LEFT_CH_MIX_REG,
-			   TAS5717_CH1_RIGHT_CH_MIX_REG,
-			   16, 0, 0x80, 0),
-
-	SOC_DOUBLE_R_RANGE("CH2 Mixer Volume",
-			   TAS5717_CH2_LEFT_CH_MIX_REG,
-			   TAS5717_CH2_RIGHT_CH_MIX_REG,
-			   16, 0, 0x80, 0),
 };
 
 static const struct regmap_range tas571x_readonly_regs_range[] = {
@@ -488,6 +478,16 @@ static const struct snd_kcontrol_new tas5717_controls[] = {
 		   TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT,
 		   1, 1),
 
+	SOC_DOUBLE_R_RANGE("CH1 Mixer Volume",
+			   TAS5717_CH1_LEFT_CH_MIX_REG,
+			   TAS5717_CH1_RIGHT_CH_MIX_REG,
+			   16, 0, 0x80, 0),
+
+	SOC_DOUBLE_R_RANGE("CH2 Mixer Volume",
+			   TAS5717_CH2_LEFT_CH_MIX_REG,
+			   TAS5717_CH2_RIGHT_CH_MIX_REG,
+			   16, 0, 0x80, 0),
+
 	/*
 	 * The biquads are named according to the register names.
 	 * Please note that TI's TAS57xx Graphical Development Environment
-- 
2.9.3

Applied "ASoC: tas571x: wait 50ms after oscillator trim" to the asoc tree

[Mark Brown]

The patch

   ASoC: tas571x: wait 50ms after oscillator trim

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 5e549a0c18fc0321c18e7b6842cb7afc90aab396 Mon Sep 17 00:00:00 2001
From: Petr Kulhavy <brain@jikos.cz>
Date: Mon, 3 Oct 2016 16:40:49 +0200
Subject: [PATCH] ASoC: tas571x: wait 50ms after oscillator trim

Wait extra 50ms after writing the oscillator trim register in probe(), as
recommended by the TAS5721 and TAS5711 datasheets.

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 sound/soc/codecs/tas571x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index df5e5cb33baa..de65ecf534af 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -754,6 +754,7 @@ static int tas571x_i2c_probe(struct i2c_client *client,
 	if (ret)
 		return ret;
 
+	usleep_range(50000, 60000);
 
 	memcpy(&priv->codec_driver, &tas571x_codec, sizeof(priv->codec_driver));
 	priv->codec_driver.component_driver.controls = priv->chip->controls;
-- 
2.9.3