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ASoC: adau17x1: Handling of DSP_RUN register during fw setup

PATCH In review Robert Rosengren 3 participants 7 messages Apr 9, 2018 – Apr 16, 2018

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Sound ASoC Analog devices inc ASoC codec drivers
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Robert Rosengren

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#0 lore raw

PATCH v2 1/2 ASoC: adau17x1: Handling of DSP_RUN register during fw setup

From: Danny Smith <[email protected]>

DSP_RUN needs to be disabled during firmware write otherwise we can end up with undefined behavior if writing to a dsp which is already running firmware.

Signed-off-by Danny Smith <[email protected]>
Signed-off-by Robert Rosengren <[email protected]>
---
 sound/soc/codecs/adau17x1.c | 26 ++++++++++++++++++++------
 sound/soc/codecs/adau17x1.h |  3 ++-
 2 files changed, 22 insertions(+), 7 deletions(-)
sound/soc/codecs/adau17x1.c +20 -6
index 80c2a06285bb..12bf24c26818 100644
@@ -502,7 +502,7 @@ static int adau17x1_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	if (adau->sigmadsp) {
-		ret = adau17x1_setup_firmware(adau, params_rate(params));
+		ret = adau17x1_setup_firmware(component, params_rate(params));
 		if (ret < 0)
 			return ret;
 	}

@@ -835,26 +835,40 @@ bool adau17x1_volatile_register(struct device *dev, unsigned int reg)
 }
 EXPORT_SYMBOL_GPL(adau17x1_volatile_register);
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate)
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate)
 {
 	int ret;
-	int dspsr;
+	int dspsr, dsp_run;
+	struct adau *adau = snd_soc_component_get_drvdata(component);
+	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+
+	snd_soc_dapm_mutex_lock(dapm);
 
 	ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
 	if (ret)
-		return ret;
+		goto err;
+
+	ret = regmap_read(adau->regmap, ADAU17X1_DSP_RUN, &dsp_run);
+	if (ret)
+		goto err;
 
 	regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 1);
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, 0xf);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, 0);
 
 	ret = sigmadsp_setup(adau->sigmadsp, rate);
 	if (ret) {
 		regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 0);
-		return ret;
+		goto err;
 	}
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, dspsr);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, dsp_run);
 
-	return 0;
+err:
+	snd_soc_dapm_mutex_unlock(dapm);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(adau17x1_setup_firmware);
sound/soc/codecs/adau17x1.h +2 -1
index a7b1cb770814..e6fe87beec07 100644
@@ -68,7 +68,8 @@ int adau17x1_resume(struct snd_soc_component *component);
 
 extern const struct snd_soc_dai_ops adau17x1_dai_ops;
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate);
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate);
 bool adau17x1_has_dsp(struct adau *adau);
 
 #define ADAU17X1_CLOCK_CONTROL			0x4000
Signature · 1 line
2.11.0
author
#1 lore raw

PATCH v2 2/2 ASoC: adau17x1: Do not reload dsp-fw if samplerate has not changed

From: Danny Smith <[email protected]>

Reloading fw causes an audiable popping sound, we can avoid this by not reloading if the samplerate is the same as before.

Signed-off-by Danny Smith <[email protected]>
Signed-off-by Robert Rosengren <[email protected]>
---
 sound/soc/codecs/adau17x1.c | 9 +++++++++
 1 file changed, 9 insertions(+)
sound/soc/codecs/adau17x1.c +9 -0
index 12bf24c26818..ae41edd1c406 100644
@@ -843,6 +843,15 @@ int adau17x1_setup_firmware(struct snd_soc_component *component,
 	struct adau *adau = snd_soc_component_get_drvdata(component);
 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 
+	/* Check if sample rate is the same as before. If it is there is no
+	 * point in performing the below steps as the call to
+	 * sigmadsp_setup(...) will return directly when it finds the sample
+	 * rate to be the same as before. By checking this we can prevent an
+	 * audiable popping noise which occours when toggling DSP_RUN.
+	 */
+	if (adau->sigmadsp->current_samplerate == rate)
+		return 0;
+
 	snd_soc_dapm_mutex_lock(dapm);
 
 	ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
Signature · 1 line
2.11.0
maintainer Acked-by on v2 2/2
#2 lore raw

Re: [PATCH v2 2/2] ASoC: adau17x1: Do not reload dsp-fw if samplerate has not changed

Quoted 7 lines · Robert Rosengren

From: Danny Smith <[email protected]>

Reloading fw causes an audiable popping sound, we can avoid this by not reloading if the samplerate is the same as before.

Signed-off-by Danny Smith <[email protected]>
Signed-off-by Robert Rosengren <[email protected]>
Acked-by Lars-Peter Clausen <[email protected]>
Quoted 25 lines
---
 sound/soc/codecs/adau17x1.c | 9 +++++++++
 1 file changed, 9 insertions(+)
sound/soc/codecs/adau17x1.c +9 -0
index 12bf24c26818..ae41edd1c406 100644
@@ -843,6 +843,15 @@ int adau17x1_setup_firmware(struct snd_soc_component *component,
 	struct adau *adau = snd_soc_component_get_drvdata(component);
 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 
+	/* Check if sample rate is the same as before. If it is there is no
+	 * point in performing the below steps as the call to
+	 * sigmadsp_setup(...) will return directly when it finds the sample
+	 * rate to be the same as before. By checking this we can prevent an
+	 * audiable popping noise which occours when toggling DSP_RUN.
+	 */
+	if (adau->sigmadsp->current_samplerate == rate)
+		return 0;
+
 	snd_soc_dapm_mutex_lock(dapm);
 
 	ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
maintainer
#3 lore raw

Applied "ASoC: adau17x1: Do not reload dsp-fw if samplerate has not changed" to the asoc tree

In reply to Robert Rosengren

The patch

ASoC: adau17x1: Do not reload dsp-fw if samplerate has not changed

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

Quoted 1 line

From 728815e3feec751769b3a9fe406fbc529de7cdc0 Mon Sep 17 00:00:00 2001

From: Danny Smith <[email protected]>
Date: Mon, 9 Apr 2018 15:13:36 +0200
Subject: [PATCH] ASoC: adau17x1: Do not reload dsp-fw if samplerate has not
changed

Reloading fw causes an audiable popping sound, we can avoid this by not reloading if the samplerate is the same as before.

Signed-off-by Danny Smith <[email protected]>
Signed-off-by Robert Rosengren <[email protected]>
Acked-by Lars-Peter Clausen <[email protected]>
Signed-off-by Mark Brown <[email protected]>
---
 sound/soc/codecs/adau17x1.c | 9 +++++++++
 1 file changed, 9 insertions(+)
sound/soc/codecs/adau17x1.c +9 -0
index 12bf24c26818..ae41edd1c406 100644
@@ -843,6 +843,15 @@ int adau17x1_setup_firmware(struct snd_soc_component *component,
 	struct adau *adau = snd_soc_component_get_drvdata(component);
 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 
+	/* Check if sample rate is the same as before. If it is there is no
+	 * point in performing the below steps as the call to
+	 * sigmadsp_setup(...) will return directly when it finds the sample
+	 * rate to be the same as before. By checking this we can prevent an
+	 * audiable popping noise which occours when toggling DSP_RUN.
+	 */
+	if (adau->sigmadsp->current_samplerate == rate)
+		return 0;
+
 	snd_soc_dapm_mutex_lock(dapm);
 
 	ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
Signature · 1 line
2.17.0
maintainer Acked-by on v2 1/2
#4 lore raw
In reply to Robert Rosengren
Quoted 8 lines · Robert Rosengren

From: Danny Smith <[email protected]>

DSP_RUN needs to be disabled during firmware write otherwise we can end up with undefined behavior if writing to a dsp which is already running firmware.

Signed-off-by Danny Smith <[email protected]>
Signed-off-by Robert Rosengren <[email protected]>
Acked-by Lars-Peter Clausen <[email protected]>
Quoted 79 lines
---
 sound/soc/codecs/adau17x1.c | 26 ++++++++++++++++++++------
 sound/soc/codecs/adau17x1.h |  3 ++-
 2 files changed, 22 insertions(+), 7 deletions(-)
sound/soc/codecs/adau17x1.c +20 -6
index 80c2a06285bb..12bf24c26818 100644
@@ -502,7 +502,7 @@ static int adau17x1_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	if (adau->sigmadsp) {
-		ret = adau17x1_setup_firmware(adau, params_rate(params));
+		ret = adau17x1_setup_firmware(component, params_rate(params));
 		if (ret < 0)
 			return ret;
 	}

@@ -835,26 +835,40 @@ bool adau17x1_volatile_register(struct device *dev, unsigned int reg)
 }
 EXPORT_SYMBOL_GPL(adau17x1_volatile_register);
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate)
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate)
 {
 	int ret;
-	int dspsr;
+	int dspsr, dsp_run;
+	struct adau *adau = snd_soc_component_get_drvdata(component);
+	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+
+	snd_soc_dapm_mutex_lock(dapm);
 
 	ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
 	if (ret)
-		return ret;
+		goto err;
+
+	ret = regmap_read(adau->regmap, ADAU17X1_DSP_RUN, &dsp_run);
+	if (ret)
+		goto err;
 
 	regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 1);
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, 0xf);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, 0);
 
 	ret = sigmadsp_setup(adau->sigmadsp, rate);
 	if (ret) {
 		regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 0);
-		return ret;
+		goto err;
 	}
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, dspsr);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, dsp_run);
 
-	return 0;
+err:
+	snd_soc_dapm_mutex_unlock(dapm);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(adau17x1_setup_firmware);
sound/soc/codecs/adau17x1.h +2 -1
index a7b1cb770814..e6fe87beec07 100644
@@ -68,7 +68,8 @@ int adau17x1_resume(struct snd_soc_component *component);
 
 extern const struct snd_soc_dai_ops adau17x1_dai_ops;
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate);
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate);
 bool adau17x1_has_dsp(struct adau *adau);
 
 #define ADAU17X1_CLOCK_CONTROL			0x4000
maintainer
#5 lore raw

Applied "ASoC: adau17x1: Handling of DSP_RUN register during fw setup" to the asoc tree

In reply to Robert Rosengren

The patch

ASoC: adau17x1: Handling of DSP_RUN register during fw setup

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

Quoted 1 line

From d0f8b9c5a350ca6fa842b52bfb88b77b34ee485b Mon Sep 17 00:00:00 2001

From: Danny Smith <[email protected]>
Date: Mon, 9 Apr 2018 15:13:35 +0200
Subject: [PATCH] ASoC: adau17x1: Handling of DSP_RUN register during fw setup

DSP_RUN needs to be disabled during firmware write otherwise we can end up with undefined behavior if writing to a dsp which is already running firmware.

Signed-off-by Danny Smith <[email protected]>
Signed-off-by Robert Rosengren <[email protected]>
Acked-by Lars-Peter Clausen <[email protected]>
Signed-off-by Mark Brown <[email protected]>
---
 sound/soc/codecs/adau17x1.c | 26 ++++++++++++++++++++------
 sound/soc/codecs/adau17x1.h |  3 ++-
 2 files changed, 22 insertions(+), 7 deletions(-)
sound/soc/codecs/adau17x1.c +20 -6
index 80c2a06285bb..12bf24c26818 100644
@@ -502,7 +502,7 @@ static int adau17x1_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	if (adau->sigmadsp) {
-		ret = adau17x1_setup_firmware(adau, params_rate(params));
+		ret = adau17x1_setup_firmware(component, params_rate(params));
 		if (ret < 0)
 			return ret;
 	}

@@ -835,26 +835,40 @@ bool adau17x1_volatile_register(struct device *dev, unsigned int reg)
 }
 EXPORT_SYMBOL_GPL(adau17x1_volatile_register);
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate)
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate)
 {
 	int ret;
-	int dspsr;
+	int dspsr, dsp_run;
+	struct adau *adau = snd_soc_component_get_drvdata(component);
+	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+
+	snd_soc_dapm_mutex_lock(dapm);
 
 	ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
 	if (ret)
-		return ret;
+		goto err;
+
+	ret = regmap_read(adau->regmap, ADAU17X1_DSP_RUN, &dsp_run);
+	if (ret)
+		goto err;
 
 	regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 1);
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, 0xf);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, 0);
 
 	ret = sigmadsp_setup(adau->sigmadsp, rate);
 	if (ret) {
 		regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 0);
-		return ret;
+		goto err;
 	}
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, dspsr);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, dsp_run);
 
-	return 0;
+err:
+	snd_soc_dapm_mutex_unlock(dapm);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(adau17x1_setup_firmware);
sound/soc/codecs/adau17x1.h +2 -1
index a7b1cb770814..e6fe87beec07 100644
@@ -68,7 +68,8 @@ int adau17x1_resume(struct snd_soc_component *component);
 
 extern const struct snd_soc_dai_ops adau17x1_dai_ops;
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate);
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate);
 bool adau17x1_has_dsp(struct adau *adau);
 
 #define ADAU17X1_CLOCK_CONTROL			0x4000
Signature · 1 line
2.17.0
maintainer
#6 lore raw

Applied "ASoC: adau17x1: Handling of DSP_RUN register during fw setup" to the asoc tree

In reply to Robert Rosengren

The patch

ASoC: adau17x1: Handling of DSP_RUN register during fw setup

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

Quoted 1 line

From d0f8b9c5a350ca6fa842b52bfb88b77b34ee485b Mon Sep 17 00:00:00 2001

From: Danny Smith <[email protected]>
Date: Mon, 9 Apr 2018 15:13:35 +0200
Subject: [PATCH] ASoC: adau17x1: Handling of DSP_RUN register during fw setup

DSP_RUN needs to be disabled during firmware write otherwise we can end up with undefined behavior if writing to a dsp which is already running firmware.

Signed-off-by Danny Smith <[email protected]>
Signed-off-by Robert Rosengren <[email protected]>
Acked-by Lars-Peter Clausen <[email protected]>
Signed-off-by Mark Brown <[email protected]>
---
 sound/soc/codecs/adau17x1.c | 26 ++++++++++++++++++++------
 sound/soc/codecs/adau17x1.h |  3 ++-
 2 files changed, 22 insertions(+), 7 deletions(-)
sound/soc/codecs/adau17x1.c +20 -6
index 80c2a06285bb..12bf24c26818 100644
@@ -502,7 +502,7 @@ static int adau17x1_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	if (adau->sigmadsp) {
-		ret = adau17x1_setup_firmware(adau, params_rate(params));
+		ret = adau17x1_setup_firmware(component, params_rate(params));
 		if (ret < 0)
 			return ret;
 	}

@@ -835,26 +835,40 @@ bool adau17x1_volatile_register(struct device *dev, unsigned int reg)
 }
 EXPORT_SYMBOL_GPL(adau17x1_volatile_register);
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate)
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate)
 {
 	int ret;
-	int dspsr;
+	int dspsr, dsp_run;
+	struct adau *adau = snd_soc_component_get_drvdata(component);
+	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+
+	snd_soc_dapm_mutex_lock(dapm);
 
 	ret = regmap_read(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, &dspsr);
 	if (ret)
-		return ret;
+		goto err;
+
+	ret = regmap_read(adau->regmap, ADAU17X1_DSP_RUN, &dsp_run);
+	if (ret)
+		goto err;
 
 	regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 1);
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, 0xf);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, 0);
 
 	ret = sigmadsp_setup(adau->sigmadsp, rate);
 	if (ret) {
 		regmap_write(adau->regmap, ADAU17X1_DSP_ENABLE, 0);
-		return ret;
+		goto err;
 	}
 	regmap_write(adau->regmap, ADAU17X1_DSP_SAMPLING_RATE, dspsr);
+	regmap_write(adau->regmap, ADAU17X1_DSP_RUN, dsp_run);
 
-	return 0;
+err:
+	snd_soc_dapm_mutex_unlock(dapm);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(adau17x1_setup_firmware);
sound/soc/codecs/adau17x1.h +2 -1
index a7b1cb770814..e6fe87beec07 100644
@@ -68,7 +68,8 @@ int adau17x1_resume(struct snd_soc_component *component);
 
 extern const struct snd_soc_dai_ops adau17x1_dai_ops;
 
-int adau17x1_setup_firmware(struct adau *adau, unsigned int rate);
+int adau17x1_setup_firmware(struct snd_soc_component *component,
+	unsigned int rate);
 bool adau17x1_has_dsp(struct adau *adau);
 
 #define ADAU17X1_CLOCK_CONTROL			0x4000
Signature · 1 line
2.17.0