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ASoC: atmel-classd: sync regcache when resuming

Message ID 20170515083617.16742-1-quentin.schulz@free-electrons.com
State Accepted
Commit 61abce1312bf97eac62eef704260ce9a8f9b85f6
Headers show

Commit Message

Quentin Schulz May 15, 2017, 8:36 a.m. UTC
The PM functions used in this driver are the ones defined in
sounc/soc/soc-core.c.

When suspending (using snd_soc_suspend), the regcache is marked dirty
but is never synced on resume.

Sync regcache on resume of Atmel ClassD device.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>

---
 sound/soc/atmel/atmel-classd.c | 9 +++++++++
 1 file changed, 9 insertions(+)

-- 
2.11.0

Comments

Alexandre Belloni May 15, 2017, 9:46 a.m. UTC | #1
On 15/05/2017 at 10:36:17 +0200, Quentin Schulz wrote:
> The PM functions used in this driver are the ones defined in

> sounc/soc/soc-core.c.

> 

> When suspending (using snd_soc_suspend), the regcache is marked dirty

> but is never synced on resume.

> 

> Sync regcache on resume of Atmel ClassD device.

> 

> Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>


> ---

>  sound/soc/atmel/atmel-classd.c | 9 +++++++++

>  1 file changed, 9 insertions(+)

> 

> diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c

> index 7ae46c2647d4..b7ef8c59b49a 100644

> --- a/sound/soc/atmel/atmel-classd.c

> +++ b/sound/soc/atmel/atmel-classd.c

> @@ -301,6 +301,14 @@ static int atmel_classd_codec_probe(struct snd_soc_codec *codec)

>  	return 0;

>  }

>  

> +static int atmel_classd_codec_resume(struct snd_soc_codec *codec)

> +{

> +	struct snd_soc_card *card = snd_soc_codec_get_drvdata(codec);

> +	struct atmel_classd *dd = snd_soc_card_get_drvdata(card);

> +

> +	return regcache_sync(dd->regmap);

> +}

> +

>  static struct regmap *atmel_classd_codec_get_remap(struct device *dev)

>  {

>  	return dev_get_regmap(dev, NULL);

> @@ -308,6 +316,7 @@ static struct regmap *atmel_classd_codec_get_remap(struct device *dev)

>  

>  static struct snd_soc_codec_driver soc_codec_dev_classd = {

>  	.probe		= atmel_classd_codec_probe,

> +	.resume		= atmel_classd_codec_resume,

>  	.get_regmap	= atmel_classd_codec_get_remap,

>  	.component_driver = {

>  		.controls		= atmel_classd_snd_controls,

> -- 

> 2.11.0

> 


-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
diff mbox

Patch

diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c
index 7ae46c2647d4..b7ef8c59b49a 100644
--- a/sound/soc/atmel/atmel-classd.c
+++ b/sound/soc/atmel/atmel-classd.c
@@ -301,6 +301,14 @@  static int atmel_classd_codec_probe(struct snd_soc_codec *codec)
 	return 0;
 }
 
+static int atmel_classd_codec_resume(struct snd_soc_codec *codec)
+{
+	struct snd_soc_card *card = snd_soc_codec_get_drvdata(codec);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(card);
+
+	return regcache_sync(dd->regmap);
+}
+
 static struct regmap *atmel_classd_codec_get_remap(struct device *dev)
 {
 	return dev_get_regmap(dev, NULL);
@@ -308,6 +316,7 @@  static struct regmap *atmel_classd_codec_get_remap(struct device *dev)
 
 static struct snd_soc_codec_driver soc_codec_dev_classd = {
 	.probe		= atmel_classd_codec_probe,
+	.resume		= atmel_classd_codec_resume,
 	.get_regmap	= atmel_classd_codec_get_remap,
 	.component_driver = {
 		.controls		= atmel_classd_snd_controls,