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@xxxxxxxxxxxxxxxxxx>
Acked-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
> ---
> 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
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