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Commit 25c84cc1 authored by Daniel Mack's avatar Daniel Mack Committed by Mark Brown
Browse files

ASoC: tas5086: add suspend callback 



When going to suspend, shut down all channels and re-do the init
procedure at resume time.

Signed-off-by: default avatarDaniel Mack <zonque@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent d5fd3ccc

sound/soc/codecs/tas5086.c

+28 −2
Original line number Diff line number Diff line
@@ -762,14 +762,39 @@ static struct snd_soc_dai_driver tas5086_dai = { 
};



#ifdef CONFIG_PM

static int tas5086_soc_suspend(struct snd_soc_codec *codec)

{

	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);

	int ret;



	/* Shut down all channels */

	ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x60);

	if (ret < 0)

		return ret;



	return 0;

}



static int tas5086_soc_resume(struct snd_soc_codec *codec)

{

	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);

	int ret;



	/* Restore codec state */

	return regcache_sync(priv->regmap);

	tas5086_reset(priv);

	regcache_mark_dirty(priv->regmap);



	ret = tas5086_init(codec->dev, priv);

	if (ret < 0)

		return ret;



	ret = regcache_sync(priv->regmap);

	if (ret < 0)

		return ret;



	return 0;

}

#else

#define tas5086_soc_suspend	NULL

#define tas5086_soc_resume	NULL

#endif /* CONFIG_PM */
@@ -832,6 +857,7 @@ static int tas5086_remove(struct snd_soc_codec *codec) 
static struct snd_soc_codec_driver soc_codec_dev_tas5086 = {

	.probe			= tas5086_probe,

	.remove			= tas5086_remove,

	.suspend		= tas5086_soc_suspend,

	.resume			= tas5086_soc_resume,

	.controls		= tas5086_controls,

	.num_controls		= ARRAY_SIZE(tas5086_controls),