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ASoC: ak4642: Implement suspend callback 

Add the suspend callback to accompany the existing resume operation.
With the suspend/resume callbacks the regmap (regcache) state handling can
follow the recommended sequence.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2016-05-31 13:34:59 +03:00 committed by Mark Brown
parent 1a695a905c
commit a2ebd58627
1 changed files with 11 additions and 2 deletions
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13
sound/soc/codecs/ak4642.c
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@ -523,15 +523,23 @@ static struct snd_soc_dai_driver ak4642_dai = {
.symmetric_rates = 1,
};
static int ak4642_suspend(struct snd_soc_codec *codec)
{
struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
regcache_cache_only(regmap, true);
regcache_mark_dirty(regmap);
return 0;
}
static int ak4642_resume(struct snd_soc_codec *codec)
{
struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
regcache_mark_dirty(regmap);
regcache_cache_only(regmap, false);
regcache_sync(regmap);
return 0;
}
static int ak4642_probe(struct snd_soc_codec *codec)
{
struct ak4642_priv *priv = snd_soc_codec_get_drvdata(codec);
@ -544,6 +552,7 @@ static int ak4642_probe(struct snd_soc_codec *codec)
static struct snd_soc_codec_driver soc_codec_dev_ak4642 = {
.probe = ak4642_probe,
.suspend = ak4642_suspend,
.resume = ak4642_resume,
.set_bias_level = ak4642_set_bias_level,
.controls = ak4642_snd_controls,