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| author | Daniel Mack <zonque@gmail.com> | 2013-10-01 14:48:26 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-10-03 14:14:38 +0100 |
| commit | 25c84cc1ace56421fa9a676a387a1919e7bc4e62 (patch) | |
| tree | c509e0ebdc1782c0c32dbd28eea95c67ea951711 /sound/soc/codecs/tas5086.c | |
| parent | d5fd3ccc2d9df493ad6f1eaf7aba72f690e98937 (diff) | |
| download | linux-stable-25c84cc1ace56421fa9a676a387a1919e7bc4e62.tar.gz linux-stable-25c84cc1ace56421fa9a676a387a1919e7bc4e62.tar.bz2 linux-stable-25c84cc1ace56421fa9a676a387a1919e7bc4e62.zip | |
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: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/tas5086.c')
| -rw-r--r-- | sound/soc/codecs/tas5086.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c index 3a88c68145c2..2996d2ea026b 100644 --- a/sound/soc/codecs/tas5086.c +++ b/sound/soc/codecs/tas5086.c @@ -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), |