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ASoC: sgtl5000: Cleanup bias level transitions

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Set the CODEC driver's suspend_bias_off flag rather than manually going to
SND_SOC_BIAS_OFF in suspend and SND_SOC_BIAS_STANDBY in resume. This makes
the code a bit shorter and cleaner.

Since the ASoC core now takes care of setting the bias level to
SND_SOC_BIAS_OFF when removing the CODEC there is no need to do it manually
anymore either.

The manual transition to SND_SOC_BIAS_STANDBY at the end of CODEC probe()
can also be removed as the core will automatically do this after the CODEC
has been probed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2014-09-06 14:29:35 +02:00 committed by Mark Brown
parent 35199a7c11
commit e649057a41
1 changed files with 1 additions and 29 deletions
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30
sound/soc/codecs/sgtl5000.c
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@ -1073,26 +1073,6 @@ static bool sgtl5000_readable(struct device *dev, unsigned int reg)
}
}
#ifdef CONFIG_SUSPEND
static int sgtl5000_suspend(struct snd_soc_codec *codec)
{
sgtl5000_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static int sgtl5000_resume(struct snd_soc_codec *codec)
{
/* Bring the codec back up to standby to enable regulators */
sgtl5000_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0;
}
#else
#define sgtl5000_suspend NULL
#define sgtl5000_resume NULL
#endif /* CONFIG_SUSPEND */
/*
* sgtl5000 has 3 internal power supplies:
* 1. VAG, normally set to vdda/2
@ -1352,11 +1332,6 @@ static int sgtl5000_probe(struct snd_soc_codec *codec)
*/
snd_soc_write(codec, SGTL5000_DAP_CTRL, 0);
/* leading to standby state */
ret = sgtl5000_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
if (ret)
goto err;
return 0;
err:
@ -1373,8 +1348,6 @@ static int sgtl5000_remove(struct snd_soc_codec *codec)
{
struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec);
sgtl5000_set_bias_level(codec, SND_SOC_BIAS_OFF);
regulator_bulk_disable(ARRAY_SIZE(sgtl5000->supplies),
sgtl5000->supplies);
regulator_bulk_free(ARRAY_SIZE(sgtl5000->supplies),
@ -1387,9 +1360,8 @@ static int sgtl5000_remove(struct snd_soc_codec *codec)
static struct snd_soc_codec_driver sgtl5000_driver = {
.probe = sgtl5000_probe,
.remove = sgtl5000_remove,
.suspend = sgtl5000_suspend,
.resume = sgtl5000_resume,
.set_bias_level = sgtl5000_set_bias_level,
.suspend_bias_off = true,
.controls = sgtl5000_snd_controls,
.num_controls = ARRAY_SIZE(sgtl5000_snd_controls),
.dapm_widgets = sgtl5000_dapm_widgets,