ASoC: adav80x: Cleanup manual bias level transitions

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. While we are at it also remove the
regcache_cache_only() calls from suspend/resume as there shouldn't be any IO
between suspend and resume.

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>

1 files changed, 2 insertions, 21 deletions

diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index c43b93fdf0df..ce3cdca9fc62 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -812,42 +812,23 @@ static int adav80x_probe(struct snd_soc_codec *codec)
         /* Disable DAC zero flag */
         regmap_write(adav80x->regmap, ADAV80X_DAC_CTRL3, 0x6);
 
-        return adav80x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-}
-
-static int adav80x_suspend(struct snd_soc_codec *codec)
-{
-        struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
-        int ret;
-
-        ret = adav80x_set_bias_level(codec, SND_SOC_BIAS_OFF);
-        regcache_cache_only(adav80x->regmap, true);
-
-        return ret;
+        return 0;
 }
 
 static int adav80x_resume(struct snd_soc_codec *codec)
 {
         struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 
-        regcache_cache_only(adav80x->regmap, false);
-        adav80x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
         regcache_sync(adav80x->regmap);
 
         return 0;
 }
 
-static int adav80x_remove(struct snd_soc_codec *codec)
-{
-        return adav80x_set_bias_level(codec, SND_SOC_BIAS_OFF);
-}
-
 static struct snd_soc_codec_driver adav80x_codec_driver = {
         .probe = adav80x_probe,
-        .remove = adav80x_remove,
-        .suspend = adav80x_suspend,
         .resume = adav80x_resume,
         .set_bias_level = adav80x_set_bias_level,
+        .suspend_bias_off = true,
 
         .set_pll = adav80x_set_pll,
         .set_sysclk = adav80x_set_sysclk,