ASoC: wm8753: 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.

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>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 1 insertions, 18 deletions

diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 176fcb1530c3..c50a5959345f 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -1447,19 +1447,12 @@ static struct snd_soc_dai_driver wm8753_dai[] = {
 },
 };
 
-static int wm8753_suspend(struct snd_soc_codec *codec)
-{
-        wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
-        return 0;
-}
-
 static int wm8753_resume(struct snd_soc_codec *codec)
 {
         struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
 
         regcache_sync(wm8753->regmap);
 
-        wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
         return 0;
 }
 
@@ -1476,7 +1469,6 @@ static int wm8753_probe(struct snd_soc_codec *codec)
                 return ret;
         }
 
-        wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
         wm8753->dai_func = 0;
 
         /* set the update bits */
@@ -1494,20 +1486,11 @@ static int wm8753_probe(struct snd_soc_codec *codec)
         return 0;
 }
 
-/* power down chip */
-static int wm8753_remove(struct snd_soc_codec *codec)
-{
-        wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
-
-        return 0;
-}
-
 static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
         .probe =        wm8753_probe,
-        .remove =       wm8753_remove,
-        .suspend =      wm8753_suspend,
         .resume =       wm8753_resume,
         .set_bias_level = wm8753_set_bias_level,
+        .suspend_bias_off = true,
 
         .controls = wm8753_snd_controls,
         .num_controls = ARRAY_SIZE(wm8753_snd_controls),