ASoC: wm8728: 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, 2 insertions, 32 deletions

diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index 38ff826f589a..55c7fb4fc786 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -212,40 +212,10 @@ static struct snd_soc_dai_driver wm8728_dai = {
         .ops = &wm8728_dai_ops,
 };
 
-static int wm8728_suspend(struct snd_soc_codec *codec)
-{
-        wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
-
-        return 0;
-}
-
-static int wm8728_resume(struct snd_soc_codec *codec)
-{
-        wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
-        return 0;
-}
-
-static int wm8728_probe(struct snd_soc_codec *codec)
-{
-        /* power on device */
-        wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
-        return 0;
-}
-
-static int wm8728_remove(struct snd_soc_codec *codec)
-{
-        wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
-        return 0;
-}
-
 static struct snd_soc_codec_driver soc_codec_dev_wm8728 = {
-        .probe =        wm8728_probe,
-        .remove =       wm8728_remove,
-        .suspend =      wm8728_suspend,
-        .resume =       wm8728_resume,
         .set_bias_level = wm8728_set_bias_level,
+        .suspend_bias_off = true,
+
         .controls = wm8728_snd_controls,
         .num_controls = ARRAY_SIZE(wm8728_snd_controls),
         .dapm_widgets = wm8728_dapm_widgets,