ASoC: wm8990: 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.

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, 22 deletions

diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 03e43e3f395e..8a584229310a 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -1271,18 +1271,6 @@ static struct snd_soc_dai_driver wm8990_dai = {
         .ops = &wm8990_dai_ops,
 };
 
-static int wm8990_suspend(struct snd_soc_codec *codec)
-{
-        wm8990_set_bias_level(codec, SND_SOC_BIAS_OFF);
-        return 0;
-}
-
-static int wm8990_resume(struct snd_soc_codec *codec)
-{
-        wm8990_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-        return 0;
-}
-
 /*
  * initialise the WM8990 driver
  * register the mixer and dsp interfaces with the kernel
@@ -1309,19 +1297,11 @@ static int wm8990_probe(struct snd_soc_codec *codec)
         return 0;
 }
 
-/* power down chip */
-static int wm8990_remove(struct snd_soc_codec *codec)
-{
-        wm8990_set_bias_level(codec, SND_SOC_BIAS_OFF);
-        return 0;
-}
-
 static struct snd_soc_codec_driver soc_codec_dev_wm8990 = {
         .probe =        wm8990_probe,
-        .remove =       wm8990_remove,
-        .suspend =      wm8990_suspend,
-        .resume =       wm8990_resume,
         .set_bias_level = wm8990_set_bias_level,
+        .suspend_bias_off = true,
+
         .controls =     wm8990_snd_controls,
         .num_controls = ARRAY_SIZE(wm8990_snd_controls),
         .dapm_widgets = wm8990_dapm_widgets,