ASoC: twl6040: 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>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 0f6067f..5ff2b1e 100644 (file)
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -1095,25 +1095,6 @@ static struct snd_soc_dai_driver twl6040_dai[] = {
 },
 };
 
-#ifdef CONFIG_PM
-static int twl6040_suspend(struct snd_soc_codec *codec)
-{
-       twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
-
-       return 0;
-}
-
-static int twl6040_resume(struct snd_soc_codec *codec)
-{
-       twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
-       return 0;
-}
-#else
-#define twl6040_suspend NULL
-#define twl6040_resume NULL
-#endif
-
 static int twl6040_probe(struct snd_soc_codec *codec)
 {
        struct twl6040_data *priv;
@@ -1160,7 +1141,6 @@ static int twl6040_remove(struct snd_soc_codec *codec)
        struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
 
        free_irq(priv->plug_irq, codec);
-       twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
        return 0;
 }
@@ -1168,11 +1148,10 @@ static int twl6040_remove(struct snd_soc_codec *codec)
 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
        .probe = twl6040_probe,
        .remove = twl6040_remove,
-       .suspend = twl6040_suspend,
-       .resume = twl6040_resume,
        .read = twl6040_read,
        .write = twl6040_write,
        .set_bias_level = twl6040_set_bias_level,
+       .suspend_bias_off = true,
        .ignore_pmdown_time = true,
 
        .controls = twl6040_snd_controls,