ASoC: wm8988: 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. Also remove the regcache_mark_dirty()
from the suspend handler since it is already called by the ASoC core.

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>

diff --git a/sound/soc/codecs/wm8988.c b/sound/soc/codecs/wm8988.c
index a5130d9..e418199 100644 (file)
--- a/sound/soc/codecs/wm8988.c
+++ b/sound/soc/codecs/wm8988.c
@@ -793,21 +793,6 @@ static struct snd_soc_dai_driver wm8988_dai = {
        .symmetric_rates = 1,
 };
 
-static int wm8988_suspend(struct snd_soc_codec *codec)
-{
-       struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec);
-
-       wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF);
-       regcache_mark_dirty(wm8988->regmap);
-       return 0;
-}
-
-static int wm8988_resume(struct snd_soc_codec *codec)
-{
-       wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-       return 0;
-}
-
 static int wm8988_probe(struct snd_soc_codec *codec)
 {
        int ret = 0;
@@ -825,23 +810,13 @@ static int wm8988_probe(struct snd_soc_codec *codec)
        snd_soc_update_bits(codec, WM8988_ROUT2V, 0x0100, 0x0100);
        snd_soc_update_bits(codec, WM8988_RINVOL, 0x0100, 0x0100);
 
-       wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
-       return 0;
-}
-
-static int wm8988_remove(struct snd_soc_codec *codec)
-{
-       wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF);
        return 0;
 }
 
 static struct snd_soc_codec_driver soc_codec_dev_wm8988 = {
        .probe =        wm8988_probe,
-       .remove =       wm8988_remove,
-       .suspend =      wm8988_suspend,
-       .resume =       wm8988_resume,
        .set_bias_level = wm8988_set_bias_level,
+       .suspend_bias_off = true,
 
        .controls = wm8988_snd_controls,
        .num_controls = ARRAY_SIZE(wm8988_snd_controls),