ASoC: wm8711: Convert to snd_soc_cache_sync

Convert to snd_soc_cache_sync for sync reg_cache with the hardware.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 12 deletions

diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c
index 7475428d5588..8d0347cf0e9a 100644
--- a/sound/soc/codecs/wm8711.c
+++ b/sound/soc/codecs/wm8711.c
@@ -287,7 +287,6 @@ static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai,
         return 0;
 }
 
-
 static int wm8711_set_bias_level(struct snd_soc_codec *codec,
         enum snd_soc_bias_level level)
 {
@@ -300,6 +299,9 @@ static int wm8711_set_bias_level(struct snd_soc_codec *codec,
         case SND_SOC_BIAS_PREPARE:
                 break;
         case SND_SOC_BIAS_STANDBY:
+                if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
+                        snd_soc_cache_sync(codec);
+
                 snd_soc_write(codec, WM8711_PWR, reg | 0x0040);
                 break;
         case SND_SOC_BIAS_OFF:
@@ -346,18 +348,7 @@ static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state)
 
 static int wm8711_resume(struct snd_soc_codec *codec)
 {
-        int i;
-        u8 data[2];
-        u16 *cache = codec->reg_cache;
-
-        /* Sync reg_cache with the hardware */
-        for (i = 0; i < ARRAY_SIZE(wm8711_reg); i++) {
-                data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
-                data[1] = cache[i] & 0x00ff;
-                codec->hw_write(codec->control_data, data, 2);
-        }
         wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
         return 0;
 }