ASoC: wm8731: 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>

diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index f76b6fc6766a1f6e8e855801823ffb7c2c8221f0..7e5ec03f6f8dd579d1bd43413fd1d007a1989bcb 100644 (file)
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -427,9 +427,7 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec,
                                 enum snd_soc_bias_level level)
 {
        struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec);
-       int i, ret;
-       u8 data[2];
-       u16 *cache = codec->reg_cache;
+       int ret;
        u16 reg;
 
        switch (level) {
@@ -444,16 +442,7 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec,
                        if (ret != 0)
                                return ret;
 
-                       /* Sync reg_cache with the hardware */
-                       for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) {
-                               if (cache[i] == wm8731_reg[i])
-                                       continue;
-
-                               data[0] = (i << 1) | ((cache[i] >> 8)
-                                                     & 0x0001);
-                               data[1] = cache[i] & 0x00ff;
-                               codec->hw_write(codec->control_data, data, 2);
-                       }
+                       snd_soc_cache_sync(codec);
                }
 
                /* Clear PWROFF, gate CLKOUT, everything else as-is */