ASoC: wm8988: 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/wm8988.c b/sound/soc/codecs/wm8988.c
index 1c6f8bfbf94a75ed494f485ef36cb4c199a8434f..2e9eba717d1a9adb1f15fe345276699c67c26fca 100644 (file)
--- a/sound/soc/codecs/wm8988.c
+++ b/sound/soc/codecs/wm8988.c
@@ -55,7 +55,6 @@ struct wm8988_priv {
        struct snd_pcm_hw_constraint_list *sysclk_constraints;
 };
 
-
 #define wm8988_reset(c)        snd_soc_write(c, WM8988_RESET, 0)
 
 /*
@@ -676,6 +675,8 @@ static int wm8988_set_bias_level(struct snd_soc_codec *codec,
 
        case SND_SOC_BIAS_STANDBY:
                if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+                       snd_soc_cache_sync(codec);
+
                        /* VREF, VMID=2x5k */
                        snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x1c1);
 
@@ -736,21 +737,7 @@ static int wm8988_suspend(struct snd_soc_codec *codec, pm_message_t state)
 
 static int wm8988_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 < WM8988_NUM_REG; i++) {
-               if (i == WM8988_RESET)
-                       continue;
-               data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
-               data[1] = cache[i] & 0x00ff;
-               codec->hw_write(codec->control_data, data, 2);
-       }
-
        wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
        return 0;
 }