ASoC: wm8960: 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>

sound/soc/codecs/wm8960.c

@@ -574,6 +574,8 @@ static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
 
 	case SND_SOC_BIAS_STANDBY:
 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+			snd_soc_cache_sync(codec);
+
 			/* Enable anti-pop features */
 			snd_soc_write(codec, WM8960_APOP1,
 				      WM8960_POBCTRL | WM8960_SOFT_ST |
@@ -676,6 +678,9 @@ static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
 					    WM8960_VREF | WM8960_VMID_MASK, 0);
 			break;
 
+		case SND_SOC_BIAS_OFF:
+			snd_soc_cache_sync(codec);
+			break;
 		default:
 			break;
 		}
@@ -901,16 +906,6 @@ static int wm8960_suspend(struct snd_soc_codec *codec, pm_message_t state)
 static int wm8960_resume(struct snd_soc_codec *codec)
 {
 	struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
-	int i;
-	u8 data[2];
-	u16 *cache = codec->reg_cache;
-
-	/* Sync reg_cache with the hardware */
-	for (i = 0; i < ARRAY_SIZE(wm8960_reg); i++) {
-		data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
-		data[1] = cache[i] & 0x00ff;
-		codec->hw_write(codec->control_data, data, 2);
-	}
 
 	wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 	return 0;