ASoC: wm8962: Update register CLASS_D_CONTROL_1 to be non-volatile

[pandora-kernel.git] / sound / soc / codecs / wm8962.c

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 5522d25..ecd26dd 100644 (file)
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -154,6 +154,7 @@ static struct reg_default wm8962_reg[] = {
        { 40, 0x0000 },   /* R40    - SPKOUTL volume */
        { 41, 0x0000 },   /* R41    - SPKOUTR volume */
 
+       { 49, 0x0010 },   /* R49    - Class D Control 1 */
        { 51, 0x0003 },   /* R51    - Class D Control 2 */
 
        { 56, 0x0506 },   /* R56    - Clocking 4 */
@@ -795,7 +796,6 @@ static bool wm8962_volatile_register(struct device *dev, unsigned int reg)
        case WM8962_ALC2:
        case WM8962_THERMAL_SHUTDOWN_STATUS:
        case WM8962_ADDITIONAL_CONTROL_4:
-       case WM8962_CLASS_D_CONTROL_1:
        case WM8962_DC_SERVO_6:
        case WM8962_INTERRUPT_STATUS_1:
        case WM8962_INTERRUPT_STATUS_2:
@@ -2929,13 +2929,22 @@ static int wm8962_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
 static int wm8962_mute(struct snd_soc_dai *dai, int mute)
 {
        struct snd_soc_codec *codec = dai->codec;
-       int val;
+       int val, ret;
 
        if (mute)
-               val = WM8962_DAC_MUTE;
+               val = WM8962_DAC_MUTE | WM8962_DAC_MUTE_ALT;
        else
                val = 0;
 
+       /**
+        * The DAC mute bit is mirrored in two registers, update both to keep
+        * the register cache consistent.
+        */
+       ret = snd_soc_update_bits(codec, WM8962_CLASS_D_CONTROL_1,
+                                 WM8962_DAC_MUTE_ALT, val);
+       if (ret < 0)
+               return ret;
+
        return snd_soc_update_bits(codec, WM8962_ADC_DAC_CONTROL_1,
                                   WM8962_DAC_MUTE, val);
 }