ASoC: codecs: max98088: Added digital mute function in DAI1 and DAI2

Added digital mute function in DAI1 and DAI2.
Signed-off-by: Jin Park <jinyoungp@nvidia.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/max98088.c

@@ -1566,6 +1566,36 @@ static int max98088_dai2_set_fmt(struct snd_soc_dai *codec_dai,
        return 0;
 }
 
+static int max98088_dai1_digital_mute(struct snd_soc_dai *codec_dai, int mute)
+{
+       struct snd_soc_codec *codec = codec_dai->codec;
+       int reg;
+
+       if (mute)
+               reg = M98088_DAI_MUTE;
+       else
+               reg = 0;
+
+       snd_soc_update_bits(codec, M98088_REG_2F_LVL_DAI1_PLAY,
+                           M98088_DAI_MUTE_MASK, reg);
+       return 0;
+}
+
+static int max98088_dai2_digital_mute(struct snd_soc_dai *codec_dai, int mute)
+{
+       struct snd_soc_codec *codec = codec_dai->codec;
+       int reg;
+
+       if (mute)
+               reg = M98088_DAI_MUTE;
+       else
+               reg = 0;
+
+       snd_soc_update_bits(codec, M98088_REG_31_LVL_DAI2_PLAY,
+                           M98088_DAI_MUTE_MASK, reg);
+       return 0;
+}
+
 static void max98088_sync_cache(struct snd_soc_codec *codec)
 {
        u16 *reg_cache = codec->reg_cache;
@@ -1627,12 +1657,14 @@ static struct snd_soc_dai_ops max98088_dai1_ops = {
        .set_sysclk = max98088_dai_set_sysclk,
        .set_fmt = max98088_dai1_set_fmt,
        .hw_params = max98088_dai1_hw_params,
+       .digital_mute = max98088_dai1_digital_mute,
 };
 
 static struct snd_soc_dai_ops max98088_dai2_ops = {
        .set_sysclk = max98088_dai_set_sysclk,
        .set_fmt = max98088_dai2_set_fmt,
        .hw_params = max98088_dai2_hw_params,
+       .digital_mute = max98088_dai2_digital_mute,
 };
 
 static struct snd_soc_dai_driver max98088_dai[] = {

sound/soc/codecs/max98088.h

@@ -133,6 +133,19 @@
        #define M98088_REC_LINEMODE             (1<<7)
        #define M98088_REC_LINEMODE_MASK        (1<<7)
 
+/* M98088_REG_2D_MIX_SPK_CNTL */
+       #define M98088_MIX_SPKR_GAIN_MASK       (3<<2)
+       #define M98088_MIX_SPKR_GAIN_SHIFT      2
+       #define M98088_MIX_SPKL_GAIN_MASK       (3<<0)
+       #define M98088_MIX_SPKL_GAIN_SHIFT      0
+
+/* M98088_REG_2F_LVL_DAI1_PLAY, M98088_REG_31_LVL_DAI2_PLAY */
+       #define M98088_DAI_MUTE                 (1<<7)
+       #define M98088_DAI_MUTE_MASK            (1<<7)
+       #define M98088_DAI_VOICE_GAIN_MASK      (3<<4)
+       #define M98088_DAI_ATTENUATION_MASK     (0xF<<0)
+       #define M98088_DAI_ATTENUATION_SHIFT    0
+
 /* M98088_REG_35_LVL_MIC1, M98088_REG_36_LVL_MIC2 */
        #define M98088_MICPRE_MASK              (3<<5)
        #define M98088_MICPRE_SHIFT             5