MLK-17979: ASoC: rpmsg_wm8960: add mixer control for ADC input

The microphone only connect to left input, when record stereo channel
data, the right channel is mute. Add 'ADC Data Output Select' mixer
control that user can select the wanted configure. The default setting
is 'Left Data = Left ADC;  Right Data = Left ADC'.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
(cherry picked from commit cce63c3e843b7d705df6e36adffc0226bfe40e42)

diff --git a/sound/soc/codecs/rpmsg_wm8960.c b/sound/soc/codecs/rpmsg_wm8960.c
index 37a716d..f473a2c 100644 (file)
--- a/sound/soc/codecs/rpmsg_wm8960.c
+++ b/sound/soc/codecs/rpmsg_wm8960.c
@@ -24,13 +24,48 @@
 #define WM8960_RINVOL          0x1
 #define WM8960_LOUT1           0x2
 #define WM8960_ROUT1           0x3
+#define WM8960_DACCTL1         0x5
+#define WM8960_DACCTL2         0x6
 #define WM8960_LDAC            0xa
 #define WM8960_RDAC            0xb
+
+#define WM8960_3D              0x10
+#define WM8960_ALC1            0x11
+#define WM8960_ALC2            0x12
+#define WM8960_ALC3            0x13
 #define WM8960_LADC            0x15
 #define WM8960_RADC            0x16
+#define WM8960_ADDCTL1         0x17
+#define WM8960_ADDCTL2         0x18
 #define WM8960_LOUT2           0x28
 #define WM8960_ROUT2           0x29
 
+/* enumerated controls */
+static const char * const wm8960_polarity[] = {"No Inversion", "Left Inverted",
+       "Right Inverted", "Stereo Inversion"};
+static const char * const wm8960_3d_upper_cutoff[] = {"High", "Low"};
+static const char * const wm8960_3d_lower_cutoff[] = {"Low", "High"};
+static const char * const wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
+static const char * const wm8960_alcmode[] = {"ALC", "Limiter"};
+static const char * const wm8960_adc_data_output_sel[] = {
+       "Left Data = Left ADC;  Right Data = Right ADC",
+       "Left Data = Left ADC;  Right Data = Left ADC",
+       "Left Data = Right ADC; Right Data = Right ADC",
+       "Left Data = Right ADC; Right Data = Left ADC",
+};
+static const char * const wm8960_dmonomix[] = {"Stereo", "Mono"};
+
+static const struct soc_enum wm8960_enum[] = {
+       SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
+       SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
+       SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
+       SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
+       SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
+       SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
+       SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel),
+       SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix),
+};
+
 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0);
 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
@@ -47,6 +82,7 @@ SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
                 0, 127, 0, out_tlv),
 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
        0, 255, 0, adc_tlv),
+SOC_ENUM("ADC Data Output Select", wm8960_enum[6]),
 };
 
 #define RPMSG_RATES (SNDRV_PCM_RATE_8000_48000 |\
@@ -124,6 +160,8 @@ static int rpmsg_wm8960_probe(struct snd_soc_codec *codec)
        snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100);
        snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100);
 
+       snd_soc_update_bits(codec, WM8960_ADDCTL1, 0xC, 0x4);
+
        return 0;
 }