ASoC: TWL4030: Add volume controls for outputs

All outputs have dedicated gain controls except the
HandsFree output.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 1dae73af5273..ffd5120697a2 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -367,6 +367,12 @@ static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0, 600, 0);
 static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
 
 /*
+ * Gain controls tied to outputs
+ * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
+ */
+static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
+
+/*
  * Capture gain after the ADCs
  * from 0 dB to 31 dB in 1 dB steps
  */
@@ -395,6 +401,21 @@ static const struct snd_kcontrol_new twl4030_snd_controls[] = {
                 TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
                 3, 0x12, 1, analog_tlv),
 
+        /* Separate output gain controls */
+        SOC_DOUBLE_R_TLV_TWL4030("PreDriv Playback Volume",
+                TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
+                4, 3, 0, output_tvl),
+
+        SOC_DOUBLE_TLV_TWL4030("Headset Playback Volume",
+                TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, output_tvl),
+
+        SOC_DOUBLE_R_TLV_TWL4030("Carkit Playback Volume",
+                TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
+                4, 3, 0, output_tvl),
+
+        SOC_SINGLE_TLV_TWL4030("Earpiece Playback Volume",
+                TWL4030_REG_EAR_CTL, 4, 3, 0, output_tvl),
+
         /* Common capture gain controls */
         SOC_DOUBLE_R_TLV("Capture Volume",
                 TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,