Both the DAC and ADC have digital gain controls available
for their mixers, which go from -31 to 0db by step of 1db.
Signed-off-by: Christophe Branchereau <cbranchereau@xxxxxxxxx>
---
sound/soc/codecs/jz4760.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sound/soc/codecs/jz4760.c b/sound/soc/codecs/jz4760.c
index d96a4f6c9183..9df58e23d360 100644
--- a/sound/soc/codecs/jz4760.c
+++ b/sound/soc/codecs/jz4760.c
@@ -287,6 +287,7 @@ static const DECLARE_TLV_DB_MINMAX_MUTE(dac_tlv, -3100, 100);
static const DECLARE_TLV_DB_SCALE(adc_tlv, 0, 100, 0);
static const DECLARE_TLV_DB_MINMAX(out_tlv, -2500, 100);
static const DECLARE_TLV_DB_SCALE(linein_tlv, -2500, 100, 0);
+static const DECLARE_TLV_DB_MINMAX(mixer_tlv, -3100, 0);
/* Unconditional controls. */
static const struct snd_kcontrol_new jz4760_codec_snd_controls[] = {
@@ -299,6 +300,14 @@ static const struct snd_kcontrol_new jz4760_codec_snd_controls[] = {
JZ4760_CODEC_REG_GCR4, JZ4760_CODEC_REG_GCR3,
REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 1, linein_tlv),
+ SOC_SINGLE_TLV("Mixer Capture Volume",
+ JZ4760_CODEC_REG_MIX1,
+ REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 1, mixer_tlv),
+
+ SOC_SINGLE_TLV("Mixer Playback Volume",
+ JZ4760_CODEC_REG_MIX2,
+ REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 1, mixer_tlv),
+
SOC_SINGLE("High-Pass Filter Capture Switch",
JZ4760_CODEC_REG_CR4,
REG_CR4_ADC_HPF_OFFSET, 1, 0),
--
2.39.0
