The capture and playback paths both have a configurable gain after their
respective mixer, which can be set from -31 dB to 0 dB in 32 steps.
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
sound/soc/codecs/jz4770.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/sound/soc/codecs/jz4770.c b/sound/soc/codecs/jz4770.c
index 6b60120f59a6..1d0c467ab57b 100644
--- a/sound/soc/codecs/jz4770.c
+++ b/sound/soc/codecs/jz4770.c
@@ -307,6 +307,7 @@ static const DECLARE_TLV_DB_MINMAX_MUTE(dac_tlv, -3100, 0);
static const DECLARE_TLV_DB_SCALE(adc_tlv, 0, 100, 0);
static const DECLARE_TLV_DB_MINMAX(out_tlv, -2500, 600);
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 jz4770_codec_snd_controls[] = {
@@ -319,6 +320,14 @@ static const struct snd_kcontrol_new jz4770_codec_snd_controls[] = {
SOC_DOUBLE_R_TLV("Line In Bypass Playback Volume",
JZ4770_CODEC_REG_GCR_LIBYL, JZ4770_CODEC_REG_GCR_LIBYR,
REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 1, linein_tlv),
+
+ SOC_SINGLE_TLV("Mixer Capture Volume",
+ JZ4770_CODEC_REG_GCR_MIXADC,
+ REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 1, mixer_tlv),
+
+ SOC_SINGLE_TLV("Mixer Playback Volume",
+ JZ4770_CODEC_REG_GCR_MIXDAC,
+ REG_GCR_GAIN_OFFSET, REG_GCR_GAIN_MAX, 1, mixer_tlv),
};
static const struct snd_kcontrol_new jz4770_codec_pcm_playback_controls[] = {
--
2.33.0
