[alsa-devel] [PATCH 18/19] ASoC: upd9976: add capture volume for analog inputs

[Lu Guanqun]

Signed-off-by: Lu Guanqun <guanqun.lu at intel.com>
---
 sound/soc/codecs/upd9976.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/sound/soc/codecs/upd9976.c b/sound/soc/codecs/upd9976.c
index f345db1..6fc9902 100644
--- a/sound/soc/codecs/upd9976.c
+++ b/sound/soc/codecs/upd9976.c
@@ -110,6 +110,11 @@ static int upd9976_mic2_bias_event(struct snd_soc_dapm_widget *widget,
  */
 static DECLARE_TLV_DB_SCALE(mixer_tlv, -2500, 100, 0);
 
+/*
+ * Analog Volume: from -25 dB to 6 dB in 1 dB steps.
+ */
+static DECLARE_TLV_DB_SCALE(analog_tlv, -2500, 100, 0);
+
 static const struct snd_kcontrol_new upd9976_snd_controls[] = {
 	SOC_DOUBLE_R_TLV("Headphone & Speaker Volume",
 			 UPD9976_HPSPRLVOL, UPD9976_HPSPRRVOL,
@@ -117,6 +122,9 @@ static const struct snd_kcontrol_new upd9976_snd_controls[] = {
 	SOC_SINGLE("Internal Mic Switch", UPD9976_DMICCTRL1, 6, 1, 0),
 	SOC_DOUBLE_R("Analog Mic Switch", UPD9976_LILSEL, UPD9976_LIRSEL,
 		     6, 1, 0),
+	SOC_DOUBLE_R_TLV("Analog Capture Volume",
+			 UPD9976_LILSEL, UPD9976_LILSEL,
+			 0, 0x1f, 1, analog_tlv),
 };
 
 static const struct snd_kcontrol_new upd9976_hp_spkr_mixer_left_controls[] = {