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authorAnnaliese McDermond <nh6z@nh6z.net>2019-04-03 21:01:54 -0700
committerMark Brown <broonie@kernel.org>2019-04-04 20:48:54 +0700
commit44ceee847e27c828f2f1ef4e400e6bc0c8d04de3 (patch)
tree857a62fd860dd45d2bcf11f07b0ce3c68380a47f /sound/soc/codecs/tlv320aic32x4.c
parentb126fc07328749269021ac53173f9afdd6947248 (diff)
ASoC: tlv320aic32x4: Add Switch for Setting Common Mode Voltage
Add a switch for setting common mode voltage. This can allow for higher drive levels on the amplifier outputs. Signed-off-by: Annaliese McDermond <nh6z@nh6z.net> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/tlv320aic32x4.c')
-rw-r--r--sound/soc/codecs/tlv320aic32x4.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index aec86fd6ac15..77df2cbdf5f4 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -242,6 +242,12 @@ static DECLARE_TLV_DB_SCALE(tlv_driver_gain, -600, 100, 0);
/* -12dB min, 0.5dB steps */
static DECLARE_TLV_DB_SCALE(tlv_adc_vol, -1200, 50, 0);
+static const char * const lo_cm_text[] = {
+ "Full Chip", "1.65V",
+};
+
+static SOC_ENUM_SINGLE_DECL(lo_cm_enum, AIC32X4_CMMODE, 3, lo_cm_text);
+
static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm),
@@ -255,6 +261,7 @@ static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
AIC32X4_HPRGAIN, 6, 0x01, 1),
SOC_DOUBLE_R("LO DAC Playback Switch", AIC32X4_LOLGAIN,
AIC32X4_LORGAIN, 6, 0x01, 1),
+ SOC_ENUM("LO Playback Common Mode Switch", lo_cm_enum),
SOC_DOUBLE_R("Mic PGA Switch", AIC32X4_LMICPGAVOL,
AIC32X4_RMICPGAVOL, 7, 0x01, 1),