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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>
This commit is contained in:
Annaliese McDermond 2019-04-03 21:01:54 -07:00 committed by Mark Brown
parent b126fc0732
commit 44ceee847e
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GPG Key ID: 24D68B725D5487D0
1 changed files with 7 additions and 0 deletions
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7
sound/soc/codecs/tlv320aic32x4.c
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@ -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),