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Unverified Commit 44ceee84 authored by Annaliese McDermond's avatar Annaliese McDermond Committed by Mark Brown
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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: default avatarAnnaliese McDermond <nh6z@nh6z.net>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent b126fc07

sound/soc/codecs/tlv320aic32x4.c

+7 −0
Original line number Diff line number Diff line
@@ -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),