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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>
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@ -242,6 +242,12 @@ static DECLARE_TLV_DB_SCALE(tlv_driver_gain, -600, 100, 0);
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/* -12dB min, 0.5dB steps */
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static DECLARE_TLV_DB_SCALE(tlv_adc_vol, -1200, 50, 0);
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static const char * const lo_cm_text[] = {
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"Full Chip", "1.65V",
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};
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static SOC_ENUM_SINGLE_DECL(lo_cm_enum, AIC32X4_CMMODE, 3, lo_cm_text);
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static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
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SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
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AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm),
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@ -255,6 +261,7 @@ static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
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AIC32X4_HPRGAIN, 6, 0x01, 1),
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SOC_DOUBLE_R("LO DAC Playback Switch", AIC32X4_LOLGAIN,
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AIC32X4_LORGAIN, 6, 0x01, 1),
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SOC_ENUM("LO Playback Common Mode Switch", lo_cm_enum),
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SOC_DOUBLE_R("Mic PGA Switch", AIC32X4_LMICPGAVOL,
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AIC32X4_RMICPGAVOL, 7, 0x01, 1),
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