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41 lines
1.4 KiB
Diff
41 lines
1.4 KiB
Diff
From 0962637c67a56c1ae42ccb14c9e71c62f4aa1403 Mon Sep 17 00:00:00 2001
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From: Annaliese McDermond <nh6z@nh6z.net>
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Date: Wed, 3 Apr 2019 21:01:54 -0700
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Subject: [PATCH] ASoC: tlv320aic32x4: Add Switch for Setting Common
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Mode Voltage
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commit 44ceee847e27c828f2f1ef4e400e6bc0c8d04de3 upstream.
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Add a switch for setting common mode voltage. This can allow
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for higher drive levels on the amplifier outputs.
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Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
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Signed-off-by: Mark Brown <broonie@kernel.org>
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---
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sound/soc/codecs/tlv320aic32x4.c | 7 +++++++
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1 file changed, 7 insertions(+)
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--- a/sound/soc/codecs/tlv320aic32x4.c
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+++ b/sound/soc/codecs/tlv320aic32x4.c
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@@ -242,6 +242,12 @@ static DECLARE_TLV_DB_SCALE(tlv_driver_g
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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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+
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+static SOC_ENUM_SINGLE_DECL(lo_cm_enum, AIC32X4_CMMODE, 3, lo_cm_text);
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+
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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 aic
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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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