git.openwrt.org Git - openwrt/staging/adrian.git/blob

   1 From 0962637c67a56c1ae42ccb14c9e71c62f4aa1403 Mon Sep 17 00:00:00 2001
   2 From: Annaliese McDermond <nh6z@nh6z.net>
   3 Date: Wed, 3 Apr 2019 21:01:54 -0700
   4 Subject: [PATCH] ASoC: tlv320aic32x4: Add Switch for Setting Common
   5  Mode Voltage
   6
   7 commit 44ceee847e27c828f2f1ef4e400e6bc0c8d04de3 upstream.
   8
   9 Add a switch for setting common mode voltage.  This can allow
  10 for higher drive levels on the amplifier outputs.
  11
  12 Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
  13 Signed-off-by: Mark Brown <broonie@kernel.org>
  14 ---
  15  sound/soc/codecs/tlv320aic32x4.c | 7 +++++++
  16  1 file changed, 7 insertions(+)
  17
  18 --- a/sound/soc/codecs/tlv320aic32x4.c
  19 +++ b/sound/soc/codecs/tlv320aic32x4.c
  20 @@ -242,6 +242,12 @@ static DECLARE_TLV_DB_SCALE(tlv_driver_g
  21  /* -12dB min, 0.5dB steps */
  22  static DECLARE_TLV_DB_SCALE(tlv_adc_vol, -1200, 50, 0);
  23
  24 +static const char * const lo_cm_text[] = {
  25 +       "Full Chip", "1.65V",
  26 +};
  27 +
  28 +static SOC_ENUM_SINGLE_DECL(lo_cm_enum, AIC32X4_CMMODE, 3, lo_cm_text);
  29 +
  30  static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
  31         SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
  32                         AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm),
  33 @@ -255,6 +261,7 @@ static const struct snd_kcontrol_new aic
  34                         AIC32X4_HPRGAIN, 6, 0x01, 1),
  35         SOC_DOUBLE_R("LO DAC Playback Switch", AIC32X4_LOLGAIN,
  36                         AIC32X4_LORGAIN, 6, 0x01, 1),
  37 +       SOC_ENUM("LO Playback Common Mode Switch", lo_cm_enum),
  38         SOC_DOUBLE_R("Mic PGA Switch", AIC32X4_LMICPGAVOL,
  39                         AIC32X4_RMICPGAVOL, 7, 0x01, 1),
  40