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

   1 From 053938f67f73773152f70d89aa32e7893ee19694 Mon Sep 17 00:00:00 2001
   2 From: b-ak <anur.bhargav@gmail.com>
   3 Date: Wed, 9 Jan 2019 22:41:21 +0530
   4 Subject: [PATCH] ASoC: tlv320aic32x4: SND_SOC_DAPM_MICBIAS is
   5  deprecated
   6
   7 commit 04d979d7a7bac2f645cd827ea37e5ffa5b4e1f97 upstream.
   8
   9 SND_SOC_DAPM_MICBIAS is deprecated, replace it with SND_SOC_DAPM_SUPPLY.
  10
  11 MICBIAS voltage wasn't supplied to the microphone with the older
  12 SND_SOC_DAPM_MICBIAS widget, hence the microphone wouldn't work.
  13
  14 This patch fixes the problem.
  15
  16 Signed-off-by: b-ak <anur.bhargav@gmail.com>
  17 Signed-off-by: Mark Brown <broonie@kernel.org>
  18 ---
  19  sound/soc/codecs/tlv320aic32x4.c | 30 +++++++++++++++++++++++++++++-
  20  sound/soc/codecs/tlv320aic32x4.h |  1 +
  21  2 files changed, 30 insertions(+), 1 deletion(-)
  22
  23 --- a/sound/soc/codecs/tlv320aic32x4.c
  24 +++ b/sound/soc/codecs/tlv320aic32x4.c
  25 @@ -79,6 +79,32 @@ struct aic32x4_priv {
  26         struct device *dev;
  27  };
  28
  29 +static int mic_bias_event(struct snd_soc_dapm_widget *w,
  30 +       struct snd_kcontrol *kcontrol, int event)
  31 +{
  32 +       struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
  33 +
  34 +       switch (event) {
  35 +       case SND_SOC_DAPM_POST_PMU:
  36 +               /* Change Mic Bias Registor */
  37 +               snd_soc_component_update_bits(component, AIC32X4_MICBIAS,
  38 +                               AIC32x4_MICBIAS_MASK,
  39 +                               AIC32X4_MICBIAS_LDOIN |
  40 +                               AIC32X4_MICBIAS_2075V);
  41 +               printk(KERN_DEBUG "%s: Mic Bias will be turned ON\n", __func__);
  42 +               break;
  43 +       case SND_SOC_DAPM_PRE_PMD:
  44 +               snd_soc_component_update_bits(component, AIC32X4_MICBIAS,
  45 +                               AIC32x4_MICBIAS_MASK, 0);
  46 +               printk(KERN_DEBUG "%s: Mic Bias will be turned OFF\n",
  47 +                               __func__);
  48 +               break;
  49 +       }
  50 +
  51 +       return 0;
  52 +}
  53 +
  54 +
  55  static int aic32x4_get_mfp1_gpio(struct snd_kcontrol *kcontrol,
  56         struct snd_ctl_elem_value *ucontrol)
  57  {
  58 @@ -450,7 +476,9 @@ static const struct snd_soc_dapm_widget
  59         SND_SOC_DAPM_MUX("IN3_R to Left Mixer Negative Resistor", SND_SOC_NOPM, 0, 0,
  60                         in3r_to_lmixer_controls),
  61
  62 -       SND_SOC_DAPM_MICBIAS("Mic Bias", AIC32X4_MICBIAS, 6, 0),
  63 +       SND_SOC_DAPM_SUPPLY("Mic Bias", AIC32X4_MICBIAS, 6, 0, mic_bias_event,
  64 +                       SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
  65 +
  66
  67         SND_SOC_DAPM_OUTPUT("HPL"),
  68         SND_SOC_DAPM_OUTPUT("HPR"),
  69 --- a/sound/soc/codecs/tlv320aic32x4.h
  70 +++ b/sound/soc/codecs/tlv320aic32x4.h
  71 @@ -195,6 +195,7 @@ int aic32x4_remove(struct device *dev);
  72  /* AIC32X4_MICBIAS */
  73  #define AIC32X4_MICBIAS_LDOIN          BIT(3)
  74  #define AIC32X4_MICBIAS_2075V          0x60
  75 +#define AIC32x4_MICBIAS_MASK            GENMASK(6, 3)
  76
  77  /* AIC32X4_LMICPGANIN */
  78  #define AIC32X4_LMICPGANIN_IN2R_10K    0x10