SND_SOC_DAPM_MICBIAS is deprecated, replace it with SND_SOC_DAPM_SUPPLY.
MICBIAS voltage wasn't supplied to the microphone with the older
SND_SOC_DAPM_MICBIAS widget, hence the microphone wouldn't work.
This patch fixes the problem.
Signed-off-by: b-ak <anur.bhar...@gmail.com>
---
sound/soc/codecs/tlv320aic32x4.c | 30 +++++++++++++++++++++++++++++-
sound/soc/codecs/tlv320aic32x4.h | 1 +
2 files changed, 30 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index e2b5a11b16d1..521663d8b585 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -79,6 +79,32 @@ struct aic32x4_priv {
struct device *dev;
};
+static int mic_bias_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component =
snd_soc_dapm_to_component(w->dapm);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ /* Change Mic Bias Registor */
+ snd_soc_component_update_bits(component, AIC32X4_MICBIAS,
+ AIC32x4_MICBIAS_MASK,
+ AIC32X4_MICBIAS_LDOIN |
+ AIC32X4_MICBIAS_2075V);
+ printk(KERN_DEBUG "%s: Mic Bias will be turned ON\n", __func__);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ snd_soc_component_update_bits(component, AIC32X4_MICBIAS,
+ AIC32x4_MICBIAS_MASK, 0);
+ printk(KERN_DEBUG "%s: Mic Bias will be turned OFF\n",
+ __func__);
+ break;
+ }
+
+ return 0;
+}
+
+
static int aic32x4_get_mfp1_gpio(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
@@ -450,7 +476,9 @@ static const struct snd_soc_dapm_widget
aic32x4_dapm_widgets[] = {
SND_SOC_DAPM_MUX("IN3_R to Left Mixer Negative Resistor", SND_SOC_NOPM,
0, 0,
in3r_to_lmixer_controls),
- SND_SOC_DAPM_MICBIAS("Mic Bias", AIC32X4_MICBIAS, 6, 0),
+ SND_SOC_DAPM_SUPPLY("Mic Bias", AIC32X4_MICBIAS, 6, 0, mic_bias_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+
SND_SOC_DAPM_OUTPUT("HPL"),
SND_SOC_DAPM_OUTPUT("HPR"),
diff --git a/sound/soc/codecs/tlv320aic32x4.h b/sound/soc/codecs/tlv320aic32x4.h
index e9df49edbf19..c2d74025bf4b 100644
--- a/sound/soc/codecs/tlv320aic32x4.h
+++ b/sound/soc/codecs/tlv320aic32x4.h
@@ -195,6 +195,7 @@ int aic32x4_remove(struct device *dev);
/* AIC32X4_MICBIAS */
#define AIC32X4_MICBIAS_LDOIN BIT(3)
#define AIC32X4_MICBIAS_2075V 0x60
+#define AIC32x4_MICBIAS_MASK GENMASK(6, 3)
/* AIC32X4_LMICPGANIN */
#define AIC32X4_LMICPGANIN_IN2R_10K 0x10
--
2.19.1
