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ASoC: mediatek: mt6358: Add "Dmic Mode Switch" kcontrol for switch DMIC mode.

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There are two hardware connection methods for DMICs on the MT6358. In cases
where more than two DMICs are used, we need to time-multiplex these DMICs.
Therefore, we need to dynamically switch the modes of these DMICs based on
the actual usage scenarios.

            ---- DMIC1
AU_VIN0 ---
            ---- DMIC2

AU_VIN2 --- ----DMIC3

When we want to use DMIC1/2, configure it to one-wire mode. When we want to
use DMIC1/3, configure it to two-wire mode.

Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://patch.msgid.link/20240613020725.27874-1-jiaxin.yu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jiaxin Yu 2024-06-13 10:07:25 +08:00 committed by Mark Brown
parent 2604faa7b7
commit 4ae814dabc
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 37 additions and 1 deletions
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38
sound/soc/codecs/mt6358.c
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@ -96,7 +96,7 @@ struct mt6358_priv {
int wov_enabled;
unsigned int dmic_one_wire_mode;
int dmic_one_wire_mode;
};
int mt6358_set_mtkaif_protocol(struct snd_soc_component *cmpnt,
@ -577,6 +577,39 @@ static int mt6358_put_wov(struct snd_kcontrol *kcontrol,
return 0;
}
static int mt6358_dmic_mode_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(c);
ucontrol->value.integer.value[0] = priv->dmic_one_wire_mode;
dev_dbg(priv->dev, "%s() dmic_mode = %d", __func__, priv->dmic_one_wire_mode);
return 0;
}
static int mt6358_dmic_mode_set(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);
struct mt6358_priv *priv = snd_soc_component_get_drvdata(c);
int enabled = ucontrol->value.integer.value[0];
if (enabled < 0 || enabled > 1)
return -EINVAL;
if (priv->dmic_one_wire_mode != enabled) {
priv->dmic_one_wire_mode = enabled;
dev_dbg(priv->dev, "%s() dmic_mode = %d", __func__, priv->dmic_one_wire_mode);
return 1;
}
dev_dbg(priv->dev, "%s() dmic_mode = %d", __func__, priv->dmic_one_wire_mode);
return 0;
}
static const DECLARE_TLV_DB_SCALE(playback_tlv, -1000, 100, 0);
static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 600, 0);
@ -599,6 +632,9 @@ static const struct snd_kcontrol_new mt6358_snd_controls[] = {
SOC_SINGLE_BOOL_EXT("Wake-on-Voice Phase2 Switch", 0,
mt6358_get_wov, mt6358_put_wov),
SOC_SINGLE_BOOL_EXT("Dmic Mode Switch", 0,
mt6358_dmic_mode_get, mt6358_dmic_mode_set),
};
/* MUX */