Supports DMIC one-wire mode. Adds a mixer control to enable and disable.
Signed-off-by: Jiaxin Yu jiaxin.yu@mediatek.com Reviewed-by: Tzung-Bi Shih tzungbi@google.com --- sound/soc/codecs/mt6358.c | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/mt6358.c b/sound/soc/codecs/mt6358.c index 1b830ea..ca7628d 100644 --- a/sound/soc/codecs/mt6358.c +++ b/sound/soc/codecs/mt6358.c @@ -95,6 +95,8 @@ struct mt6358_priv { struct regulator *avdd_reg;
int wov_enabled; + + int dmic_one_wire_mode; };
int mt6358_set_mtkaif_protocol(struct snd_soc_component *cmpnt, @@ -566,6 +568,28 @@ static int mt6358_put_wov(struct snd_kcontrol *kcontrol, return 0; }
+static int mt6358_dmic_one_wire_mode_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt); + + ucontrol->value.integer.value[0] = priv->dmic_one_wire_mode; + + return 0; +} + +static int mt6358_dmic_one_wire_mode_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct mt6358_priv *priv = snd_soc_component_get_drvdata(cmpnt); + + priv->dmic_one_wire_mode = ucontrol->value.integer.value[0]; + + return 0; +} + static const DECLARE_TLV_DB_SCALE(playback_tlv, -1000, 100, 0); static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 600, 0);
@@ -588,6 +612,10 @@ static int mt6358_put_wov(struct snd_kcontrol *kcontrol,
SOC_SINGLE_BOOL_EXT("Wake-on-Voice Phase2 Switch", 0, mt6358_get_wov, mt6358_put_wov), + + SOC_SINGLE_BOOL_EXT("Dmic One Wire Mode", 0, + mt6358_dmic_one_wire_mode_get, + mt6358_dmic_one_wire_mode_set), };
/* MUX */ @@ -1740,7 +1768,10 @@ static int mt6358_amic_enable(struct mt6358_priv *priv) mt6358_mtkaif_tx_enable(priv);
/* UL dmic setting off */ - regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_H, 0x0000); + if (priv->dmic_one_wire_mode) + regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_H, 0x0400); + else + regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_H, 0x0080);
/* UL turn on */ regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_L, 0x0001);