Supports DMIC one-wire mode. Uses a DT property "dmic-mode" to select.
Signed-off-by: Jiaxin Yu <jiaxin.yu@xxxxxxxxxxxx>
---
sound/soc/codecs/mt6358.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/mt6358.c b/sound/soc/codecs/mt6358.c
index 1b830ea..1f39d59 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;
+
+ unsigned int dmic_one_wire_mode;
};
int mt6358_set_mtkaif_protocol(struct snd_soc_component *cmpnt,
@@ -1831,7 +1833,10 @@ static int mt6358_dmic_enable(struct mt6358_priv *priv)
mt6358_mtkaif_tx_enable(priv);
/* UL dmic setting */
- regmap_write(priv->regmap, MT6358_AFE_UL_SRC_CON0_H, 0x0080);
+ 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, 0x0003);
@@ -2426,6 +2431,20 @@ static int mt6358_codec_probe(struct snd_soc_component *cmpnt)
.num_dapm_routes = ARRAY_SIZE(mt6358_dapm_routes),
};
+static void mt6358_parse_dt(struct mt6358_priv *priv)
+{
+ int ret;
+ struct device *dev = priv->dev;
+
+ ret = of_property_read_u32(dev->of_node, "mediatek,dmic-mode",
+ &priv->dmic_one_wire_mode);
+ if (ret) {
+ dev_warn(priv->dev, "%s() failed to read dmic-mode\n",
+ __func__);
+ priv->dmic_one_wire_mode = 0;
+ }
+}
+
static int mt6358_platform_driver_probe(struct platform_device *pdev)
{
struct mt6358_priv *priv;
@@ -2445,6 +2464,8 @@ static int mt6358_platform_driver_probe(struct platform_device *pdev)
if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);
+ mt6358_parse_dt(priv);
+
dev_info(priv->dev, "%s(), dev name %s\n",
__func__, dev_name(&pdev->dev));
--
1.8.1.1.dirty
