Unverified Commit c46fc800 authored by Jiaxin Yu's avatar Jiaxin Yu Committed by Mark Brown
Browse files

ASoC: mediatek: mt6358: support DMIC one-wire mode 



Supports DMIC one-wire mode. Uses a DT property "dmic-mode" to select.

Signed-off-by: default avatarJiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1591353222-18576-2-git-send-email-jiaxin.yu@mediatek.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 17212e71

sound/soc/codecs/mt6358.c

+22 −1
Original line number Diff line number Diff line
@@ -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,
@@ -1831,6 +1833,9 @@ static int mt6358_dmic_enable(struct mt6358_priv *priv) 
	mt6358_mtkaif_tx_enable(priv);



	/* UL dmic setting */

	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 */
@@ -2426,6 +2431,20 @@ static const struct snd_soc_component_driver mt6358_soc_component_driver = { 
	.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));