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| author | Jiaxin Yu <jiaxin.yu@mediatek.com> | 2020-06-05 12:33:41 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-06-15 20:16:49 +0200 |
| commit | c46fc800948c2d0afb548ca12453b837aa1ac880 (patch) | |
| tree | b7e5800aff875abbbbee90d6fec49b6c3afce4fd /sound/soc/codecs/mt6358.c | |
| parent | Merge existing fixes from asoc/for-5.8 (diff) | |
| download | linux-c46fc800948c2d0afb548ca12453b837aa1ac880.tar.xz linux-c46fc800948c2d0afb548ca12453b837aa1ac880.zip | |
ASoC: mediatek: mt6358: support DMIC one-wire mode
Supports DMIC one-wire mode. Uses a DT property "dmic-mode" to select.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1591353222-18576-2-git-send-email-jiaxin.yu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/mt6358.c')
| -rw-r--r-- | sound/soc/codecs/mt6358.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sound/soc/codecs/mt6358.c b/sound/soc/codecs/mt6358.c index 1b830ea4f6ed..1f39d5998cf6 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 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)); |