diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/rt5677.txt | 9 | ||||
| -rw-r--r-- | include/sound/rt5677.h | 5 | ||||
| -rw-r--r-- | sound/soc/codecs/rt5677.c | 23 |
3 files changed, 36 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/rt5677.txt b/Documentation/devicetree/bindings/sound/rt5677.txt index bd28df604b7b..0701b834fc73 100644 --- a/Documentation/devicetree/bindings/sound/rt5677.txt +++ b/Documentation/devicetree/bindings/sound/rt5677.txt @@ -19,6 +19,14 @@ Optional properties: - realtek,pow-ldo2-gpio : The GPIO that controls the CODEC's POW_LDO2 pin. +- realtek,in1-differential +- realtek,in2-differential +- realtek,lout1-differential +- realtek,lout2-differential +- realtek,lout3-differential + Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential, + rather than single-ended. + Pins on the device (for linking into audio routes): * IN1P @@ -47,4 +55,5 @@ rt5677 { realtek,pow-ldo2-gpio = <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; + realtek,in1-differential = "true"; }; diff --git a/include/sound/rt5677.h b/include/sound/rt5677.h index a676717f74f4..082670e3a353 100644 --- a/include/sound/rt5677.h +++ b/include/sound/rt5677.h @@ -19,9 +19,12 @@ enum rt5677_dmic2_clk { struct rt5677_platform_data { - /* IN1 IN2 can optionally be differential */ + /* IN1/IN2/LOUT1/LOUT2/LOUT3 can optionally be differential */ bool in1_diff; bool in2_diff; + bool lout1_diff; + bool lout2_diff; + bool lout3_diff; /* DMIC2 clock source selection */ enum rt5677_dmic2_clk dmic2_clk_pin; }; diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c index d2c6abf38ad2..97dff7172fb6 100644 --- a/sound/soc/codecs/rt5677.c +++ b/sound/soc/codecs/rt5677.c @@ -3569,6 +3569,17 @@ MODULE_DEVICE_TABLE(i2c, rt5677_i2c_id); static int rt5677_parse_dt(struct rt5677_priv *rt5677, struct device_node *np) { + rt5677->pdata.in1_diff = of_property_read_bool(np, + "realtek,in1-differential"); + rt5677->pdata.in2_diff = of_property_read_bool(np, + "realtek,in2-differential"); + rt5677->pdata.lout1_diff = of_property_read_bool(np, + "realtek,lout1-differential"); + rt5677->pdata.lout2_diff = of_property_read_bool(np, + "realtek,lout2-differential"); + rt5677->pdata.lout3_diff = of_property_read_bool(np, + "realtek,lout3-differential"); + rt5677->pow_ldo2 = of_get_named_gpio(np, "realtek,pow-ldo2-gpio", 0); @@ -3660,6 +3671,18 @@ static int rt5677_i2c_probe(struct i2c_client *i2c, regmap_update_bits(rt5677->regmap, RT5677_IN1, RT5677_IN_DF2, RT5677_IN_DF2); + if (rt5677->pdata.lout1_diff) + regmap_update_bits(rt5677->regmap, RT5677_LOUT1, + RT5677_LOUT1_L_DF, RT5677_LOUT1_L_DF); + + if (rt5677->pdata.lout2_diff) + regmap_update_bits(rt5677->regmap, RT5677_LOUT1, + RT5677_LOUT2_L_DF, RT5677_LOUT2_L_DF); + + if (rt5677->pdata.lout3_diff) + regmap_update_bits(rt5677->regmap, RT5677_LOUT1, + RT5677_LOUT3_L_DF, RT5677_LOUT3_L_DF); + if (rt5677->pdata.dmic2_clk_pin == RT5677_DMIC_CLK2) { regmap_update_bits(rt5677->regmap, RT5677_GEN_CTRL2, RT5677_GPIO5_FUNC_MASK, |