| RT5640/RT5639 audio CODEC |
| |
| This device supports I2C only. |
| |
| Required properties: |
| |
| - compatible : One of "realtek,rt5640" or "realtek,rt5639". |
| |
| - reg : The I2C address of the device. |
| |
| - interrupts : The CODEC's interrupt output. |
| |
| Optional properties: |
| |
| - clocks: The phandle of the master clock to the CODEC |
| - clock-names: Should be "mclk" |
| |
| - realtek,in1-differential |
| - realtek,in2-differential |
| - realtek,in3-differential |
| Boolean. Indicate MIC1/2/3 input are differential, rather than single-ended. |
| |
| - realtek,lout-differential |
| Boolean. Indicate LOUT output is differential, rather than stereo. |
| |
| - realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. |
| |
| - realtek,dmic1-data-pin |
| 0: dmic1 is not used |
| 1: using IN1P pin as dmic1 data pin |
| 2: using GPIO3 pin as dmic1 data pin |
| |
| - realtek,dmic2-data-pin |
| 0: dmic2 is not used |
| 1: using IN1N pin as dmic2 data pin |
| 2: using GPIO4 pin as dmic2 data pin |
| |
| - realtek,jack-detect-source |
| u32. Valid values: |
| 0: jack-detect is not used |
| 1: Use GPIO1 for jack-detect |
| 2: Use JD1_IN4P for jack-detect |
| 3: Use JD2_IN4N for jack-detect |
| 4: Use GPIO2 for jack-detect |
| 5: Use GPIO3 for jack-detect |
| 6: Use GPIO4 for jack-detect |
| |
| - realtek,jack-detect-not-inverted |
| bool. Normal jack-detect switches give an inverted signal, set this bool |
| in the rare case you've a jack-detect switch which is not inverted. |
| |
| - realtek,over-current-threshold-microamp |
| u32, micbias over-current detection threshold in µA, valid values are |
| 600, 1500 and 2000µA. |
| |
| - realtek,over-current-scale-factor |
| u32, micbias over-current detection scale-factor, valid values are: |
| 0: Scale current by 0.5 |
| 1: Scale current by 0.75 |
| 2: Scale current by 1.0 |
| 3: Scale current by 1.5 |
| |
| Pins on the device (for linking into audio routes) for RT5639/RT5640: |
| |
| * DMIC1 |
| * DMIC2 |
| * MICBIAS1 |
| * IN1P |
| * IN1N |
| * IN2P |
| * IN2N |
| * IN3P |
| * IN3N |
| * HPOL |
| * HPOR |
| * LOUTL |
| * LOUTR |
| * SPOLP |
| * SPOLN |
| * SPORP |
| * SPORN |
| |
| Additional pins on the device for RT5640: |
| |
| * MONOP |
| * MONON |
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| Example: |
| |
| rt5640 { |
| compatible = "realtek,rt5640"; |
| reg = <0x1c>; |
| interrupt-parent = <&gpio>; |
| interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_HIGH>; |
| realtek,ldo1-en-gpios = |
| <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; |
| }; |
