95 lines
2.1 KiB
Plaintext
Executable file
95 lines
2.1 KiB
Plaintext
Executable file
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,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
|
|
|
|
Example:
|
|
|
|
rt5640 {
|
|
compatible = "realtek,rt5640";
|
|
reg = <0x1c>;
|
|
interrupt-parent = <&gpio>;
|
|
interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
|
|
realtek,ldo1-en-gpios =
|
|
<&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
|
|
};
|