79 lines
1.9 KiB
Plaintext
79 lines
1.9 KiB
Plaintext
RT5677 audio CODEC
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This device supports I2C only.
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Required properties:
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- compatible : "realtek,rt5677".
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- reg : The I2C address of the device.
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- interrupts : The CODEC's interrupt output.
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- gpio-controller : Indicates this device is a GPIO controller.
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- #gpio-cells : Should be two. The first cell is the pin number and the
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second cell is used to specify optional parameters (currently unused).
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Optional properties:
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- realtek,pow-ldo2-gpio : The GPIO that controls the CODEC's POW_LDO2 pin.
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- realtek,reset-gpio : The GPIO that controls the CODEC's RESET pin. Active low.
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- realtek,in1-differential
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- realtek,in2-differential
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- realtek,lout1-differential
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- realtek,lout2-differential
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- realtek,lout3-differential
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Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential,
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rather than single-ended.
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- realtek,gpio-config
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Array of six 8bit elements that configures GPIO.
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0 - floating (reset value)
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1 - pull down
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2 - pull up
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- realtek,jd1-gpio
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Configures GPIO Mic Jack detection 1.
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Select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively.
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- realtek,jd2-gpio
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- realtek,jd3-gpio
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Configures GPIO Mic Jack detection 2 and 3.
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Select 0 ~ 3 as OFF, GPIO4, GPIO5 and GPIO6 respectively.
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Pins on the device (for linking into audio routes):
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* IN1P
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* IN1N
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* IN2P
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* IN2N
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* MICBIAS1
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* DMIC1
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* DMIC2
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* DMIC3
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* DMIC4
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* LOUT1
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* LOUT2
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* LOUT3
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Example:
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rt5677 {
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compatible = "realtek,rt5677";
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reg = <0x2c>;
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interrupt-parent = <&gpio>;
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interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
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gpio-controller;
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#gpio-cells = <2>;
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realtek,pow-ldo2-gpio =
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<&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
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realtek,reset-gpio = <&gpio TEGRA_GPIO(BB, 3) GPIO_ACTIVE_LOW>;
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realtek,in1-differential = "true";
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realtek,gpio-config = /bits/ 8 <0 0 0 0 0 2>; /* pull up GPIO6 */
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realtek,jd2-gpio = <3>; /* Enables Jack detection for GPIO6 */
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};
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