52 lines
1.9 KiB
Plaintext
52 lines
1.9 KiB
Plaintext
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Sensortek stk301x, stk321x and stk331x ambient light/proximity 3-in-1 sensor
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Required properties:
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- compatible : Should be "stk,stk3x1x".
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- reg : i2c slave address of the device.
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- interrupt-parent : Parent of interrupt.
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- interrupts : Sensor will issue interrupt when preset condition is met,
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typically when proximity sensor detect a change on near/far state.
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- vdd-supply : Main power supply to power sensor.
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- vio-supply : Power supply required to pullup I2C bus.
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- stk,irq-gpio : irq gpio which is to provide interrupts to host, same as
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"interrupts" node.
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- stk,transmittance : Transmittance rate of glass above the ambient light
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detection window. The value may not be equal to real transmittance
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but just a relative value.
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- stk,state-reg : The default setting of state register.
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- stk,psctrl-reg : The default setting for proximity sensor.
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- stk,alsctrl-reg : The default setting for ambient light sensor.
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- stk,ledctrl-reg : The default setting for IR LED.
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- stk,wait-reg : The default setting for wait time.
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- stk,ps-thdh : High threshold for proximity sensor, sensor will report
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"near" if the proximity sensor reading is larger or equal to this
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value.
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- stk,ps-thdl : Low threshold for proximity sensor, sensor will report
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"far" if the proximity sensor reading is larger than this value.
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Optional properties:
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- stk,use-fir : Boolean to enable light data jitter suppressing FIR filter.
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Example:
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i2c@f9925000 {
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stk@48 {
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compatible = "stk,stk3x1x";
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reg = <0x48>;
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interrupt-parent = <&msmgpio>;
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interrupts = <80 0x2>;
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vdd-supply = <&pm8110_l19>;
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vio-supply = <&pm8110_l14>;
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stk,irq-gpio = <&msmgpio 80 0x02>;
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stk,transmittance = <500>;
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stk,state-reg = <0x00>;
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stk,psctrl-reg = <0x71>;
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stk,alsctrl-reg = <0x38>;
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stk,ledctrl-reg = <0xFF>;
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stk,wait-reg = <0x07>;
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stk,ps-thdh = <1700>;
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stk,ps-thdl = <1500>;
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stk,use-fir;
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};
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