41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
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Freescale MMA8x5x 3-Axis Orientation/Motion Detection Sensor series
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(MMA8451/MMA8452/MMA8453/MMA8652/MMA8653)
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The Freescale 3-Axis Orientation/Motion Detection Sensor is
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connected to host processor via i2c.
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The sensor can be polling for acceleration data or configure to
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generates interrupts when a motion is detected.
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Required properties:
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- compatible : should be "fsl,mma8x5x"
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- reg : i2c slave address of the device
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- vdd-supply : power supply needed to power up the device.
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- vio-supply : power supply needed for device IO and to pullup i2c bus.
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- fsl,sensors-position : select from 0 to 7 depends on how the sensor is
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mounting on the board, this will decide how the 3-axis reading
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of data will be translated to X/Y/Z axis of acceleration data.
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Optional properties:
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Sensor can work on polling mode or interrupt mode, following interrupt
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is required if the sensor need to work on interrupt mode.
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- interrupt-parent : parent of interrupt.
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- interrupts : sensor signal interrupt to indicate new data ready or
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a motion is detected.
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- fsl,use-interrupt : to enable interrupt mode.
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- fsl,irq-gpio : First irq gpio which is to provide interrupts to host, same
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as "interrupts" node. It will also contain active low or active
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high information.
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Example:
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fsl@1c {
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compatible = "fsl,mma8x5x";
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reg = <0x1c>;
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interrupt-parent = <&msmgpio>;
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interrupts = <81 0x2>;
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vdd-supply = <&pm8110_l19>;
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vio-supply = <&pm8110_l14>;
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fsl,sensors-position = <5>;
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fsl,irq-gpio = <&msmgpio 0x81 0x02>;
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fsl,use-interrupt;
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};
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