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Commit e0549df6 authored by Linus Walleij's avatar Linus Walleij Committed by Jonathan Cameron
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iio: gyro: Add MPU-3050 device tree bindings 



This adds device tree bindings for the MPU-3050 gyroscope. Since it
is the first set of bindings for a gyroscope, the folder for it
is also created.

Cc: devicetree@vger.kernel.org
Cc: Peter Rosin <peda@axentia.se>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 49b9137a

Documentation/devicetree/bindings/iio/gyroscope/invensense,mpu3050.txt

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Invensense MPU-3050 Gyroscope device tree bindings



Required properties:

  - compatible : should be "invensense,mpu3050"

  - reg : the I2C address of the sensor



Optional properties:

  - interrupt-parent : should be the phandle for the interrupt controller

  - interrupts : interrupt mapping for the trigger interrupt from the

    internal oscillator. The following IRQ modes are supported:

    IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING, IRQ_TYPE_LEVEL_HIGH and

    IRQ_TYPE_LEVEL_LOW. The driver should detect and configure the hardware

    for the desired interrupt type.

  - vdd-supply : supply regulator for the main power voltage.

  - vlogic-supply : supply regulator for the signal voltage.

  - mount-matrix : see iio/mount-matrix.txt



Optional subnodes:

  - The MPU-3050 will pass through and forward the I2C signals from the

    incoming I2C bus, alternatively drive traffic to a slave device (usually

    an accelerometer) on its own initiative. Therefore is supports a subnode

    i2c gate node. For details see: i2c/i2c-gate.txt



Example:



mpu3050@68 {

	compatible = "invensense,mpu3050";

	reg = <0x68>;

	interrupt-parent = <&foo>;

	interrupts = <12 IRQ_TYPE_EDGE_FALLING>;

	vdd-supply = <&bar>;

	vlogic-supply = <&baz>;



	/* External I2C interface */

	i2c-gate {

		#address-cells = <1>;

		#size-cells = <0>;



		fnord@18 {

			compatible = "fnord";

			reg = <0x18>;

			interrupt-parent = <&foo>;

			interrupts = <13 IRQ_TYPE_EDGE_FALLING>;

		};

	};

};