Commit 74978747 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

dt-bindings:iio:gyro:invensense,mpu3050: txt to yaml format conversion. 



Very similar to the mpu6050 binding.
Only unusual element is the i2c-gate section.
Example tweaked a little to include a real device behind the gate.

As Rob Herring suggested, dropped use of explicit i2c-gate yaml
binding in favour of just using the i2c-controller.yaml binding
directly.

Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201128173343.390165-4-jic23@kernel.org
parent 44fd8813

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:

  - 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>;

		};

	};

};

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

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/gyroscope/invensense,mpu3050.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Invensense MPU-3050 Gyroscope



maintainers:

  - Linus Walleij <linus.walleij@linaro.org>



properties:

  compatible:

    const: invensense,mpu3050



  reg:

    maxItems: 1



  vdd-supply: true



  vlogic-supply: true



  interrupts:

    minItems: 1

    description:

      Interrupt mapping for the trigger interrupt from the internal oscillator.



  mount-matrix: true



  i2c-gate:

    $ref: /schemas/i2c/i2c-controller.yaml

    unevaluatedProperties: false

    description: |

      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 an

      i2c-gate subnode.



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;

        gyroscope@68 {

            compatible = "invensense,mpu3050";

            reg = <0x68>;

            interrupt-parent = <&foo>;

            interrupts = <12 IRQ_TYPE_EDGE_FALLING>;

            vdd-supply = <&bar>;

            vlogic-supply = <&baz>;



            i2c-gate {

                #address-cells = <1>;

                #size-cells = <0>;



                magnetometer@c {

                    compatible = "ak,ak8975";

                    reg = <0x0c>;

                };

            };

        };

    };

...