Commit 84184107 authored by Thierry Reding's avatar Thierry Reding Committed by Rob Herring
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dt-bindings: i2c: tegra-bpmp: Convert to json-schema 



Convert the NVIDIA Tegra186 (and later) BPMP I2C bindings from the
free-form text format to json-schema.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211208143306.534700-1-thierry.reding@gmail.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent de3f6daa

Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.txt

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NVIDIA Tegra186 BPMP I2C controller



In Tegra186, the BPMP (Boot and Power Management Processor) owns certain HW

devices, such as the I2C controller for the power management I2C bus. Software

running on other CPUs must perform IPC to the BPMP in order to execute

transactions on that I2C bus. This binding describes an I2C bus that is

accessed in such a fashion.



The BPMP I2C node must be located directly inside the main BPMP node. See

../firmware/nvidia,tegra186-bpmp.txt for details of the BPMP binding.



This node represents an I2C controller. See ../i2c/i2c.txt for details of the

core I2C binding.



Required properties:

- compatible:

    Array of strings.

    One of:

    - "nvidia,tegra186-bpmp-i2c".

- #address-cells: Address cells for I2C device address.

    Single-cell integer.

    Must be <1>.

- #size-cells:

    Single-cell integer.

    Must be <0>.

- nvidia,bpmp-bus-id:

    Single-cell integer.

    Indicates the I2C bus number this DT node represent, as defined by the

    BPMP firmware.



Example:



bpmp {

	...



	i2c {

		compatible = "nvidia,tegra186-bpmp-i2c";

		#address-cells = <1>;

		#size-cells = <0>;

		nvidia,bpmp-bus-id = <5>;

	};

};

Documentation/devicetree/bindings/i2c/nvidia,tegra186-bpmp-i2c.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/i2c/nvidia,tegra186-bpmp-i2c.yaml#

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



title: NVIDIA Tegra186 (and later) BPMP I2C controller



maintainers:

  - Thierry Reding <thierry.reding@gmail.com>

  - Jon Hunter <jonathanh@nvidia.com>



description: |

  In Tegra186 and later, the BPMP (Boot and Power Management Processor)

  owns certain HW devices, such as the I2C controller for the power

  management I2C bus. Software running on other CPUs must perform IPC to

  the BPMP in order to execute transactions on that I2C bus. This

  binding describes an I2C bus that is accessed in such a fashion.



  The BPMP I2C node must be located directly inside the main BPMP node.

  See ../firmware/nvidia,tegra186-bpmp.yaml for details of the BPMP

  binding.



  This node represents an I2C controller. See ../i2c/i2c.txt for details

  of the core I2C binding.



properties:

  compatible:

    const: nvidia,tegra186-bpmp-i2c



  nvidia,bpmp-bus-id:

    $ref: /schemas/types.yaml#/definitions/uint32

    description: Indicates the I2C bus number this DT node represents,

      as defined by the BPMP firmware.



allOf:

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



unevaluatedProperties: false



required:

  - compatible

  - "#address-cells"

  - "#size-cells"

  - nvidia,bpmp-bus-id