Commit 692a0dc7 authored by Maxime Ripard's avatar Maxime Ripard Committed by Rob Herring
Browse files

dt-bindings: can: Convert Allwinner A10 CAN controller to a schema 



The older Allwinner SoCs have a CAN controller that is supported in Linux,
with a matching Device Tree binding.

Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.

Signed-off-by: default avatarMaxime Ripard <mripard@kernel.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent ffe9fc1f

Documentation/devicetree/bindings/net/can/allwinner,sun4i-a10-can.yaml

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# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/net/can/allwinner,sun4i-a10-can.yaml#

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



title: Allwinner A10 CAN Controller Device Tree Bindings



maintainers:

  - Chen-Yu Tsai <wens@csie.org>

  - Maxime Ripard <maxime.ripard@bootlin.com>



properties:

  compatible:

    oneOf:

      - items:

          - const: allwinner,sun7i-a20-can

          - const: allwinner,sun4i-a10-can

      - const: allwinner,sun4i-a10-can



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 1



required:

  - compatible

  - reg

  - interrupts

  - clocks



additionalProperties: false



examples:

  - |

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

    #include <dt-bindings/clock/sun7i-a20-ccu.h>



    can0: can@1c2bc00 {

        compatible = "allwinner,sun7i-a20-can",

                     "allwinner,sun4i-a10-can";

        reg = <0x01c2bc00 0x400>;

        interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&ccu CLK_APB1_CAN>;

    };



...

Documentation/devicetree/bindings/net/can/sun4i_can.txt

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Allwinner A10/A20 CAN controller Device Tree Bindings

-----------------------------------------------------



Required properties:

- compatible: "allwinner,sun4i-a10-can"

- reg: physical base address and size of the Allwinner A10/A20 CAN register map.

- interrupts: interrupt specifier for the sole interrupt.

- clock: phandle and clock specifier.



Example

-------



SoC common .dtsi file:



	can0_pins_a: can0@0 {

		allwinner,pins = "PH20","PH21";

		allwinner,function = "can";

		allwinner,drive = <0>;

		allwinner,pull = <0>;

	};

...

	can0: can@1c2bc00 {

		compatible = "allwinner,sun4i-a10-can";

		reg = <0x01c2bc00 0x400>;

		interrupts = <0 26 4>;

		clocks = <&apb1_gates 4>;

		status = "disabled";

	};



Board specific .dts file:



	can0: can@1c2bc00 {

		pinctrl-names = "default";

		pinctrl-0 = <&can0_pins_a>;

		status = "okay";

	};