Unverified Commit 2269f0c1 authored by Maxime Ripard's avatar Maxime Ripard
Browse files

dt-bindings: pwm: Convert Allwinner PWM to a schema 



The Allwinner SoCs have a PWM controller 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 <maxime.ripard@bootlin.com>
parent 913f36b6

Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml

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# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

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

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



title: Allwinner A10 PWM Device Tree Bindings



maintainers:

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

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



properties:

  "#pwm-cells":

    const: 3



  compatible:

    oneOf:

      - const: allwinner,sun4i-a10-pwm

      - const: allwinner,sun5i-a10s-pwm

      - const: allwinner,sun5i-a13-pwm

      - const: allwinner,sun7i-a20-pwm

      - const: allwinner,sun8i-h3-pwm

      - items:

          - const: allwinner,sun8i-a83t-pwm

          - const: allwinner,sun8i-h3-pwm

      - items:

          - const: allwinner,sun50i-a64-pwm

          - const: allwinner,sun5i-a13-pwm

      - items:

          - const: allwinner,sun50i-h5-pwm

          - const: allwinner,sun5i-a13-pwm



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



required:

  - "#pwm-cells"

  - compatible

  - reg

  - clocks



additionalProperties: false



examples:

  - |

    pwm: pwm@1c20e00 {

        compatible = "allwinner,sun7i-a20-pwm";

        reg = <0x01c20e00 0xc>;

        clocks = <&osc24M>;

        #pwm-cells = <3>;

    };



...

Documentation/devicetree/bindings/pwm/pwm-sun4i.txt

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Allwinner sun4i and sun7i SoC PWM controller



Required properties:

  - compatible: should be one of:

    - "allwinner,sun4i-a10-pwm"

    - "allwinner,sun5i-a10s-pwm"

    - "allwinner,sun5i-a13-pwm"

    - "allwinner,sun7i-a20-pwm"

    - "allwinner,sun8i-h3-pwm"

    - "allwinner,sun50i-a64-pwm", "allwinner,sun5i-a13-pwm"

    - "allwinner,sun50i-h5-pwm", "allwinner,sun5i-a13-pwm"

  - reg: physical base address and length of the controller's registers

  - #pwm-cells: should be 3. See pwm.txt in this directory for a description of

    the cells format.

  - clocks: From common clock binding, handle to the parent clock.



Example:



	pwm: pwm@1c20e00 {

		compatible = "allwinner,sun7i-a20-pwm";

		reg = <0x01c20e00 0xc>;

		clocks = <&osc24M>;

		#pwm-cells = <3>;

	};