dt-bindings: gpu: Convert v3d to json-schema

Broadcom V3D GPU

Only the Broadcom V3D 3.x and newer GPUs are covered by this binding.

For V3D 2.x, see brcm,bcm-vc4.txt.

Required properties:

- compatible:	Should be "brcm,7268-v3d" or "brcm,7278-v3d"

- reg:		Physical base addresses and lengths of the register areas

- reg-names:	Names for the register areas.  The "hub" and "core0"

		  register areas are always required.  The "gca" register area

		  is required if the GCA cache controller is present.  The

		  "bridge" register area is required if an external reset

		  controller is not present.

- interrupts:	The interrupt numbers.  The first interrupt is for the hub,

		  while the following interrupts are separate interrupt lines

		  for the cores (if they don't share the hub's interrupt).

		  See bindings/interrupt-controller/interrupts.txt

Optional properties:

- clocks:	The core clock the unit runs on

- resets:	The reset line for v3d, if not using a mapping of the bridge

		  See bindings/reset/reset.txt

v3d {

	compatible = "brcm,7268-v3d";

	reg = <0xf1204000 0x100>,

	      <0xf1200000 0x4000>,

	      <0xf1208000 0x4000>,

	      <0xf1204100 0x100>;

	reg-names = "bridge", "hub", "core0", "gca";

	interrupts = <0 78 4>,

		     <0 77 4>;

};

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/gpu/brcm,bcm-v3d.yaml#

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

title: Broadcom V3D GPU Bindings

maintainers:

  - Eric Anholt <eric@anholt.net>

  - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>

properties:

  $nodename:

    pattern: '^gpu@[a-f0-9]+$'

  compatible:

    enum:

      - brcm,7268-v3d

      - brcm,7278-v3d

  reg:

    items:

      - description: hub register (required)

      - description: core0 register (required)

      - description: GCA cache controller register (if GCA controller present)

      - description: bridge register (if no external reset controller)

    minItems: 2

  reg-names:

    items:

      - const: hub

      - const: core0

      - enum: [ bridge, gca ]

      - enum: [ bridge, gca ]

    minItems: 2

    maxItems: 4

  interrupts:

    items:

      - description: hub interrupt (required)

      - description: core interrupts (if it doesn't share the hub's interrupt)

    minItems: 1

  clocks:

    maxItems: 1

  resets:

    maxItems: 1

  power-domains:

    maxItems: 1

required:

  - compatible

  - reg

  - reg-names

  - interrupts

additionalProperties: false

examples:

  - |

    gpu@f1200000 {

      compatible = "brcm,7268-v3d";

      reg = <0xf1200000 0x4000>,

            <0xf1208000 0x4000>,

            <0xf1204000 0x100>,

            <0xf1204100 0x100>;

      reg-names = "hub", "core0", "bridge", "gca";

      interrupts = <0 78 4>,

                   <0 77 4>;

    };

...