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dt-bindings: gpu: Convert v3d to json-schema
This converts the v3d bindings to yaml format. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Link: https://lore.kernel.org/r/1610564917-11559-1-git-send-email-stefan.wahren@i2se.com Signed-off-by: Rob Herring <robh@kernel.org>
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Documentation/devicetree/bindings/gpu
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Broadcom V3D GPU
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Only the Broadcom V3D 3.x and newer GPUs are covered by this binding.
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For V3D 2.x, see brcm,bcm-vc4.txt.
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Required properties:
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- compatible: Should be "brcm,7268-v3d" or "brcm,7278-v3d"
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- reg: Physical base addresses and lengths of the register areas
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- reg-names: Names for the register areas. The "hub" and "core0"
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register areas are always required. The "gca" register area
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is required if the GCA cache controller is present. The
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"bridge" register area is required if an external reset
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controller is not present.
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- interrupts: The interrupt numbers. The first interrupt is for the hub,
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while the following interrupts are separate interrupt lines
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for the cores (if they don't share the hub's interrupt).
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See bindings/interrupt-controller/interrupts.txt
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Optional properties:
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- clocks: The core clock the unit runs on
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- resets: The reset line for v3d, if not using a mapping of the bridge
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See bindings/reset/reset.txt
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v3d {
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compatible = "brcm,7268-v3d";
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reg = <0xf1204000 0x100>,
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<0xf1200000 0x4000>,
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<0xf1208000 0x4000>,
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<0xf1204100 0x100>;
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reg-names = "bridge", "hub", "core0", "gca";
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interrupts = <0 78 4>,
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<0 77 4>;
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};
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/gpu/brcm,bcm-v3d.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom V3D GPU Bindings
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maintainers:
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- Eric Anholt <eric@anholt.net>
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- Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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properties:
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$nodename:
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pattern: '^gpu@[a-f0-9]+$'
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compatible:
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enum:
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- brcm,7268-v3d
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- brcm,7278-v3d
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reg:
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items:
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- description: hub register (required)
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- description: core0 register (required)
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- description: GCA cache controller register (if GCA controller present)
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- description: bridge register (if no external reset controller)
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minItems: 2
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reg-names:
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items:
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- const: hub
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- const: core0
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- enum: [ bridge, gca ]
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- enum: [ bridge, gca ]
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minItems: 2
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maxItems: 4
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interrupts:
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items:
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- description: hub interrupt (required)
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- description: core interrupts (if it doesn't share the hub's interrupt)
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minItems: 1
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clocks:
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maxItems: 1
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resets:
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maxItems: 1
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power-domains:
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maxItems: 1
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required:
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- compatible
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- reg
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- reg-names
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- interrupts
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additionalProperties: false
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examples:
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- |
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gpu@f1200000 {
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compatible = "brcm,7268-v3d";
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reg = <0xf1200000 0x4000>,
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<0xf1208000 0x4000>,
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<0xf1204000 0x100>,
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<0xf1204100 0x100>;
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reg-names = "hub", "core0", "bridge", "gca";
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interrupts = <0 78 4>,
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<0 77 4>;
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};
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...
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