# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2019 BayLibre, SAS
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/soc/amlogic/amlogic,canvas.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Amlogic Canvas Video Lookup Table
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maintainers:
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- Neil Armstrong <narmstrong@baylibre.com>
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- Maxime Jourdan <mjourdan@baylibre.com>
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description: |
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A canvas is a collection of metadata that describes a pixel buffer.
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Those metadata include: width, height, phyaddr, wrapping and block mode.
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Starting with GXBB the endianness can also be described.
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Many IPs within Amlogic SoCs rely on canvas indexes to read/write pixel data
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rather than use the phy addresses directly. For instance, this is the case for
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the video decoders and the display.
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Amlogic SoCs have 256 canvas.
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- amlogic,meson8-canvas
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- amlogic,meson8b-canvas
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- amlogic,meson8m2-canvas
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- const: amlogic,canvas
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- const: amlogic,canvas # GXBB and newer SoCs
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reg:
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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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additionalProperties: false
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examples:
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- |
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canvas: video-lut@48 {
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compatible = "amlogic,canvas";
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reg = <0x48 0x14>;
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};
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