# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) # Copyright 2019 BayLibre, SAS %YAML 1.2 --- $id: http://devicetree.org/schemas/soc/amlogic/amlogic,canvas.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Amlogic Canvas Video Lookup Table maintainers: - Neil Armstrong - Maxime Jourdan description: | A canvas is a collection of metadata that describes a pixel buffer. Those metadata include: width, height, phyaddr, wrapping and block mode. Starting with GXBB the endianness can also be described. Many IPs within Amlogic SoCs rely on canvas indexes to read/write pixel data rather than use the phy addresses directly. For instance, this is the case for the video decoders and the display. Amlogic SoCs have 256 canvas. properties: compatible: oneOf: - items: - enum: - amlogic,meson8-canvas - amlogic,meson8b-canvas - amlogic,meson8m2-canvas - const: amlogic,canvas - const: amlogic,canvas # GXBB and newer SoCs reg: maxItems: 1 required: - compatible - reg additionalProperties: false examples: - | canvas: video-lut@48 { compatible = "amlogic,canvas"; reg = <0x48 0x14>; };