kernel-ark/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
Rob Herring b675542323 dt-bindings: display: Use OF graph schema
Now that we have a graph schema, rework the display related schemas to use
it. Mostly this is adding a reference to graph.yaml and dropping duplicate
parts from schemas.

In panel-common.yaml, 'ports' is dropped. Any binding using 'ports'
should be one with more than 1 port node, and the binding must define
what each port is.

Note that ti,sn65dsi86.yaml, ti,tfp410,yaml and toshiba,tc358768.yaml will
need further updates to use video-interfaces.yaml once that lands.

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210104180724.2275098-1-robh@kernel.org
2021-01-11 18:03:59 -06:00

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YAML

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-frontend.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Allwinner A10 Display Engine Frontend Device Tree Bindings
maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Maxime Ripard <mripard@kernel.org>
description: |
The display engine frontend does formats conversion, scaling,
deinterlacing and color space conversion.
properties:
compatible:
enum:
- allwinner,sun4i-a10-display-frontend
- allwinner,sun5i-a13-display-frontend
- allwinner,sun6i-a31-display-frontend
- allwinner,sun7i-a20-display-frontend
- allwinner,sun8i-a23-display-frontend
- allwinner,sun8i-a33-display-frontend
- allwinner,sun9i-a80-display-frontend
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: The frontend interface clock
- description: The frontend module clock
- description: The frontend DRAM clock
clock-names:
items:
- const: ahb
- const: mod
- const: ram
# FIXME: This should be made required eventually once every SoC will
# have the MBUS declared.
interconnects:
maxItems: 1
# FIXME: This should be made required eventually once every SoC will
# have the MBUS declared.
interconnect-names:
const: dma-mem
resets:
maxItems: 1
ports:
$ref: /schemas/graph.yaml#/properties/ports
properties:
port@0:
$ref: /schemas/graph.yaml#/properties/port
description: |
Input endpoints of the controller.
port@1:
$ref: /schemas/graph.yaml#/properties/port
description: |
Output endpoints of the controller.
required:
- port@1
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- resets
- ports
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/sun4i-a10-ccu.h>
#include <dt-bindings/reset/sun4i-a10-ccu.h>
fe0: display-frontend@1e00000 {
compatible = "allwinner,sun4i-a10-display-frontend";
reg = <0x01e00000 0x20000>;
interrupts = <47>;
clocks = <&ccu CLK_AHB_DE_FE0>, <&ccu CLK_DE_FE0>,
<&ccu CLK_DRAM_DE_FE0>;
clock-names = "ahb", "mod",
"ram";
resets = <&ccu RST_DE_FE0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
fe0_out: port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
fe0_out_be0: endpoint@0 {
reg = <0>;
remote-endpoint = <&be0_in_fe0>;
};
fe0_out_be1: endpoint@1 {
reg = <1>;
remote-endpoint = <&be1_in_fe0>;
};
};
};
};
...