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dt-bindings: display: Convert ingenic,lcd.txt to YAML

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Convert the ingenic,lcd.txt to a new ingenic,lcd.yaml file.

In the process, the new ingenic,jz4780-lcd compatible string has been
added.

v2: Add info about IPU at port@8
v3: No change

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716163846.174790-2-paul@crapouillou.net
This commit is contained in:
Paul Cercueil 2020-07-16 18:38:36 +02:00
parent ca43f274e0
commit c939022824
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GPG Key ID: 73EE6BD2274ABD41
2 changed files with 126 additions and 45 deletions
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45
Documentation/devicetree/bindings/display/ingenic,lcd.txt
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Ingenic JZ47xx LCD driver
Required properties:
- compatible: one of:
* ingenic,jz4740-lcd
* ingenic,jz4725b-lcd
* ingenic,jz4770-lcd
- reg: LCD registers location and length
- clocks: LCD pixclock and device clock specifiers.
The device clock is only required on the JZ4740.
- clock-names: "lcd_pclk" and "lcd"
- interrupts: Specifies the interrupt line the LCD controller is connected to.
Example:
panel {
compatible = "sharp,ls020b1dd01d";
backlight = <&backlight>;
power-supply = <&vcc>;
port {
panel_input: endpoint {
remote-endpoint = <&panel_output>;
};
};
};
lcd: lcd-controller@13050000 {
compatible = "ingenic,jz4725b-lcd";
reg = <0x13050000 0x1000>;
interrupt-parent = <&intc>;
interrupts = <31>;
clocks = <&cgu JZ4725B_CLK_LCD>;
clock-names = "lcd";
port {
panel_output: endpoint {
remote-endpoint = <&panel_input>;
};
};
};

126
Documentation/devicetree/bindings/display/ingenic,lcd.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/ingenic,lcd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Ingenic SoCs LCD controller devicetree bindings
maintainers:
- Paul Cercueil <paul@crapouillou.net>
properties:
$nodename:
pattern: "^lcd-controller@[0-9a-f]+$"
compatible:
enum:
- ingenic,jz4740-lcd
- ingenic,jz4725b-lcd
- ingenic,jz4770-lcd
- ingenic,jz4780-lcd
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: Pixel clock
- description: Module clock
minItems: 1
clock-names:
items:
- const: lcd_pclk
- const: lcd
minItems: 1
port:
description: OF graph bindings (specified in bindings/graph.txt).
ports:
description: OF graph bindings (specified in bindings/graph.txt).
type: object
properties:
port@0:
type: object
description: DPI output, to interface with TFT panels.
port@8:
type: object
description: Link to the Image Processing Unit (IPU).
(See ingenic,ipu.yaml).
required:
- port@0
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
if:
properties:
compatible:
contains:
enum:
- ingenic,jz4740-lcd
- ingenic,jz4780-lcd
then:
properties:
clocks:
minItems: 2
clock-names:
minItems: 2
else:
properties:
clocks:
maxItems: 1
clock-names:
maxItems: 1
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/jz4740-cgu.h>
lcd-controller@13050000 {
compatible = "ingenic,jz4740-lcd";
reg = <0x13050000 0x1000>;
interrupt-parent = <&intc>;
interrupts = <30>;
clocks = <&cgu JZ4740_CLK_LCD_PCLK>, <&cgu JZ4740_CLK_LCD>;
clock-names = "lcd_pclk", "lcd";
port {
endpoint {
remote-endpoint = <&panel_input>;
};
};
};
- |
#include <dt-bindings/clock/jz4725b-cgu.h>
lcd-controller@13050000 {
compatible = "ingenic,jz4725b-lcd";
reg = <0x13050000 0x1000>;
interrupt-parent = <&intc>;
interrupts = <31>;
clocks = <&cgu JZ4725B_CLK_LCD>;
clock-names = "lcd_pclk";
port {
endpoint {
remote-endpoint = <&panel_input>;
};
};
};