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dt-bindings: display: convert ilitek,ili9322 to DT Schema 

The .txt binding explains:

"
    The following optional properties only apply to
    RGB and YUV input modes and
    can be omitted for BT.656 input modes:
"

This constraint is not implmented in the DT Schema.

The original binding from the .txt file referenced
properties that is included in panel-timing.yaml.

The properties in question are:
  - pixelclk-active
  - de-active
  - hsync-active
  - vsync-active

These properties was dropped in the conversion as they are not relevant.

v2:
  - drop properties from panel-timing (Linus)
  - drop use of spi-slave.yaml (Maxime)
  - introduce unevaluatedProperties (Maxime)
  - dropped unused properties (Linus)
  - delete stray spaces

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408195109.32692-8-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg 2020-04-08 21:50:40 +02:00
parent c1eb28405d
commit 66e3377c7c
2 changed files with 71 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
Documentation/devicetree/bindings/display/panel/ilitek,ili9322.txt
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@ -1,49 +0,0 @@
Ilitek ILI9322 TFT panel driver with SPI control bus
This is a driver for 320x240 TFT panels, accepting a variety of input
streams that get adapted and scaled to the panel. The panel output has
960 TFT source driver pins and 240 TFT gate driver pins, VCOM, VCOML and
VCOMH outputs.
Required properties:
- compatible: "dlink,dir-685-panel", "ilitek,ili9322"
(full system-specific compatible is always required to look up configuration)
- reg: address of the panel on the SPI bus
Optional properties:
- vcc-supply: core voltage supply, see regulator/regulator.txt
- iovcc-supply: voltage supply for the interface input/output signals,
see regulator/regulator.txt
- vci-supply: voltage supply for analog parts, see regulator/regulator.txt
- reset-gpios: a GPIO spec for the reset pin, see gpio/gpio.txt
The following optional properties only apply to RGB and YUV input modes and
can be omitted for BT.656 input modes:
- pixelclk-active: see display/panel/display-timing.txt
- de-active: see display/panel/display-timing.txt
- hsync-active: see display/panel/display-timing.txt
- vsync-active: see display/panel/display-timing.txt
The panel must obey the rules for a SPI slave device as specified in
spi/spi-bus.txt
The device node can contain one 'port' child node with one child
'endpoint' node, according to the bindings defined in
media/video-interfaces.txt. This node should describe panel's video bus.
Example:
panel: display@0 {
compatible = "dlink,dir-685-panel", "ilitek,ili9322";
reg = <0>;
vcc-supply = <&vdisp>;
iovcc-supply = <&vdisp>;
vci-supply = <&vdisp>;
port {
panel_in: endpoint {
remote-endpoint = <&display_out>;
};
};
};

71
Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml Normal file
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@ -0,0 +1,71 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/ilitek,ili9322.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Ilitek ILI9322 TFT panel driver with SPI control bus
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
description: |
This is a driver for 320x240 TFT panels, accepting a variety of input
streams that get adapted and scaled to the panel. The panel output has
960 TFT source driver pins and 240 TFT gate driver pins, VCOM, VCOML and
VCOMH outputs.
The panel must obey the rules for a SPI slave device as specified in
spi/spi-controller.yaml
allOf:
- $ref: panel-common.yaml#
properties:
compatible:
items:
- enum:
- dlink,dir-685-panel
- const: ilitek,ili9322
reset-gpios: true
port: true
vcc-supply:
description: Core voltage supply
iovcc-supply:
description: Voltage supply for the interface input/output signals
vci-supply:
description: Voltage supply for analog parts
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
panel: display@0 {
compatible = "dlink,dir-685-panel", "ilitek,ili9322";
reg = <0>;
vcc-supply = <&vdisp>;
iovcc-supply = <&vdisp>;
vci-supply = <&vdisp>;
port {
panel_in: endpoint {
remote-endpoint = <&display_out>;
};
};
};
};
...