linux-stable/Documentation/devicetree/bindings/display/sitronix,st7735r.yaml
Sam Ravnborg c2d4290ba0 dt-bindings: restrict properties for sitronix,st7735r
David Lechner noticed (paraphrased):
- not all properties from panel-common are applicable.
- missing optional rotation and backlight properties

Fix this by listing all allowed properties,
and do not allow other properties.

Fixes: abdd9e3705 ("dt-bindings: display: sitronix,st7735r: Convert to DT schema")
Reported-by: David Lechner <david@lechnology.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Cc: David Lechner <david@lechnology.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200120190249.GA9619@ravnborg.org
2020-01-23 19:16:36 +01:00

78 lines
1.8 KiB
YAML

# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/sitronix,st7735r.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Sitronix ST7735R Display Panels Device Tree Bindings
maintainers:
- David Lechner <david@lechnology.com>
description:
This binding is for display panels using a Sitronix ST7715R or ST7735R
controller in SPI mode.
allOf:
- $ref: panel/panel-common.yaml#
properties:
compatible:
oneOf:
- description:
Adafruit 1.8" 160x128 Color TFT LCD (Product ID 358 or 618)
items:
- enum:
- jianda,jd-t18003-t01
- const: sitronix,st7735r
- description:
Okaya 1.44" 128x128 Color TFT LCD (E.g. Renesas YRSK-LCD-PMOD)
items:
- enum:
- okaya,rh128128t
- const: sitronix,st7715r
spi-max-frequency:
maximum: 32000000
dc-gpios:
maxItems: 1
description: Display data/command selection (D/CX)
backlight: true
reg: true
reset-gpios: true
rotation: true
required:
- compatible
- reg
- dc-gpios
- reset-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
backlight: backlight {
compatible = "gpio-backlight";
gpios = <&gpio 44 GPIO_ACTIVE_HIGH>;
};
spi {
#address-cells = <1>;
#size-cells = <0>;
display@0{
compatible = "jianda,jd-t18003-t01", "sitronix,st7735r";
reg = <0>;
spi-max-frequency = <32000000>;
dc-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
rotation = <270>;
};
};
...