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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/sitronix,st7571.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Sitronix ST7571 Display Controller
maintainers:
- Marcus Folkesson <marcus.folkesson@gmail.com>
description:
Sitronix ST7571 is a driver and controller for 4-level gray
scale and monochrome dot matrix LCD panels.
allOf:
- $ref: panel/panel-common.yaml#
properties:
compatible:
const: sitronix,st7571
reg:
maxItems: 1
sitronix,grayscale:
type: boolean
description:
Display supports 4-level grayscale.
reset-gpios: true
width-mm: true
height-mm: true
panel-timing: true
required:
- compatible
- reg
- reset-gpios
- width-mm
- height-mm
- panel-timing
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
display@3f {
compatible = "sitronix,st7571";
reg = <0x3f>;
reset-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
width-mm = <37>;
height-mm = <27>;
panel-timing {
hactive = <128>;
vactive = <96>;
hback-porch = <0>;
vback-porch = <0>;
clock-frequency = <0>;
hfront-porch = <0>;
hsync-len = <0>;
vfront-porch = <0>;
vsync-len = <0>;
};
};
};
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