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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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cb2c4d734b
Sitronix ST7571 is a dot matrix LCD controller supporting both 4bit grayscale and monochrome LCDs. Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Link: https://lore.kernel.org/r/20250423-st7571-v6-1-e9519e3c4ec4@gmail.com Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
74 lines
1.4 KiB
YAML
74 lines
1.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/sitronix,st7571.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Sitronix ST7571 Display Controller
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maintainers:
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- Marcus Folkesson <marcus.folkesson@gmail.com>
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description:
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Sitronix ST7571 is a driver and controller for 4-level gray
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scale and monochrome dot matrix LCD panels.
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allOf:
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- $ref: panel/panel-common.yaml#
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properties:
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compatible:
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const: sitronix,st7571
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reg:
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maxItems: 1
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sitronix,grayscale:
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type: boolean
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description:
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Display supports 4-level grayscale.
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reset-gpios: true
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width-mm: true
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height-mm: true
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panel-timing: true
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required:
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- compatible
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- reg
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- reset-gpios
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- width-mm
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- height-mm
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- panel-timing
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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display@3f {
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compatible = "sitronix,st7571";
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reg = <0x3f>;
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reset-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
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width-mm = <37>;
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height-mm = <27>;
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panel-timing {
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hactive = <128>;
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vactive = <96>;
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hback-porch = <0>;
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vback-porch = <0>;
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clock-frequency = <0>;
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hfront-porch = <0>;
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hsync-len = <0>;
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vfront-porch = <0>;
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vsync-len = <0>;
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};
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};
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};
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