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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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dt-bindings: display: sitronix,st7920: Add DT schema
Add binding for Sitronix ST7920 display.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patch.msgid.link/20251215-st7920-v7-1-36771009ec01@gmail.com
authored by
Iker Pedrosa
and committed by
Javier Martinez Canillas
549cf05a
e7a943f0
+58
+58
Documentation/devicetree/bindings/display/sitronix,st7920.yaml
+58
Documentation/devicetree/bindings/display/sitronix,st7920.yaml
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# 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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$id: http://devicetree.org/schemas/display/sitronix,st7920.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Sitronix ST7920 LCD Display Controllers
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maintainers:
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- Iker Pedrosa <ikerpedrosam@gmail.com>
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description:
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The Sitronix ST7920 is a controller for monochrome dot-matrix graphical LCDs,
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most commonly used for 128x64 pixel displays.
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properties:
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compatible:
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const: sitronix,st7920
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reg:
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maxItems: 1
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vdd-supply:
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description: Regulator that provides 5V Vdd power supply
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reset-gpios:
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maxItems: 1
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spi-max-frequency:
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maximum: 600000
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required:
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- compatible
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- reg
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- spi-max-frequency
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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display@0 {
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compatible = "sitronix,st7920";
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reg = <0>;
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vdd-supply = <®_5v>;
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reset-gpios = <&gpio 25 GPIO_ACTIVE_LOW>;
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spi-max-frequency = <600000>;
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spi-cs-high;
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};
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};