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The purpose of common schemas, like panel-common.yaml, is to list applicable properties. It can list common ABI, e.g. "label" property, and pure hardware related properties like power supply or GPIOs. In the second case it means that all panels have these supplies or GPIOs. This is the only meaning when hardware property is allowed in common schema, because bindings are precise and we do not define common schemas for "possible" hardware configurations. Following this, all panel bindings which reference common schema and use "unevaluatedProperties: false" do not need to list these common parts. Simplify such bindings to also reduce copy-paste code and review time for new contributions. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20260306-dt-bindings-display-panel-clean-v1-3-3086eda1efaf@oss.qualcomm.com
94 lines
2.3 KiB
YAML
94 lines
2.3 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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$id: http://devicetree.org/schemas/display/panel/samsung,lms380kf01.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung LMS380KF01 display panel
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description: The LMS380KF01 is a 480x800 DPI display panel from Samsung Mobile
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Displays (SMD) utilizing the WideChips WS2401 display controller. It can be
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used with internal or external backlight control.
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maintainers:
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- Linus Walleij <linusw@kernel.org>
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allOf:
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- $ref: panel-common.yaml#
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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properties:
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compatible:
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const: samsung,lms380kf01
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reg:
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maxItems: 1
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interrupts:
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description: provides an optional ESD (electrostatic discharge)
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interrupt that signals abnormalities in the display hardware.
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This can also be raised for other reasons like erroneous
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configuration.
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maxItems: 1
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vci-supply:
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description: regulator that supplies the VCI analog voltage
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usually around 3.0 V
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vccio-supply:
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description: regulator that supplies the VCCIO voltage usually
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around 1.8 V
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spi-cpha: true
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spi-cpol: true
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spi-max-frequency:
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maximum: 1200000
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required:
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- compatible
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- reg
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- spi-cpha
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- spi-cpol
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- port
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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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#include <dt-bindings/interrupt-controller/irq.h>
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spi {
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compatible = "spi-gpio";
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sck-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
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miso-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio 3 GPIO_ACTIVE_HIGH>;
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num-chipselects = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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panel@0 {
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compatible = "samsung,lms380kf01";
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spi-max-frequency = <1200000>;
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spi-cpha;
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spi-cpol;
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reg = <0>;
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vci-supply = <&lcd_3v0_reg>;
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vccio-supply = <&lcd_1v8_reg>;
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reset-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
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interrupt-parent = <&gpio>;
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interrupts = <5 IRQ_TYPE_EDGE_RISING>;
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port {
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panel_in: endpoint {
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remote-endpoint = <&display_out>;
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};
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};
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};
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};
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...
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