Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
Extension
.yaml
Size
2404 bytes
Lines
104
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/samsung,ld9040.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus

maintainers:
  - Andrzej Hajda <a.hajda@samsung.com>

allOf:
  - $ref: panel-common.yaml#
  - $ref: /schemas/spi/spi-peripheral-props.yaml#

properties:
  compatible:
    const: samsung,ld9040

  reg:
    maxItems: 1

  vdd3-supply:
    description: core voltage supply

  vci-supply:
    description: voltage supply for analog circuits

  power-on-delay:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: delay after turning regulators on [ms]

  reset-delay:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: delay after reset sequence [ms]

  panel-width-mm:
    description: physical panel width [mm]

  panel-height-mm:
    description: physical panel height [mm]

  spi-cpha: true
  spi-cpol: true

required:
  - compatible
  - reg
  - vdd3-supply
  - vci-supply
  - reset-gpios
  - display-timings

unevaluatedProperties: false

examples:
  - |
    spi {
        #address-cells = <1>;
        #size-cells = <0>;

        lcd@0 {
            compatible = "samsung,ld9040";

            reg = <0>;
            vdd3-supply = <&ldo7_reg>;
            vci-supply = <&ldo17_reg>;
            reset-gpios = <&gpy4 5 0>;
            spi-max-frequency = <1200000>;
            spi-cpol;

Annotation

Implementation Notes