Documentation/devicetree/bindings/display/arm,pl11x.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/display/arm,pl11x.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/display/arm,pl11x.yaml
Extension
.yaml
Size
4989 bytes
Lines
174
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-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/arm,pl11x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Arm PrimeCell Color LCD Controller PL110/PL111

maintainers:
  - Liviu Dudau <Liviu.Dudau@arm.com>
  - Andre Przywara <andre.przywara@arm.com>

description:
  The Arm Primcell PL010/PL111 is an LCD controller IP, than scans out
  a framebuffer region in system memory, and creates timed signals for
  a variety of LCD panels.

# We need a select here so we don't match all nodes with 'arm,primecell'
select:
  properties:
    compatible:
      contains:
        enum:
          - arm,pl110
          - arm,pl111
  required:
    - compatible

properties:
  compatible:
    items:
      - enum:
          - arm,pl110
          - arm,pl111
      - const: arm,primecell

  reg:
    maxItems: 1

  interrupt-names:
    oneOf:
      - const: combined
        description:
          The IP provides four individual interrupt lines, but also one
          combined line. If the integration only connects this line to the
          interrupt controller, this single interrupt is noted here.
      - items:
          - const: mbe        # CLCDMBEINTR
          - const: vcomp      # CLCDVCOMPINTR
          - const: lnbu       # CLCDLNBUINTR
          - const: fuf        # CLCDFUFINTR

  interrupts:
    minItems: 1
    maxItems: 4

  clock-names:
    items:
      - const: clcdclk
      - const: apb_pclk

  clocks:
    items:
      - description: The CLCDCLK reference clock for the controller.
      - description: The HCLK AHB slave clock for the register access.

  memory-region:
    maxItems: 1
    description:
      Phandle to a node describing memory to be used for the framebuffer.

Annotation

Implementation Notes