Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.yaml
Extension
.yaml
Size
2836 bytes
Lines
121
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

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/brcm,bcm2835-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Broadcom BCM2835 GPIO (and pinmux) controller

maintainers:
  - Florian Fainelli <f.fainelli@gmail.com>

description: >
  The BCM2835 GPIO module is a combined GPIO controller, (GPIO) interrupt
  controller, and pinmux/control device.

properties:
  compatible:
    enum:
      - brcm,bcm2835-gpio
      - brcm,bcm2711-gpio
      - brcm,bcm7211-gpio

  reg:
    maxItems: 1

  '#gpio-cells':
    const: 2

  gpio-controller: true
  gpio-ranges: true
  gpio-line-names: true

  interrupts:
    description: >
      Interrupt outputs: one per bank, then the combined “all banks” line.
      BCM7211 may specify up to four per-bank wake-up lines and one combined
      wake-up interrupt.
    minItems: 4
    maxItems: 10

  '#interrupt-cells':
    const: 2

  interrupt-controller: true

additionalProperties:
  oneOf:
    - type: object
      additionalProperties: false

      patternProperties:
        '^pins?-':
          type: object
          allOf:
            - $ref: /schemas/pinctrl/pincfg-node.yaml#
            - $ref: /schemas/pinctrl/pinmux-node.yaml#
          additionalProperties: false

          properties:
            pins: true
            function: true
            bias-disable: true
            bias-pull-up: true
            bias-pull-down: true
            output-high: true
            output-low: true

          required:
            - pins
            - function

Annotation

Implementation Notes