Documentation/devicetree/bindings/gpio/sifive,gpio.yaml

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

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
Extension
.yaml
Size
1870 bytes
Lines
94
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 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/sifive,gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: SiFive GPIO controller

maintainers:
  - Paul Walmsley <paul.walmsley@sifive.com>

properties:
  compatible:
    items:
      - enum:
          - sifive,fu540-c000-gpio
          - sifive,fu740-c000-gpio
          - canaan,k210-gpiohs
      - const: sifive,gpio0

  reg:
    maxItems: 1

  interrupts:
    description:
      Interrupt mapping, one per GPIO. Maximum 32 GPIOs.
    minItems: 1
    maxItems: 32

  interrupt-controller: true

  "#interrupt-cells":
    const: 2

  clocks:
    maxItems: 1

  "#gpio-cells":
    const: 2

  ngpios:
    description:
      The number of GPIOs available on the controller implementation.
      It is 16 for the SiFive SoCs and 32 for the Canaan K210.
    minimum: 1
    maximum: 32
    default: 16

  gpio-line-names:
    minItems: 1
    maxItems: 32

  gpio-controller: true

required:
  - compatible
  - reg
  - interrupts
  - interrupt-controller
  - "#interrupt-cells"
  - "#gpio-cells"
  - gpio-controller

if:
  properties:
    compatible:
      contains:
        enum:
          - sifive,fu540-c000-gpio
          - sifive,fu740-c000-gpio

Annotation

Implementation Notes