Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml

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

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
Extension: .yaml
Size: 3923 bytes
Lines: 154
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.

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

Dependency Surface

dt-bindings/clock/r8a77470-cpg-mssr.h
dt-bindings/interrupt-controller/arm-gic.h
dt-bindings/power/r8a77470-sysc.h

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

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

title: Renesas R-Car General-Purpose Input/Output Ports (GPIO)

maintainers:
  - Geert Uytterhoeven <geert+renesas@glider.be>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - renesas,gpio-r8a7778      # R-Car M1
              - renesas,gpio-r8a7779      # R-Car H1
          - const: renesas,rcar-gen1-gpio # R-Car Gen1

      - items:
          - enum:
              - renesas,gpio-r8a7742      # RZ/G1H
              - renesas,gpio-r8a7743      # RZ/G1M
              - renesas,gpio-r8a7744      # RZ/G1N
              - renesas,gpio-r8a7745      # RZ/G1E
              - renesas,gpio-r8a77470     # RZ/G1C
              - renesas,gpio-r8a7790      # R-Car H2
              - renesas,gpio-r8a7791      # R-Car M2-W
              - renesas,gpio-r8a7792      # R-Car V2H
              - renesas,gpio-r8a7793      # R-Car M2-N
              - renesas,gpio-r8a7794      # R-Car E2
          - const: renesas,rcar-gen2-gpio # R-Car Gen2 or RZ/G1

      - items:
          - enum:
              - renesas,gpio-r8a774a1     # RZ/G2M
              - renesas,gpio-r8a774b1     # RZ/G2N
              - renesas,gpio-r8a774c0     # RZ/G2E
              - renesas,gpio-r8a774e1     # RZ/G2H
              - renesas,gpio-r8a7795      # R-Car H3
              - renesas,gpio-r8a7796      # R-Car M3-W
              - renesas,gpio-r8a77961     # R-Car M3-W+
              - renesas,gpio-r8a77965     # R-Car M3-N
              - renesas,gpio-r8a77970     # R-Car V3M
              - renesas,gpio-r8a77980     # R-Car V3H
              - renesas,gpio-r8a77990     # R-Car E3
              - renesas,gpio-r8a77995     # R-Car D3
          - const: renesas,rcar-gen3-gpio # R-Car Gen3 or RZ/G2

      - items:
          - enum:
              - renesas,gpio-r8a779a0     # R-Car V3U
              - renesas,gpio-r8a779f0     # R-Car S4-8
              - renesas,gpio-r8a779g0     # R-Car V4H
              - renesas,gpio-r8a779h0     # R-Car V4M
          - const: renesas,rcar-gen4-gpio # R-Car Gen4

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  power-domains:
    maxItems: 1

Annotation

Immediate include surface: `dt-bindings/clock/r8a77470-cpg-mssr.h`, `dt-bindings/interrupt-controller/arm-gic.h`, `dt-bindings/power/r8a77470-sysc.h`.
Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.