Documentation/devicetree/bindings/serial/renesas,scifb.yaml

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

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/serial/renesas,scifb.yaml
Extension: .yaml
Size: 2436 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.

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

Dependency Surface

dt-bindings/clock/r8a7740-clock.h
dt-bindings/interrupt-controller/arm-gic.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/serial/renesas,scifb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas Serial Communications Interface with FIFO B (SCIFB)

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

allOf:
  - $ref: serial.yaml#

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - renesas,scifb-r8a73a4      # R-Mobile APE6
              - renesas,scifb-r8a7740      # R-Mobile A1
              - renesas,scifb-sh73a0       # SH-Mobile AG5
          - const: renesas,scifb           # generic SCIFB compatible UART

      - items:
          - enum:
              - renesas,scifb-r8a7742      # RZ/G1H
              - renesas,scifb-r8a7743      # RZ/G1M
              - renesas,scifb-r8a7744      # RZ/G1N
              - renesas,scifb-r8a7745      # RZ/G1E
              - renesas,scifb-r8a7790      # R-Car H2
              - renesas,scifb-r8a7791      # R-Car M2-W
              - renesas,scifb-r8a7793      # R-Car M2-N
              - renesas,scifb-r8a7794      # R-Car E2
          - const: renesas,rcar-gen2-scifb # R-Car Gen2 and RZ/G1
          - const: renesas,scifb           # generic SCIFB compatible UART

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    enum:
      - fck # UART functional clock

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

  dmas:
    minItems: 2
    maxItems: 4
    description:
      Must contain a list of pairs of references to DMA specifiers, one for
      transmission, and one for reception.

  dma-names:
    minItems: 2
    maxItems: 4
    items:
      enum:
        - tx
        - rx

Annotation

Immediate include surface: `dt-bindings/clock/r8a7740-clock.h`, `dt-bindings/interrupt-controller/arm-gic.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.