Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml
Extension: .yaml
Size: 1459 bytes
Lines: 87
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

No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/allwinner,sun4i-a10-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A10 SPI Controller

allOf:
  - $ref: spi-controller.yaml

maintainers:
  - Chen-Yu Tsai <wens@csie.org>
  - Maxime Ripard <mripard@kernel.org>

properties:
  compatible:
    const: allwinner,sun4i-a10-spi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: Bus Clock
      - description: Module Clock

  clock-names:
    items:
      - const: ahb
      - const: mod

  dmas:
    items:
      - description: RX DMA Channel
      - description: TX DMA Channel

  dma-names:
    items:
      - const: rx
      - const: tx

patternProperties:
  "^.*@[0-9a-f]+":
    type: object
    additionalProperties: true

    properties:
      reg:
        items:
          minimum: 0
          maximum: 4

      spi-rx-bus-width:
        items:
          - const: 1

      spi-tx-bus-width:
        items:
          - const: 1

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

Annotation

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.