Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml
Extension: .yaml
Size: 1623 bytes
Lines: 86
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/marvell,mmp2.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)
# Copyright 2019,2020 Lubomir Rintel <lkundrak@v3.sk>
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/marvell,mmp2-ssp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: PXA2xx SSP SPI Controller

maintainers:
  - Lubomir Rintel <lkundrak@v3.sk>

properties:
  compatible:
    enum:
      - marvell,mmp2-ssp
      - mrvl,ce4100-ssp
      - mvrl,pxa168-ssp
      - mrvl,pxa25x-ssp
      - mvrl,pxa25x-nssp
      - mrvl,pxa27x-ssp
      - mrvl,pxa3xx-ssp
      - mrvl,pxa910-ssp

  interrupts:
    maxItems: 1

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  dmas:
    items:
      - description: Receive DMA
      - description: Transmit DMA

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

  ready-gpios:
    description: |
      GPIO used to signal a SPI master that the FIFO is filled and we're
      ready to service a transfer. Only useful in slave mode.
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts
  - clocks

dependencies:
  ready-gpios: [ spi-slave ]

allOf:
  - $ref: spi-controller.yaml#
  - if:
      properties:
        compatible:
          contains:
            const: marvell,mmp2-ssp
    then:
      properties:
        dmas: false
        dma-names: false

Annotation

Immediate include surface: `dt-bindings/clock/marvell,mmp2.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.