Documentation/devicetree/bindings/dma/marvell,mmp-dma.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/marvell,mmp-dma.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/dma/marvell,mmp-dma.yaml
Extension
.yaml
Size
1391 bytes
Lines
73
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-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/dma/marvell,mmp-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Marvell MMP DMA controller

maintainers:
  - Duje Mihanović <duje.mihanovic@skole.hr>

description:
  Marvell MMP SoCs may have two types of DMA controllers, peripheral and audio.

properties:
  compatible:
    enum:
      - marvell,pdma-1.0
      - marvell,adma-1.0
      - marvell,pxa910-squ

  reg:
    maxItems: 1

  interrupts:
    description:
      Interrupt lines for the controller, may be shared or one per DMA channel
    minItems: 1

  asram:
    description:
      A phandle to the SRAM pool
    $ref: /schemas/types.yaml#/definitions/phandle

  '#dma-channels':
    deprecated: true

  '#dma-requests':
    deprecated: true

required:
  - compatible
  - reg
  - interrupts
  - '#dma-cells'

allOf:
  - $ref: dma-controller.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - marvell,pdma-1.0
    then:
      properties:
        asram: false
    else:
      required:
        - asram

unevaluatedProperties: false

examples:
  - |
    dma-controller@d4000000 {
        compatible = "marvell,pdma-1.0";
        reg = <0xd4000000 0x10000>;
        interrupts = <47>;
        #dma-cells = <2>;

Annotation

Implementation Notes