Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml
Extension
.yaml
Size
1959 bytes
Lines
85
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/cirrus,ep9301-dma-m2m.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Cirrus Logic ep93xx SoC DMA controller

maintainers:
  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
  - Nikita Shubin <nikita.shubin@maquefel.me>

allOf:
  - $ref: dma-controller.yaml#

properties:
  compatible:
    oneOf:
      - const: cirrus,ep9301-dma-m2m
      - items:
          - enum:
              - cirrus,ep9302-dma-m2m
              - cirrus,ep9307-dma-m2m
              - cirrus,ep9312-dma-m2m
              - cirrus,ep9315-dma-m2m
          - const: cirrus,ep9301-dma-m2m

  reg:
    items:
      - description: m2m0 channel registers
      - description: m2m1 channel registers

  clocks:
    items:
      - description: m2m0 channel gate clock
      - description: m2m1 channel gate clock

  clock-names:
    items:
      - const: m2m0
      - const: m2m1

  interrupts:
    items:
      - description: m2m0 channel interrupt
      - description: m2m1 channel interrupt

  '#dma-cells':
    const: 2
    description: |
      The first cell is the unique device channel number as indicated by this
      table for ep93xx:

      10: SPI controller
      11: IDE controller

      The second cell is the DMA direction line number:

      1: Memory to device
      2: Device to memory

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

additionalProperties: false

Annotation

Implementation Notes