Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
Extension: .yaml
Size: 3660 bytes
Lines: 152
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-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX

maintainers:
  - Joy Zou <joy.zou@nxp.com>

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

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - fsl,imx50-sdma
              - fsl,imx51-sdma
              - fsl,imx53-sdma
              - fsl,imx6q-sdma
              - fsl,imx7d-sdma
          - const: fsl,imx35-sdma
      - items:
          - enum:
              - fsl,imx6sx-sdma
              - fsl,imx6sl-sdma
          - const: fsl,imx6q-sdma
      - items:
          - const: fsl,imx6ul-sdma
          - const: fsl,imx6q-sdma
          - const: fsl,imx35-sdma
      - items:
          - const: fsl,imx6sll-sdma
          - const: fsl,imx6ul-sdma
      - items:
          - const: fsl,imx8mq-sdma
          - const: fsl,imx7d-sdma
      - items:
          - enum:
              - fsl,imx8mp-sdma
              - fsl,imx8mn-sdma
              - fsl,imx8mm-sdma
          - const: fsl,imx8mq-sdma
      - items:
          - enum:
              - fsl,imx25-sdma
              - fsl,imx31-sdma
              - fsl,imx35-sdma
  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  fsl,sdma-ram-script-name:
    $ref: /schemas/types.yaml#/definitions/string
    description: Should contain the full path of SDMA RAM scripts firmware.

  "#dma-cells":
    const: 3
    description: |
      The first cell: request/event ID

      The second cell: peripheral types ID
        enum:
          - MCU domain SSI: 0
          - Shared SSI: 1

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.