Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
Extension
.yaml
Size
3581 bytes
Lines
119
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/nvidia,tegra186-gpc-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NVIDIA Tegra GPC DMA Controller

description: |
  The Tegra General Purpose Central (GPC) DMA controller is used for faster
  data transfers between memory to memory, memory to device and device to
  memory.

maintainers:
  - Jon Hunter <jonathanh@nvidia.com>
  - Rajesh Gumasta <rgumasta@nvidia.com>

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

properties:
  compatible:
    oneOf:
      - const: nvidia,tegra186-gpcdma
      - items:
          - enum:
              - nvidia,tegra264-gpcdma
              - nvidia,tegra234-gpcdma
              - nvidia,tegra194-gpcdma
          - const: nvidia,tegra186-gpcdma

  "#dma-cells":
    const: 1

  reg:
    maxItems: 1

  interrupts:
    description:
      Should contain all of the per-channel DMA interrupts in
      ascending order with respect to the DMA channel index.
    minItems: 1
    maxItems: 32

  resets:
    maxItems: 1

  reset-names:
    const: gpcdma

  iommus:
    maxItems: 1

  dma-coherent: true

  dma-channel-mask:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts
  - resets
  - reset-names
  - "#dma-cells"
  - iommus
  - dma-channel-mask

additionalProperties: false

Annotation

Implementation Notes