Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.yaml
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.yaml
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/dma/nvidia,tegra20-apbdma.yaml- Extension
.yaml- Size
- 2724 bytes
- Lines
- 101
- 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/interrupt-controller/arm-gic.hdt-bindings/reset/tegra186-reset.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)
%YAML 1.2
---
$id: http://devicetree.org/schemas/dma/nvidia,tegra20-apbdma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NVIDIA Tegra APB DMA Controller
description:
The NVIDIA Tegra APB DMA controller is a hardware component that
enables direct memory access (DMA) on Tegra systems. It facilitates
data transfer between I/O devices and main memory without constant
CPU intervention.
maintainers:
- Jonathan Hunter <jonathanh@nvidia.com>
properties:
compatible:
oneOf:
- enum:
- nvidia,tegra114-apbdma
- nvidia,tegra20-apbdma
- items:
- const: nvidia,tegra30-apbdma
- const: nvidia,tegra20-apbdma
- items:
- enum:
- nvidia,tegra124-apbdma
- nvidia,tegra210-apbdma
- const: nvidia,tegra148-apbdma
reg:
maxItems: 1
"#dma-cells":
const: 1
clocks:
maxItems: 1
clock-names:
const: dma
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: dma
required:
- compatible
- reg
- "#dma-cells"
- clocks
- interrupts
- resets
- reset-names
allOf:
- $ref: dma-controller.yaml#
unevaluatedProperties: false
Annotation
- Immediate include surface: `dt-bindings/interrupt-controller/arm-gic.h`, `dt-bindings/reset/tegra186-reset.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.