Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml- Extension
.yaml- Size
- 1276 bytes
- Lines
- 69
- 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/clock/spacemit,k1-syscon.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/spacemit,k1-pdma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: SpacemiT K1 PDMA Controller
maintainers:
- Guodong Xu <guodong@riscstar.com>
allOf:
- $ref: dma-controller.yaml#
properties:
compatible:
const: spacemit,k1-pdma
reg:
maxItems: 1
interrupts:
description: Shared interrupt for all DMA channels
maxItems: 1
clocks:
maxItems: 1
resets:
maxItems: 1
dma-channels:
maximum: 16
'#dma-cells':
const: 1
description:
The DMA request number for the peripheral device.
required:
- compatible
- reg
- interrupts
- clocks
- resets
- dma-channels
- '#dma-cells'
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/spacemit,k1-syscon.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
dma-controller@d4000000 {
compatible = "spacemit,k1-pdma";
reg = <0x0 0xd4000000 0x0 0x4000>;
interrupts = <72>;
clocks = <&syscon_apmu CLK_DMA>;
resets = <&syscon_apmu RESET_DMA>;
dma-channels = <16>;
#dma-cells = <1>;
};
};
Annotation
- Immediate include surface: `dt-bindings/clock/spacemit,k1-syscon.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.