Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml- Extension
.yaml- Size
- 2343 bytes
- Lines
- 106
- 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/spi/adi,axi-spi-engine.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AXI SPI Engine Controller
description: |
The AXI SPI Engine controller is part of the SPI Engine framework[1] and
allows memory mapped access to the SPI Engine control bus. This allows it
to be used as a general purpose software driven SPI controller as well as
some optional advanced acceleration and offloading capabilities.
[1] https://wiki.analog.com/resources/fpga/peripherals/spi_engine
maintainers:
- Michael Hennerich <Michael.Hennerich@analog.com>
- Nuno Sá <nuno.sa@analog.com>
allOf:
- $ref: /schemas/spi/spi-controller.yaml#
properties:
compatible:
const: adi,axi-spi-engine-1.00.a
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: The AXI interconnect clock.
- description: The SPI controller clock.
clock-names:
items:
- const: s_axi_aclk
- const: spi_clk
trigger-sources:
description:
An array of trigger source phandles for offload instances. The index in
the array corresponds to the offload instance number.
minItems: 1
maxItems: 32
dmas:
description:
DMA channels connected to the input or output stream interface of an
offload instance.
minItems: 1
maxItems: 32
dma-names:
items:
pattern: "^offload(?:[12]?[0-9]|3[01])-[tr]x$"
minItems: 1
maxItems: 32
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
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.