Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml- Extension
.yaml- Size
- 2249 bytes
- Lines
- 104
- 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/imx7ulp-clock.hdt-bindings/interrupt-controller/arm-gic.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/spi/spi-fsl-lpspi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale Low Power SPI (LPSPI) for i.MX
maintainers:
- Shawn Guo <shawnguo@kernel.org>
- Sascha Hauer <s.hauer@pengutronix.de>
- Fabio Estevam <festevam@gmail.com>
allOf:
- $ref: /schemas/spi/spi-controller.yaml#
properties:
compatible:
oneOf:
- enum:
- fsl,imx7ulp-spi
- fsl,imx8qxp-spi
- nxp,s32g2-lpspi
- items:
- enum:
- fsl,imx8ulp-spi
- fsl,imx93-spi
- fsl,imx94-spi
- fsl,imx95-spi
- const: fsl,imx7ulp-spi
- items:
- const: nxp,s32g3-lpspi
- const: nxp,s32g2-lpspi
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: SoC SPI per clock
- description: SoC SPI ipg clock
clock-names:
items:
- const: per
- const: ipg
dmas:
items:
- description: TX DMA Channel
- description: RX DMA Channel
dma-names:
items:
- const: tx
- const: rx
fsl,spi-only-use-cs1-sel:
description:
spi common code does not support use of CS signals discontinuously.
i.MX8DXL-EVK board only uses CS1 without using CS0. Therefore, add
this property to re-config the chipselect value in the LPSPI driver.
type: boolean
num-cs:
description:
number of chip selects.
Annotation
- Immediate include surface: `dt-bindings/clock/imx7ulp-clock.h`, `dt-bindings/interrupt-controller/arm-gic.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.