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.

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/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

Implementation Notes