Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
Extension
.yaml
Size
4441 bytes
Lines
176
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
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/snps,designware-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Synopsys DesignWare APB I2C Controller

maintainers:
  - Mika Westerberg <mika.westerberg@linux.intel.com>

allOf:
  - $ref: /schemas/i2c/i2c-controller.yaml#
  - if:
      properties:
        compatible:
          not:
            contains:
              const: mscc,ocelot-i2c
    then:
      properties:
        reg:
          maxItems: 1

properties:
  compatible:
    oneOf:
      - description: Generic Synopsys DesignWare I2C controller
        const: snps,designware-i2c
      - description: Renesas RZ/N1D I2C controller
        items:
          - const: renesas,r9a06g032-i2c  # RZ/N1D
          - const: renesas,rzn1-i2c       # RZ/N1
          - const: snps,designware-i2c
      - description: Mobileye EyeQ DesignWare I2C controller
        items:
          - enum:
              - mobileye,eyeq7h-i2c
          - const: mobileye,eyeq6lplus-i2c
          - const: snps,designware-i2c
      - items:
          - enum:
              - mobileye,eyeq6lplus-i2c
              - mscc,ocelot-i2c
              - sophgo,sg2044-i2c
              - thead,th1520-i2c
          - const: snps,designware-i2c

  reg:
    minItems: 1
    items:
      - description: DW APB I2C controller memory mapped registers
      - description: |
          ICPU_CFG:TWI_DELAY registers to setup the SDA hold time.
          This registers are specific to the Ocelot I2C-controller.

  interrupts:
    maxItems: 1

  clocks:
    minItems: 1
    items:
      - description: I2C controller reference clock source
      - description: APB interface clock source

  clock-names:
    minItems: 1
    items:
      - const: ref
      - const: pclk

Annotation

Implementation Notes