Documentation/devicetree/bindings/i2c/atmel,at91sam-i2c.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/i2c/atmel,at91sam-i2c.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/i2c/atmel,at91sam-i2c.yaml
Extension: .yaml
Size: 3577 bytes
Lines: 144
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/interrupt-controller/irq.h
dt-bindings/dma/at91.h
dt-bindings/gpio/gpio.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)
# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/atmel,at91sam-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: I2C for Atmel/Microchip platforms

maintainers:
  - Alexandre Belloni <alexandre.belloni@bootlin.com>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - atmel,at91rm9200-i2c
              - atmel,at91sam9261-i2c
              - atmel,at91sam9260-i2c
              - atmel,at91sam9g20-i2c
              - atmel,at91sam9g10-i2c
              - atmel,at91sam9x5-i2c
              - atmel,sama5d4-i2c
              - atmel,sama5d2-i2c
              - microchip,sam9x60-i2c
      - items:
          - enum:
              - microchip,lan9691-i2c
              - microchip,sama7d65-i2c
              - microchip,sama7g5-i2c
              - microchip,sam9x7-i2c
          - const: microchip,sam9x60-i2c

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-frequency:
    default: 100000

  dmas:
    items:
      - description: TX DMA Channel Specifier
      - description: RX DMA Channel Specifier

  dma-names:
    items:
      - const: tx
      - const: rx

  atmel,fifo-size:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: |
      Maximum number of data the RX and TX FIFOs can store for
      FIFO capable I2C controllers.

  scl-gpios: true

  sda-gpios: true

required:
  - compatible
  - reg
  - interrupts

Annotation

Immediate include surface: `dt-bindings/interrupt-controller/irq.h`, `dt-bindings/dma/at91.h`, `dt-bindings/gpio/gpio.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.