Documentation/devicetree/bindings/eeprom/at24.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/eeprom/at24.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/eeprom/at24.yaml
Extension
.yaml
Size
6435 bytes
Lines
237
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
# Copyright 2019 BayLibre SAS
%YAML 1.2
---
$id: http://devicetree.org/schemas/eeprom/at24.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: I2C EEPROMs compatible with Atmel's AT24

maintainers:
  - Bartosz Golaszewski <bgolaszewski@baylibre.com>

allOf:
  - $ref: /schemas/nvmem/nvmem.yaml
  - $ref: /schemas/nvmem/nvmem-deprecated-cells.yaml

select:
  properties:
    compatible:
      contains:
        anyOf:
          - pattern: "^atmel,(24(c|cs|mac)[0-9]+|spd)$"
          - enum: ["microchip,24aa025e48", "microchip,24aa025e64"]
  required:
    - compatible

properties:
  $nodename:
    pattern: "^eeprom@[0-9a-f]{1,2}$"

  # There are multiple known vendors who manufacture EEPROM chips compatible
  # with Atmel's AT24. The compatible string requires either a single item
  # if the memory comes from Atmel (in which case the vendor part must be
  # 'atmel') or two items with the same 'model' part where the vendor part of
  # the first one is the actual manufacturer and the second item is the
  # corresponding 'atmel,<model>' from Atmel.
  compatible:
    oneOf:
      - allOf:
          - minItems: 1
            items:
              - pattern: "^(atmel|catalyst|microchip|nxp|ramtron|renesas|rohm|st),(24(c|cs|lc|mac)[0-9]+|spd)$"
              - pattern: "^atmel,(24(c|cs|mac)[0-9]+|spd)$"
          - oneOf:
              - items:
                  pattern: c00$
              - items:
                  pattern: c01$
              - items:
                  pattern: cs01$
              - items:
                  pattern: c02$
              - items:
                  pattern: cs02$
              - items:
                  pattern: mac402$
              - items:
                  pattern: mac602$
              - items:
                  pattern: c04$
              - items:
                  pattern: cs04$
              - items:
                  pattern: c08$
              - items:
                  pattern: cs08$
              - items:
                  pattern: c16$
              - items:
                  pattern: cs16$

Annotation

Implementation Notes