Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml
Extension
.yaml
Size
1132 bytes
Lines
64
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
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/allwinner,sun6i-a31-p2wi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A31 P2WI (Push/Pull 2 Wires Interface)

maintainers:
  - Chen-Yu Tsai <wens@csie.org>
  - Maxime Ripard <mripard@kernel.org>

allOf:
  - $ref: /schemas/i2c/i2c-controller.yaml#

properties:
  compatible:
    const: allwinner,sun6i-a31-p2wi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  resets:
    maxItems: 1

  clock-frequency:
    minimum: 1
    maximum: 6000000

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - resets

unevaluatedProperties: false

examples:
  - |
    i2c@1f03400 {
        compatible = "allwinner,sun6i-a31-p2wi";
        reg = <0x01f03400 0x400>;
        interrupts = <0 39 4>;
        clocks = <&apb0_gates 3>;
        clock-frequency = <100000>;
        resets = <&apb0_rst 3>;
        #address-cells = <1>;
        #size-cells = <0>;

        axp221: pmic@68 {
            /* compatible = "x-powers,axp221"; */
            reg = <0x68>;
        };
    };

...

Annotation

Implementation Notes