xref: /openbmc/linux/Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml (revision 00386171)

# 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) Device Tree Bindings

maintainers:
  - Chen-Yu Tsai <wens@csie.org>
  - Maxime Ripard <maxime.ripard@bootlin.com>

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

# FIXME: We should set it, but it would report all the generic
# properties as additional properties.
# additionalProperties: 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>;
        };
    };

...