xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/renesas,rzv2m.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas RZ/V2M I2C Bus Interface

maintainers:
  - Fabrizio Castro <fabrizio.castro.jz@renesas.com>

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

properties:
  compatible:
    items:
      - enum:
          - renesas,r9a09g011-i2c  # RZ/V2M
      - const: renesas,rzv2m-i2c

  reg:
    maxItems: 1

  interrupts:
    items:
      - description: Data transmission/reception interrupt
      - description: Status interrupt

  interrupt-names:
    items:
      - const: tia
      - const: tis

  clock-frequency:
    default: 100000
    enum: [ 100000, 400000 ]
    description:
      Desired I2C bus clock frequency in Hz.

  clocks:
    maxItems: 1

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts
  - interrupt-names
  - clocks
  - power-domains
  - resets
  - '#address-cells'
  - '#size-cells'

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/r9a09g011-cpg.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    i2c0: i2c@a4030000 {
        compatible = "renesas,r9a09g011-i2c", "renesas,rzv2m-i2c";
        reg = <0xa4030000 0x80>;
        interrupts = <GIC_SPI 232 IRQ_TYPE_EDGE_RISING>,
                     <GIC_SPI 236 IRQ_TYPE_EDGE_RISING>;
        interrupt-names = "tia", "tis";
        clocks = <&cpg CPG_MOD R9A09G011_IIC_PCLK0>;
        resets = <&cpg R9A09G011_IIC_GPA_PRESETN>;
        power-domains = <&cpg>;
        clock-frequency = <100000>;
        #address-cells = <1>;
        #size-cells = <0>;
    };