xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/ti,omap4-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: I2C controllers on TI's OMAP and K3 SoCs

maintainers:
  - Vignesh Raghavendra <vigneshr@ti.com>

properties:
  compatible:
    oneOf:
      - enum:
          - ti,omap2420-i2c
          - ti,omap2430-i2c
          - ti,omap3-i2c
          - ti,omap4-i2c
      - items:
          - enum:
              - ti,am4372-i2c
              - ti,am64-i2c
              - ti,am654-i2c
              - ti,j721e-i2c
          - const: ti,omap4-i2c

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    const: fck

  clock-frequency: true

  power-domains: true

  "#address-cells":
    const: 1

  "#size-cells":
    const: 0

  ti,hwmods:
    description:
      Must be "i2c<n>", n being the instance number (1-based).
      This property is applicable only on legacy platforms mainly omap2/3
      and ti81xx and should not be used on other platforms.
    $ref: /schemas/types.yaml#/definitions/string
    deprecated: true

# subnode's properties
patternProperties:
  "@[0-9a-f]+$":
    type: object
    description:
      Flash device uses the below defined properties in the subnode.

required:
  - compatible
  - reg
  - interrupts

additionalProperties: false

if:
  properties:
    compatible:
      enum:
        - ti,omap2420-i2c
        - ti,omap2430-i2c
        - ti,omap3-i2c
        - ti,omap4-i2c

then:
  properties:
    ti,hwmods:
      items:
        - pattern: "^i2c([1-9])$"

else:
  properties:
    ti,hwmods: false

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

    main_i2c0: i2c@2000000 {
            compatible = "ti,j721e-i2c", "ti,omap4-i2c";
            reg = <0x2000000 0x100>;
            interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>;
            #address-cells = <1>;
            #size-cells = <0>;
         };