xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/i2c-imx-lpi2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale Low Power Inter IC (LPI2C) for i.MX

maintainers:
  - Anson Huang <Anson.Huang@nxp.com>

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

properties:
  compatible:
    oneOf:
      - enum:
          - fsl,imx7ulp-lpi2c
      - items:
          - enum:
              - fsl,imx8qxp-lpi2c
              - fsl,imx8dxl-lpi2c
              - fsl,imx8qm-lpi2c
              - fsl,imx8ulp-lpi2c
              - fsl,imx93-lpi2c
          - const: fsl,imx7ulp-lpi2c

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  assigned-clock-parents: true
  assigned-clock-rates: true
  assigned-clocks: true
  clock-frequency: true

  clock-names:
    items:
      - const: per
      - const: ipg

  clocks:
    maxItems: 2

  dmas:
    items:
      - description: DMA controller phandle and request line for TX
      - description: DMA controller phandle and request line for RX

  dma-names:
    items:
      - const: tx
      - const: rx

  power-domains:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts
  - clocks

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/imx7ulp-clock.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    i2c@40a50000 {
        compatible = "fsl,imx7ulp-lpi2c";
        reg = <0x40A50000 0x10000>;
        interrupt-parent = <&intc>;
        interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&clks IMX7ULP_CLK_LPI2C7>,
                 <&clks IMX7ULP_CLK_NIC1_BUS_DIV>;
    };