xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.yaml

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

title: Freescale IRQSTEER Interrupt Multiplexer

maintainers:
  - Lucas Stach <l.stach@pengutronix.de>

properties:
  compatible:
    oneOf:
      - const: fsl,imx-irqsteer
      - items:
          - const: fsl,imx8m-irqsteer
          - const: fsl,imx-irqsteer

  reg:
    maxItems: 1

  interrupts:
    description: |
      should contain the up to 8 parent interrupt lines used to multiplex
      the input interrupts. They should be specified sequentially from
      output 0 to 7.
    items:
      - description: output interrupt 0
      - description: output interrupt 1
      - description: output interrupt 2
      - description: output interrupt 3
      - description: output interrupt 4
      - description: output interrupt 5
      - description: output interrupt 6
      - description: output interrupt 7
    minItems: 1
    maxItems: 8

  clocks:
    maxItems: 1

  clock-names:
    const: ipg

  interrupt-controller: true

  "#interrupt-cells":
    const: 1

  fsl,channel:
    $ref: '/schemas/types.yaml#/definitions/uint32'
    description: |
      u32 value representing the output channel that all input IRQs should be
      steered into.

  fsl,num-irqs:
    $ref: '/schemas/types.yaml#/definitions/uint32'
    description: |
      u32 value representing the number of input interrupts of this channel,
      should be multiple of 32 input interrupts and up to 512 interrupts.

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - interrupt-controller
  - "#interrupt-cells"
  - fsl,channel
  - fsl,num-irqs

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/imx8mq-clock.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    interrupt-controller@32e2d000 {
        compatible = "fsl,imx-irqsteer";
        reg = <0x32e2d000 0x1000>;
        interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>;
        clock-names = "ipg";
        fsl,channel = <0>;
        fsl,num-irqs = <64>;
        interrupt-controller;
        #interrupt-cells = <1>;
    };