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1Freescale IRQSTEER Interrupt multiplexer
2
3Required properties:
4
5- compatible: should be:
6 - "fsl,imx8m-irqsteer"
7 - "fsl,imx-irqsteer"
8- reg: Physical base address and size of registers.
9- interrupts: Should contain the parent interrupt line used to multiplex the
10 input interrupts.
11- clocks: Should contain one clock for entry in clock-names
12 see Documentation/devicetree/bindings/clock/clock-bindings.txt
13- clock-names:
14 - "ipg": main logic clock
15- interrupt-controller: Identifies the node as an interrupt controller.
16- #interrupt-cells: Specifies the number of cells needed to encode an
17 interrupt source. The value must be 1.
18- fsl,channel: The output channel that all input IRQs should be steered into.
19- fsl,irq-groups: Number of IRQ groups managed by this controller instance.
20 Each group manages 64 input interrupts.
21
22Example:
23
24 interrupt-controller@32e2d000 {
25 compatible = "fsl,imx8m-irqsteer", "fsl,imx-irqsteer";
26 reg = <0x32e2d000 0x1000>;
27 interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
28 clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>;
29 clock-names = "ipg";
30 fsl,channel = <0>;
31 fsl,irq-groups = <1>;
32 interrupt-controller;
33 #interrupt-cells = <1>;
34 };