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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 up to 8 parent interrupt lines used to
10 multiplex the input interrupts. They should be specified sequentially
11 from output 0 to 7.
12- clocks: Should contain one clock for entry in clock-names
13 see Documentation/devicetree/bindings/clock/clock-bindings.txt
14- clock-names:
15 - "ipg": main logic clock
16- interrupt-controller: Identifies the node as an interrupt controller.
17- #interrupt-cells: Specifies the number of cells needed to encode an
18 interrupt source. The value must be 1.
19- fsl,channel: The output channel that all input IRQs should be steered into.
20- fsl,num-irqs: Number of input interrupts of this channel.
21 Should be multiple of 32 input interrupts and up to 512 interrupts.
22
23Example:
24
25 interrupt-controller@32e2d000 {
26 compatible = "fsl,imx8m-irqsteer", "fsl,imx-irqsteer";
27 reg = <0x32e2d000 0x1000>;
28 interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
29 clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>;
30 clock-names = "ipg";
31 fsl,channel = <0>;
32 fsl,num-irqs = <64>;
33 interrupt-controller;
34 #interrupt-cells = <1>;
35 };