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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt')
-rw-r--r-- | Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt new file mode 100644 index 000000000000..582991c426ee --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.txt @@ -0,0 +1,35 @@ +Freescale IRQSTEER Interrupt multiplexer + +Required properties: + +- compatible: should be: + - "fsl,imx8m-irqsteer" + - "fsl,imx-irqsteer" +- reg: Physical base address and size of registers. +- interrupts: 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. +- clocks: Should contain one clock for entry in clock-names + see Documentation/devicetree/bindings/clock/clock-bindings.txt +- clock-names: + - "ipg": main logic clock +- interrupt-controller: Identifies the node as an interrupt controller. +- #interrupt-cells: Specifies the number of cells needed to encode an + interrupt source. The value must be 1. +- fsl,channel: The output channel that all input IRQs should be steered into. +- fsl,num-irqs: Number of input interrupts of this channel. + Should be multiple of 32 input interrupts and up to 512 interrupts. + +Example: + + interrupt-controller@32e2d000 { + compatible = "fsl,imx8m-irqsteer", "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>; + }; |