linux/Documentation/devicetree/bindings/interrupt-controller/cdns,xtensa-mx.txt

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* Xtensa Interrupt Distributor and Programmable Interrupt Controller (MX)
Required properties:
- compatible: Should be "cdns,xtensa-mx".
Remaining properties have exact same meaning as in Xtensa PIC
(see cdns,xtensa-pic.txt).
Examples:
pic: pic {
compatible = "cdns,xtensa-mx";
/* one cell: internal irq number,
* two cells: second cell == 0: internal irq number
* second cell == 1: external irq number
*/
#interrupt-cells = <2>;
interrupt-controller;
};