arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts

   1 /dts-v1/;
   2 /plugin/;
   3
   4 / {
   5         compatible = "brcm,bcm2835";
   6
   7         fragment@0 {
   8                 // Configure the gpio pin controller
   9                 target = <&gpio>;
  10                 __overlay__ {
  11                             interrupts = <255 255>, <2 18>;
  12                 };
  13         };
  14 };