1* Interrupt Controllers
2
3Currently defined compatibles:
4- fsl,cpm1-pic
5  - only one interrupt cell
6- fsl,pq1-pic
7- fsl,cpm2-pic
8  - second interrupt cell is level/sense:
9    - 2 is falling edge
10    - 8 is active low
11
12Example:
13	interrupt-controller@10c00 {
14		#interrupt-cells = <2>;
15		interrupt-controller;
16		reg = <10c00 80>;
17		compatible = "mpc8272-pic", "fsl,cpm2-pic";
18	};
19