1 Broadcom VCHIQ firmware services
5 - compatible: Should be "brcm,bcm2835-vchiq"
6 - reg: Physical base address and length of the doorbell register pair
7 - interrupts: The interrupt number
8 See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt
13 compatible = "brcm,bcm2835-vchiq";
14 reg = <0x7e00b840 0xf>;