18c2ecf20Sopenharmony_ciTS-4800 FPGA interrupt controller 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciTS-4800 FPGA has an internal interrupt controller. When one of the 48c2ecf20Sopenharmony_ciinterrupts is triggered, the SoC is notified, usually using a GPIO as 58c2ecf20Sopenharmony_ciparent interrupt source. 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ciRequired properties: 88c2ecf20Sopenharmony_ci- compatible: should be "technologic,ts4800-irqc" 98c2ecf20Sopenharmony_ci- interrupt-controller: identifies the node as an interrupt controller 108c2ecf20Sopenharmony_ci- reg: physical base address of the controller and length of memory mapped 118c2ecf20Sopenharmony_ci region 128c2ecf20Sopenharmony_ci- #interrupt-cells: specifies the number of cells needed to encode an interrupt 138c2ecf20Sopenharmony_ci source, should be 1. 148c2ecf20Sopenharmony_ci- interrupts: specifies the interrupt line in the interrupt-parent controller 15