PL端

设备树端配置

/ { plint1 { compatible = "subomb,plint"; interrupt-parent = <&gic>; interrupts = <0 85 4>; // 1 = IRQ_TYPE_EDGE_RISING（上升沿触发） }; plint2 { compatible = "subomb,plint"; interrupt-parent = <&gic>; interrupts = <0 86 4>; }; plint3 { compatible = "subomb,plint"; interrupt-parent = <&gic>; interrupts = <0 87 4>; }; };

内核驱动代码配置

#include <linux/module.h> #include <linux/interrupt.h> #include <linux/of_platform.h> #include <linux/of_irq.h> #include <linux/ui