In the loongarch virt fdt file, the interrupt trigger type directly
uses magic numbers. Now, refer to the definitions in the linux kernel and
use macro definitions.

Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
---
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Song Gao <gaosong@loongson.cn>

 hw/loongarch/virt-fdt-build.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/hw/loongarch/virt-fdt-build.c b/hw/loongarch/virt-fdt-build.c
index 1f0ba01f71..7333019cf7 100644
--- a/hw/loongarch/virt-fdt-build.c
+++ b/hw/loongarch/virt-fdt-build.c
@@ -16,6 +16,11 @@
 #include "system/reset.h"
 #include "target/loongarch/cpu.h"
 
+#define FDT_IRQ_TYPE_EDGE_RISING  1
+#define FDT_IRQ_TYPE_EDGE_FALLING 2
+#define FDT_IRQ_TYPE_LEVEL_HIGH   4
+#define FDT_IRQ_TYPE_LEVEL_LOW    8
+
 static void create_fdt(LoongArchVirtMachineState *lvms)
 {
     MachineState *ms = MACHINE(lvms);
@@ -415,7 +420,8 @@ static void fdt_add_uart_node(LoongArchVirtMachineState *lvms,
     if (chosen) {
         qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename);
     }
-    qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", irq, 0x4);
+    qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", irq,
+                           FDT_IRQ_TYPE_LEVEL_HIGH);
     qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent",
                           *pch_pic_phandle);
     g_free(nodename);
@@ -435,7 +441,8 @@ static void fdt_add_rtc_node(LoongArchVirtMachineState *lvms,
                             "loongson,ls7a-rtc");
     qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size);
     qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts",
-                           VIRT_RTC_IRQ - VIRT_GSI_BASE , 0x4);
+                           VIRT_RTC_IRQ - VIRT_GSI_BASE ,
+                           FDT_IRQ_TYPE_LEVEL_HIGH);
     qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent",
                           *pch_pic_phandle);
     g_free(nodename);
-- 
2.39.1