1.add watchdog and timeout is 5s; 2.do not print: watchdog did not stop!

kernel/arch/arm64/boot/dts/rockchip/F1BNC002B-gateway.dts

@@ -667,6 +667,11 @@
 	status = "okay";
 };
 
+&wdt {
+	timeout-sec = <5>; 	// 设置超时为5秒
+    status = "okay"; 	// 启用看门狗节点
+};
+
 &u2phy {
 	status = "okay";
 

kernel/drivers/watchdog/watchdog_dev.c

@@ -877,10 +877,10 @@ static int watchdog_release(struct inode *inode, struct file *file)
 		err = watchdog_stop(wdd);
 
 	/* If the watchdog was not stopped, send a keepalive ping */
-	if (err < 0) {
+	/*if (err < 0) {
 		pr_crit("watchdog%d: watchdog did not stop!\n", wdd->id);
 		watchdog_ping(wdd);
-	}
+	}*/
 
 	watchdog_update_worker(wdd);