diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 7db51781289e..f4cafca1a7da 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -523,7 +523,10 @@ static int dw8250_probe(struct platform_device *pdev)
 	if (!regs)
 		return dev_err_probe(dev, -EINVAL, "no registers defined\n");
 
-	irq = platform_get_irq(pdev, 0);
+	irq = platform_get_irq_optional(pdev, 0);
+	/* no interrupt -> fall back to polling */
+	if (irq == -ENXIO)
+		irq = 0;
 	if (irq < 0)
 		return irq;