diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 7a6dfd40af9e..ccb83c05be20 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -1530,6 +1530,9 @@ static int omap8250_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, priv);
 
 	device_set_wakeup_capable(&pdev->dev, true);
+	if (of_property_read_bool(np, "wakeup-source"))
+		device_set_wakeup_enable(&pdev->dev, true);
+
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_use_autosuspend(&pdev->dev);