diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index bf88b95f7458..e9d044a331b0 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -12,6 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/of_device.h>
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
@@ -561,7 +562,13 @@ static int of_serdev_register_devices(struct serdev_controller *ctrl)
 		} else
 			found = true;
 	}
-	if (!found)
+
+	/*
+	 * When the serdev controller is connected to an external connector like
+	 * M.2 in DT, then the serdev devices may be created dynamically by the
+	 * connector driver.
+	 */
+	if (!found && !of_graph_is_present(dev_of_node(&ctrl->dev)))
 		return -ENODEV;
 
 	return 0;