diff --git a/drivers/base/core.c b/drivers/base/core.c
index bbecaf9293be..c3064ff09af5 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2884,3 +2884,19 @@ void set_secondary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
 	else
 		dev->fwnode = fwnode;
 }
+
+/**
+ * device_set_of_node_from_dev - reuse device-tree node of another device
+ * @dev: device whose device-tree node is being set
+ * @dev2: device whose device-tree node is being reused
+ *
+ * Takes another reference to the new device-tree node after first dropping
+ * any reference held to the old node.
+ */
+void device_set_of_node_from_dev(struct device *dev, const struct device *dev2)
+{
+	of_node_put(dev->of_node);
+	dev->of_node = of_node_get(dev2->of_node);
+	dev->of_node_reused = true;
+}
+EXPORT_SYMBOL_GPL(device_set_of_node_from_dev);
diff --git a/include/linux/device.h b/include/linux/device.h
index 9ef518af5515..60ab00b13095 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -879,6 +879,8 @@ struct dev_links_info {
  *
  * @offline_disabled: If set, the device is permanently online.
  * @offline:	Set after successful invocation of bus type's .offline().
+ * @of_node_reused: Set if the device-tree node is shared with an ancestor
+ *              device.
  *
  * At the lowest level, every device in a Linux system is represented by an
  * instance of struct device. The device structure contains the information
@@ -966,6 +968,7 @@ struct device {
 
 	bool			offline_disabled:1;
 	bool			offline:1;
+	bool			of_node_reused:1;
 };
 
 static inline struct device *kobj_to_dev(struct kobject *kobj)
@@ -1144,6 +1147,7 @@ extern int device_offline(struct device *dev);
 extern int device_online(struct device *dev);
 extern void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode);
 extern void set_secondary_fwnode(struct device *dev, struct fwnode_handle *fwnode);
+void device_set_of_node_from_dev(struct device *dev, const struct device *dev2);
 
 static inline int dev_num_vf(struct device *dev)
 {