device property: Make fwnode_handle_get() return the fwnode

The fwnode_handle_get() function is used to obtain a reference to an
fwnode. A common usage pattern for the OF equivalent of the function is:

	mynode = of_node_get(node);

Similarly make fwnode_handle_get() return the fwnode to which the
reference was obtained.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

include/linux/fwnode.h

diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 0c35b6c..411a84c 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -68,7 +68,7 @@ struct fwnode_reference_args {
  * @graph_parse_endpoint: Parse endpoint for port and endpoint id.
  */
 struct fwnode_operations {
-	void (*get)(struct fwnode_handle *fwnode);
+	struct fwnode_handle *(*get)(struct fwnode_handle *fwnode);
 	void (*put)(struct fwnode_handle *fwnode);
 	bool (*device_is_available)(const struct fwnode_handle *fwnode);
 	bool (*property_present)(const struct fwnode_handle *fwnode,

include/linux/property.h

diff --git a/include/linux/property.h b/include/linux/property.h
index 6bebee1..42069c2 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -100,7 +100,7 @@ struct fwnode_handle *fwnode_get_named_child_node(
 struct fwnode_handle *device_get_named_child_node(struct device *dev,
 						  const char *childname);
 
-void fwnode_handle_get(struct fwnode_handle *fwnode);
+struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode);
 void fwnode_handle_put(struct fwnode_handle *fwnode);
 
 unsigned int device_get_child_node_count(struct device *dev);