@@ -253,6 +253,26 @@ static inline struct reset_control *of_reset_control_get_exclusive(
return __of_reset_control_get(node, id, 0, false, false, true);
}
+/**
+ * of_reset_control_get_optional_exclusive - Lookup and obtain an optional exclusive
+ * reference to a reset controller.
+ * @node: device to be reset by the controller
+ * @id: reset line name
+ *
+ * Optional variant of of_reset_control_get_exclusive(). If the requested reset
+ * is not specified in the device tree, this function returns NULL instead of
+ * an error.
+ *
+ * Returns a struct reset_control or IS_ERR() condition containing errno.
+ *
+ * Use of id names is optional.
+ */
+static inline struct reset_control *of_reset_control_get_optional_exclusive(
+ struct device_node *node, const char *id)
+{
+ return __of_reset_control_get(node, id, 0, false, true, true);
+}
+
/**
* of_reset_control_get_shared - Lookup and obtain a shared reference
* to a reset controller.