1 files changed, 50 insertions, 1 deletions
diff --git a/include/linux/mtd/concat.h b/include/linux/mtd/concat.h
index b42d9af87c4e..2cd9d48958a8 100644
--- a/include/linux/mtd/concat.h
+++ b/include/linux/mtd/concat.h
@@ -28,5 +28,54 @@ struct mtd_info *mtd_concat_create(
 
 void mtd_concat_destroy(struct mtd_info *mtd);
 
-#endif
+/**
+ * mtd_virt_concat_node_create - Create a component for concatenation
+ *
+ * Returns a positive number representing the no. of devices found for
+ * concatenation, or a negative error code.
+ *
+ * List all the devices for concatenations found in DT and create a
+ * component for concatenation.
+ */
+int mtd_virt_concat_node_create(void);
+
+/**
+ * mtd_virt_concat_add - add mtd_info object to the list of subdevices for concatenation
+ * @mtd: pointer to new MTD device info structure
+ *
+ * Returns true if the mtd_info object is added successfully else returns false.
+ *
+ * The mtd_info object is added to the list of subdevices for concatenation.
+ * It returns true if a match is found, and false if all subdevices have
+ * already been added or if the mtd_info object does not match any of the
+ * intended MTD devices.
+ */
+bool mtd_virt_concat_add(struct mtd_info *mtd);
 
+/**
+ * mtd_virt_concat_create_join - Create and register the concatenated MTD device
+ *
+ * Returns 0 on succes, or a negative error code.
+ *
+ * Creates and registers the concatenated MTD device
+ */
+int mtd_virt_concat_create_join(void);
+
+/**
+ * mtd_virt_concat_destroy - Remove the concat that includes a specific mtd device
+ *                           as one of its components.
+ * @mtd: pointer to MTD device info structure.
+ *
+ * Returns 0 on succes, or a negative error code.
+ *
+ * If the mtd_info object is part of a concatenated device, all other MTD devices
+ * within that concat are registered individually. The concatenated device is then
+ * removed, along with its concatenation component.
+ *
+ */
+int mtd_virt_concat_destroy(struct mtd_info *mtd);
+
+void mtd_virt_concat_destroy_joins(void);
+void mtd_virt_concat_destroy_items(void);
+
+#endif