libs/libfdt/fdt_overlay.c

15  * overlay_get_target_phandle - retrieves the target phandle of a fragment
19  * overlay_get_target_phandle() retrieves the target phandle of an
20  * overlay fragment when that fragment uses a phandle (target
21  * property) instead of a path (target-path property).
24  *      the phandle pointed by the target property
33 	val = fdt_getprop(fdto, fragment, "target", &len);
44  * overlay_get_target - retrieves the offset of a fragment's target
48  * @pathp: pointer which receives the path of the target (or NULL)
50  * overlay_get_target() retrieves the target offset in the base
73 		path = fdt_getprop(fdto, fragment, "target-path", &path_len);
82 	* If we haven't found either a target or a
83 	* target-path property in a node that contains a
541  * @target: Node offset in the base device tree to apply the fragment to
545  * overlay_apply_node() merges a node into a target base device tree
557 static int overlay_apply_node(void *fdt, int target,
576 		ret = fdt_setprop(fdt, target, name, prop, prop_len);
586 		nnode = fdt_add_subnode(fdt, target, name);
588 			nnode = fdt_subnode_offset(fdt, target, name);
625 		int target;
639 		target = overlay_get_target(fdt, fdto, fragment, NULL);
640 		if (target < 0)
641 			return target;
643 		ret = overlay_apply_node(fdt, target, fdto, overlay);
697 	int root_sym, ov_sym, prop, path_len, fragment, target;
744 			 * up in the target tree */
764 			 * up in the target tree */
781 		/* get the target of the fragment */
785 		target = ret;
787 		/* if we have a target path use */
789 			ret = get_path_len(fdt, target);
807 			target = ret;
811 		if (len > 1) { /* target is not root */
813 				ret = fdt_get_path(fdt, target, buf, len + 1);