54 #include <fdt.h>
90  * @fdt: Base device tree blob
103 static int overlay_get_target(const void *fdt, const void *fdto,  in overlay_get_target()  argument
120 			ret = fdt_path_offset(fdt, path);  in overlay_get_target()
124 		ret = fdt_node_offset_by_phandle(fdt, phandle);  in overlay_get_target()
149  * @fdt: Base device tree blob
161 static int overlay_phandle_add_offset(void *fdt, int node,  in overlay_phandle_add_offset()  argument
168 	val = fdt_getprop(fdt, node, name, &len);  in overlay_phandle_add_offset()
183 	return fdt_setprop_inplace_u32(fdt, node, name, adj_val);  in overlay_phandle_add_offset()
391  * @fdt: Base Device Tree blob
412 static int overlay_fixup_one_phandle(void *fdt, void *fdto,  in overlay_fixup_one_phandle()  argument
427 	symbol_path = fdt_getprop(fdt, symbols_off, label,  in overlay_fixup_one_phandle()
432 	symbol_off = fdt_path_offset(fdt, symbol_path);  in overlay_fixup_one_phandle()
436 	phandle = fdt_get_phandle(fdt, symbol_off);  in overlay_fixup_one_phandle()
455  * @fdt: Base Device Tree blob
472 static int overlay_fixup_phandle(void *fdt, void *fdto, int symbols_off,  in overlay_fixup_phandle()  argument
527 		ret = overlay_fixup_one_phandle(fdt, fdto, symbols_off,  in overlay_fixup_phandle()
540  * @fdt: Base Device Tree blob
554 static int overlay_fixup_phandles(void *fdt, void *fdto)  in overlay_fixup_phandles()  argument
567 	symbols_off = fdt_path_offset(fdt, "/__symbols__");  in overlay_fixup_phandles()
574 		ret = overlay_fixup_phandle(fdt, fdto, symbols_off, property);  in overlay_fixup_phandles()
584  * @fdt: Base Device Tree blob
601 static int overlay_apply_node(void *fdt, int target,  in overlay_apply_node()  argument
620 		ret = fdt_setprop(fdt, target, name, prop, prop_len);  in overlay_apply_node()
630 		nnode = fdt_add_subnode(fdt, target, name);  in overlay_apply_node()
632 			nnode = fdt_subnode_offset(fdt, target, name);  in overlay_apply_node()
640 		ret = overlay_apply_node(fdt, nnode, fdto, subnode);  in overlay_apply_node()
650  * @fdt: Base Device Tree blob
663 static int overlay_merge(void *fdt, void *fdto)  in overlay_merge()  argument
683 		target = overlay_get_target(fdt, fdto, fragment, NULL);  in overlay_merge()
687 		ret = overlay_apply_node(fdt, target, fdto, overlay);  in overlay_merge()
695 static int get_path_len(const void *fdt, int nodeoffset)  in get_path_len()  argument
700 	FDT_CHECK_HEADER(fdt);  in get_path_len()
703 		name = fdt_get_name(fdt, nodeoffset, &namelen);  in get_path_len()
711 		nodeoffset = fdt_parent_offset(fdt, nodeoffset);  in get_path_len()
725  * @fdt: Base Device Tree blob
739 static int overlay_symbol_update(void *fdt, void *fdto)  in overlay_symbol_update()  argument
758 	root_sym = fdt_subnode_offset(fdt, 0, "__symbols__");  in overlay_symbol_update()
762 		root_sym = fdt_add_subnode(fdt, 0, "__symbols__");  in overlay_symbol_update()
816 		ret = overlay_get_target(fdt, fdto, fragment, &target_path);  in overlay_symbol_update()
823 			ret = get_path_len(fdt, target);  in overlay_symbol_update()
831 		ret = fdt_setprop_placeholder(fdt, root_sym, name,  in overlay_symbol_update()
838 			ret = overlay_get_target(fdt, fdto, fragment, &target_path);  in overlay_symbol_update()
847 				ret = fdt_get_path(fdt, target, buf, len + 1);  in overlay_symbol_update()
864 int fdt_overlay_apply(void *fdt, void *fdto)  in fdt_overlay_apply()  argument
866 	uint32_t delta = fdt_get_max_phandle(fdt);  in fdt_overlay_apply()
869 	FDT_CHECK_HEADER(fdt);  in fdt_overlay_apply()
880 	ret = overlay_fixup_phandles(fdt, fdto);  in fdt_overlay_apply()
884 	ret = overlay_merge(fdt, fdto);  in fdt_overlay_apply()
888 	ret = overlay_symbol_update(fdt, fdto);  in fdt_overlay_apply()
909 	fdt_set_magic(fdt, ~0);  in fdt_overlay_apply()