| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * Copyright (c) 2017 Google, Inc | |
| * Written by Simon Glass <sjg@chromium.org> | |
| * | |
| * Support for a 'live' (as opposed to flat) device tree | |
| */ | |
| #ifndef _OF_LIVE_H | |
| #define _OF_LIVE_H | |
| struct device_node; | |
| /** | |
| * of_live_build() - build a live (hierarchical) tree from a flat DT | |
| * | |
| * @fdt_blob: Input tree to convert | |
| * @rootp: Returns live tree that was created | |
| * Return: 0 if OK, -ve on error | |
| */ | |
| int of_live_build(const void *fdt_blob, struct device_node **rootp); | |
| /** | |
| * unflatten_device_tree() - create tree of device_nodes from flat blob | |
| * | |
| * Note that this allocates a single block of memory, pointed to by *mynodes. | |
| * To free the tree, use free(*mynodes) | |
| * | |
| * unflattens a device-tree, creating the | |
| * tree of struct device_node. It also fills the "name" and "type" | |
| * pointers of the nodes so the normal device-tree walking functions | |
| * can be used. | |
| * @blob: The blob to expand | |
| * @mynodes: The device_node tree created by the call | |
| * Return: 0 if OK, -ve on error | |
| */ | |
| int unflatten_device_tree(const void *blob, struct device_node **mynodes); | |
| #endif |