fdt: Add function to alloc phandle values
If we are creating reference (handles) to nodes in a device tree we need
to first create a new phandle in node and this needs a new phandle
value. So we search through the whole dtb to find the max phandle value
and return the next greater value for a new phandle allocation.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 54af9fe..871ef45 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -86,6 +86,7 @@
u64 fdt_translate_address(void *blob, int node_offset, const u32 *in_addr);
int fdt_node_offset_by_compat_reg(void *blob, const char *compat,
phys_addr_t compat_off);
+int fdt_alloc_phandle(void *blob);
#endif /* ifdef CONFIG_OF_LIBFDT */
#endif /* ifndef __FDT_SUPPORT_H */
