of/fdt: Make fdt blob input parameters of unflatten functions const
Operations to unflatten fdt blobs never modify the input blobs, hence
make them const. Now we no longer need to cast arbitrary const data to
"void *" when calling of_fdt_unflatten_tree().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 587ee50..0cf217d 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -37,7 +37,7 @@
unsigned long node);
extern int of_fdt_match(const void *blob, unsigned long node,
const char *const *compat);
-extern void of_fdt_unflatten_tree(unsigned long *blob,
+extern void of_fdt_unflatten_tree(const unsigned long *blob,
struct device_node **mynodes);
/* TBD: Temporary export of fdt globals - remove when code fully merged */