dm: core: Add ofnode functions to obtain an oftree
At present dm_test_ofnode_root() does this manually. Add some inline
functions to handle it, so this code can be centralised.
Add oftree functions to produce a null tree and to check whether a tree
is valid or not.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c
index eac0c50..f146b52 100644
--- a/test/dm/ofnode.c
+++ b/test/dm/ofnode.c
@@ -518,13 +518,16 @@
ut_assert(ofnode_valid(node));
ut_asserteq_str("sbe5", ofnode_get_name(node));
+ ut_assert(!oftree_valid(oftree_null()));
+
ut_assertok(make_ofnode_fdt(uts, fdt, sizeof(fdt)));
if (of_live_active()) {
ut_assertok(unflatten_device_tree(fdt, &root));
- tree.np = root;
+ tree = oftree_from_np(root);
} else {
- tree.fdt = fdt;
+ tree = oftree_from_fdt(fdt);
}
+ ut_assert(oftree_valid(tree));
/* Make sure they don't work on this new tree */
node = ofnode_path_root(tree, "mmc0");