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dm: core: Create a function to get a live tree in a test

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Move this logic out of the test into separate functions, so we can use it
in other tests.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2022-09-06 20:27:29 -06:00 committed by Tom Rini
parent 988f146855
commit 88a1ae8172
1 changed files with 49 additions and 8 deletions
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57
test/dm/ofnode.c
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@ -51,6 +51,46 @@ oftree get_other_oftree(struct unit_test_state *uts)
return tree;
}
/**
* get_oftree() - Convert a flat tree into an oftree object
*
* @uts: Test state
* @fdt: Pointer to flat tree
* @treep: Returns the tree, on success
* Return: 0 if OK, 1 if the tree failed to unflatten, -EOVERFLOW if there are
* too many flat trees to allow another one to be registers (see
* oftree_ensure())
*/
int get_oftree(struct unit_test_state *uts, void *fdt, oftree *treep)
{
oftree tree;
if (of_live_active()) {
struct device_node *root;
ut_assertok(unflatten_device_tree(fdt, &root));
tree = oftree_from_np(root);
} else {
tree = oftree_from_fdt(fdt);
if (!oftree_valid(tree))
return -EOVERFLOW;
}
*treep = tree;
return 0;
}
/**
* free_oftree() - Free memory used by get_oftree()
*
* @tree: Tree to free
*/
void free_oftree(oftree tree)
{
if (of_live_active())
free(tree.np);
}
static int dm_test_ofnode_compatible(struct unit_test_state *uts)
{
ofnode root_node = ofnode_path("/");
@ -590,10 +630,10 @@ static int make_ofnode_fdt(struct unit_test_state *uts, void *fdt, int size)
static int dm_test_ofnode_root(struct unit_test_state *uts)
{
struct device_node *root = NULL;
char fdt[256];
oftree tree;
ofnode node;
int ret;
/* Check that aliases work on the control FDT */
node = ofnode_get_aliases_node("ethernet3");
@ -603,12 +643,13 @@ static int dm_test_ofnode_root(struct unit_test_state *uts)
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 = oftree_from_np(root);
} else {
tree = oftree_from_fdt(fdt);
}
ret = get_oftree(uts, fdt, &tree);
/* skip the rest of this test if multiple FDTs are not supported */
if (ret == -EOVERFLOW)
return 0;
ut_assertok(ret);
ut_assert(oftree_valid(tree));
/* Make sure they don't work on this new tree */
@ -623,7 +664,7 @@ static int dm_test_ofnode_root(struct unit_test_state *uts)
node = oftree_path(oftree_default(), "/new-mmc");
ut_assert(!ofnode_valid(node));
free(root);
free_oftree(tree);
return 0;
}