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dm: core: Provide ofnode_find_subnode_unit()

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The ofnode_find_subnode() function currently processes things two
different ways, so the treatment of unit addresses differs depending on
whether OF_LIVE is enabled or not.

Add a new version which uses the ofnode API and add a test to check that
unit addresses can be matched correctly. Leave the old function in place
for the !OF_LIVE case, to avoid a code-size increase, e.g. on
firefly-rk3288

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-01-10 17:00:29 -07:00
committed by Tom Rini
parent aacc05b07d
commit 8985ff56b1
3 changed files with 53 additions and 7 deletions
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19
test/dm/ofnode.c
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@@ -1303,6 +1303,25 @@ static int dm_test_ofnode_find_subnode(struct unit_test_state *uts)
}
DM_TEST(dm_test_ofnode_find_subnode, UTF_SCAN_FDT);
/* check ofnode_find_subnode() with unit addresses */
static int dm_test_ofnode_find_subnode_unit(struct unit_test_state *uts)
{
ofnode node, subnode;
node = ofnode_path("/some-bus");
ut_assert(ofnode_valid(node));
subnode = ofnode_find_subnode_unit(node, "c-test@5");
ut_assert(ofnode_valid(subnode));
ut_asserteq_str("c-test@5", ofnode_get_name(subnode));
subnode = ofnode_find_subnode_unit(node, "c-test");
ut_assert(ofnode_valid(subnode));
ut_asserteq_str("c-test@5", ofnode_get_name(subnode));
return 0;
}
DM_TEST(dm_test_ofnode_find_subnode_unit, UTF_SCAN_FDT);
/* test ofnode_find_subnode() on the 'other' tree */
static int dm_test_ofnode_find_subnode_ot(struct unit_test_state *uts)
{