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dm: update test on of_offset in ofnode_valid 

Update the test for node.of_offset because an invalid offset is not
always set to -1 because the return value of the libfdt functions are:
+ an error with a value < 0
+ a valid offset with value >=0

For example, in ofnode_get_by_phandle() function, we have:
node.of_offset = fdt_node_offset_by_phandle(gd->fdt_blob, phandle);
and this function can return -FDT_ERR_BADPHANDLE (-6).

Without this patch, the added test dm_test_ofnode_get_by_phandle failed.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Patrick Delaunay 2020-09-24 17:26:20 +02:00 committed by Simon Glass
parent 45dbe75da6
commit 6d9949fe86
2 changed files with 17 additions and 1 deletions
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2
include/dm/ofnode.h
View File

@ -128,7 +128,7 @@ static inline bool ofnode_valid(ofnode node)
if (of_live_active())
return node.np != NULL;
else
return node.of_offset != -1;
return node.of_offset >= 0;
}
/**

16
test/dm/ofnode.c
View File

@ -19,6 +19,22 @@ static int dm_test_ofnode_compatible(struct unit_test_state *uts)
}
DM_TEST(dm_test_ofnode_compatible, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
static int dm_test_ofnode_get_by_phandle(struct unit_test_state *uts)
{
/* test invalid phandle */
ut_assert(!ofnode_valid(ofnode_get_by_phandle(0)));
ut_assert(!ofnode_valid(ofnode_get_by_phandle(-1)));
/* test first valid phandle */
ut_assert(ofnode_valid(ofnode_get_by_phandle(1)));
/* test unknown phandle */
ut_assert(!ofnode_valid(ofnode_get_by_phandle(0x1000000)));
return 0;
}
DM_TEST(dm_test_ofnode_get_by_phandle, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
static int dm_test_ofnode_by_prop_value(struct unit_test_state *uts)
{
const char propname[] = "compatible";