From db1ef1e12b993275e09f116ebc3d23d675c7e28c Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 6 Sep 2022 20:27:33 -0600 Subject: dm: core: Support copying properties with ofnode Add a function to copy properties from one node to another. Signed-off-by: Simon Glass --- test/dm/ofnode.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) (limited to 'test') diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c index 69ffba0..41811ec 100644 --- a/test/dm/ofnode.c +++ b/test/dm/ofnode.c @@ -1176,3 +1176,62 @@ static int dm_test_ofnode_too_many(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_ofnode_too_many, UT_TESTF_SCAN_FDT); + +static int check_copy_props(struct unit_test_state *uts, ofnode src, + ofnode dst) +{ + u32 reg[2], val; + + ut_assertok(ofnode_copy_props(src, dst)); + + ut_assertok(ofnode_read_u32(dst, "ping-expect", &val)); + ut_asserteq(3, val); + + ut_asserteq_str("denx,u-boot-fdt-test", + ofnode_read_string(dst, "compatible")); + + /* check that a property with the same name is overwritten */ + ut_assertok(ofnode_read_u32_array(dst, "reg", reg, ARRAY_SIZE(reg))); + ut_asserteq(3, reg[0]); + ut_asserteq(1, reg[1]); + + /* reset the compatible so the live tree does not change */ + ut_assertok(ofnode_write_string(dst, "compatible", "nothing")); + + return 0; +} + +static int dm_test_ofnode_copy_props(struct unit_test_state *uts) +{ + ofnode src, dst; + + /* + * These nodes are chosen so that the src node is before the destination + * node in the tree. This doesn't matter with livetree, but with + * flattree any attempt to insert a property earlier in the tree will + * mess up the offsets after it. + */ + src = ofnode_path("/b-test"); + dst = ofnode_path("/some-bus"); + + ut_assertok(check_copy_props(uts, src, dst)); + + /* check a property that is in the destination already */ + ut_asserteq_str("mux0", ofnode_read_string(dst, "mux-control-names")); + + return 0; +} +DM_TEST(dm_test_ofnode_copy_props, UT_TESTF_SCAN_FDT); + +static int dm_test_ofnode_copy_props_ot(struct unit_test_state *uts) +{ + ofnode src, dst; + oftree otree = get_other_oftree(uts); + + src = ofnode_path("/b-test"); + dst = oftree_path(otree, "/node/subnode2"); + ut_assertok(check_copy_props(uts, src, dst)); + + return 0; +} +DM_TEST(dm_test_ofnode_copy_props_ot, UT_TESTF_SCAN_FDT | UT_TESTF_OTHER_FDT); -- cgit v1.1