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libfdt: Add functions for handling the "compatible" property

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This patch adds functions for dealing with the compatible property.
fdt_node_check_compatible() can be used to determine whether a node is
compatible with a given string and fdt_node_offset_by_compatible()
locates nodes with a given compatible string.

Testcases for these functions are also included.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson
2007-10-16 13:58:25 +10:00
committed by Jon Loeliger
parent 121acdec91
commit 333542fabf
9 changed files with 199 additions and 1 deletions
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7
tests/rw_tree1.c
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@@ -72,18 +72,23 @@ int main(int argc, char *argv[])
CHECK(fdt_add_mem_rsv(fdt, TEST_ADDR_1, TEST_SIZE_1));
CHECK(fdt_add_mem_rsv(fdt, TEST_ADDR_2, TEST_SIZE_2));
CHECK(fdt_setprop_string(fdt, 0, "compatible", "test_tree1"));
CHECK(fdt_setprop_typed(fdt, 0, "prop-int", TEST_VALUE_1));
CHECK(fdt_setprop_string(fdt, 0, "prop-str", TEST_STRING_1));
OFF_CHECK(offset, fdt_add_subnode(fdt, 0, "subnode@1"));
CHECK(fdt_setprop_string(fdt, offset, "compatible", "subnode1"));
CHECK(fdt_setprop_typed(fdt, offset, "prop-int", TEST_VALUE_1));
OFF_CHECK(offset, fdt_add_subnode(fdt, offset, "subsubnode"));
CHECK(fdt_setprop(fdt, offset, "compatible",
"subsubnode1\0subsubnode", 23));
CHECK(fdt_setprop_typed(fdt, offset, "prop-int", TEST_VALUE_1));
OFF_CHECK(offset, fdt_add_subnode(fdt, 0, "subnode@2"));
CHECK(fdt_setprop_typed(fdt, offset, "prop-int", TEST_VALUE_2));
OFF_CHECK(offset, fdt_add_subnode(fdt, offset, "subsubnode@0"));
CHECK(fdt_setprop(fdt, offset, "compatible",
"subsubnode2\0subsubnode", 23));
CHECK(fdt_setprop_typed(fdt, offset, "prop-int", TEST_VALUE_2));
CHECK(fdt_pack(fdt));