len0rd/dtc
1
0
Fork 0
mirror of https://github.com/dgibson/dtc.git synced 2026-05-12 11:43:04 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

libfdt: Make unit address optional for finding nodes

Browse source 
At present, the fdt_subnode_offset() and fdt_path_offset() functions
in libfdt require the exact name of the nodes in question be passed,
including unit address.

This is contrary to traditional OF-like finddevice() behaviour, which
allows the unit address to be omitted (which is useful when the device
name is unambiguous without the address).

This patch introduces similar behaviour to
fdt_subnode_offset_namelen(), and hence to fdt_subnode_offset() and
fdt_path_offset() which are implemented in terms of the former.  The
unit address can be omitted from the given node name.  If this is
ambiguous, the first such node in the flattened tree will be selected
(this behaviour is consistent with IEEE1275 which specifies only that
an arbitrary node matching the given information be selected).

This very small change is then followed by many more diffs which
change the test examples and testcases to exercise this behaviour.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2007-09-28 15:51:04 +10:00 • committed by Jon Loeliger
parent 02a5556850
commit d2a9da0458
17 changed files with 103 additions and 78 deletions
Download patch file Download diff file Expand all files Collapse all files

8
tests/get_name.c
View file

@ -74,10 +74,10 @@ int main(int argc, char *argv[])
fdt = load_blob_arg(argc, argv);
check_name(fdt, "/");
check_name(fdt, "/subnode1");
check_name(fdt, "/subnode2");
check_name(fdt, "/subnode1/subsubnode");
check_name(fdt, "/subnode2/subsubnode");
check_name(fdt, "/subnode@1");
check_name(fdt, "/subnode@2");
check_name(fdt, "/subnode@1/subsubnode");
check_name(fdt, "/subnode@2/subsubnode@0");
PASS();
}