of/promtree: add package-to-path support to pdt
package-to-path is a PROM function which tells us the real (full) name of the
node. This provides a hook for that in the prom ops struct, and makes use
of it in the pdt code when attempting to determine a node's name. If the
hook is available, try using it (falling back to looking at the "name"
property if it fails).
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/include/linux/of_pdt.h b/include/linux/of_pdt.h
index 0f7d0c5..c65a18a 100644
--- a/include/linux/of_pdt.h
+++ b/include/linux/of_pdt.h
@@ -29,6 +29,9 @@
/* phandles are 0 if no child or sibling exists */
phandle (*getchild)(phandle parent);
phandle (*getsibling)(phandle node);
+
+ /* return 0 on success; fill in 'len' with number of bytes in path */
+ int (*pkg2path)(phandle node, char *buf, const int buflen, int *len);
};
extern void *prom_early_alloc(unsigned long size);