of: merge of_node_get(), of_node_put() and of_find_all_nodes()

Merge common code between Sparc, PowerPC and Microblaze.

Sparc differs in the implementation at this point, so this patch uses
a #ifdef to handle sparc differently for now.  The merging of
implementations will occur in a later patch

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>

1 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
index 18e4379b8b7f..4636bba93afa 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -79,6 +79,22 @@ set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
         dn->pde = de;
 }
 
+#if defined(CONFIG_SPARC)
+/* Dummy ref counting routines - to be implemented later */
+static inline struct device_node *of_node_get(struct device_node *node)
+{
+        return node;
+}
+static inline void of_node_put(struct device_node *node)
+{
+}
+
+#else
+extern struct device_node *of_find_all_nodes(struct device_node *prev);
+extern struct device_node *of_node_get(struct device_node *node);
+extern void of_node_put(struct device_node *node);
+#endif
+
 /*
  * OF address retreival & translation
  */