X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libfdt%2Ffdt_rw.c;h=55fcc41d1a2abd2852878b9d9760d17a57998799;hb=978aec12faffb4bb8d887894fffd16960356b343;hp=aaafc53644fb89100db283bcfabf2adef9c535b0;hpb=6f1d57c567824b7e525ea36f972b662d67382f73;p=u-boot

diff --git a/libfdt/fdt_rw.c b/libfdt/fdt_rw.c
index aaafc53644..55fcc41d1a 100644
--- a/libfdt/fdt_rw.c
+++ b/libfdt/fdt_rw.c
@@ -16,6 +16,9 @@
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
+#include "config.h"
+#if CONFIG_OF_LIBFDT
+
 #include "libfdt_env.h"
 
 #include <fdt.h>
@@ -185,6 +188,32 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name,
 	return 0;
 }
 
+/**
+ * fdt_find_and_setprop: Find a node and set it's property
+ *
+ * @fdt: ptr to device tree
+ * @node: path of node
+ * @prop: property name
+ * @val: ptr to new value
+ * @len: length of new property value
+ * @create: flag to create the property if it doesn't exist
+ *
+ * Convenience function to directly set a property given the path to the node.
+ */
+int fdt_find_and_setprop(void *fdt, const char *node, const char *prop,
+			 const void *val, int len, int create)
+{
+	int nodeoff = fdt_find_node_by_path(fdt, node);
+
+	if (nodeoff < 0)
+		return nodeoff;
+
+	if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL))
+		return 0; /* create flag not set; so exit quietly */
+
+	return fdt_setprop(fdt, nodeoff, prop, val, len);
+}
+
 int fdt_delprop(void *fdt, int nodeoffset, const char *name)
 {
 	struct fdt_property *prop;
@@ -291,3 +320,5 @@ int fdt_pack(void *fdt)
 	fdt_set_header(fdt, totalsize, _blob_data_size(fdt));
 	return 0;
 }
+
+#endif /* CONFIG_OF_LIBFDT */