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-rw-r--r--device_tree.c24
-rw-r--r--device_tree.h1
2 files changed, 25 insertions, 0 deletions
diff --git a/device_tree.c b/device_tree.c
index 23e89e3b90..f4a78c8217 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -118,3 +118,27 @@ int qemu_devtree_nop_node(void *fdt, const char *node_path)
return fdt_nop_node(fdt, offset);
}
+
+int qemu_devtree_add_subnode(void *fdt, const char *name)
+{
+ int offset;
+ char *dupname = g_strdup(name);
+ char *basename = strrchr(dupname, '/');
+ int retval;
+
+ if (!basename) {
+ return -1;
+ }
+
+ basename[0] = '\0';
+ basename++;
+
+ offset = fdt_path_offset(fdt, dupname);
+ if (offset < 0) {
+ return offset;
+ }
+
+ retval = fdt_add_subnode(fdt, offset, basename);
+ g_free(dupname);
+ return retval;
+}
diff --git a/device_tree.h b/device_tree.h
index 76fce5ffb2..4378685b7a 100644
--- a/device_tree.h
+++ b/device_tree.h
@@ -23,5 +23,6 @@ int qemu_devtree_setprop_cell(void *fdt, const char *node_path,
int qemu_devtree_setprop_string(void *fdt, const char *node_path,
const char *property, const char *string);
int qemu_devtree_nop_node(void *fdt, const char *node_path);
+int qemu_devtree_add_subnode(void *fdt, const char *name);
#endif /* __DEVICE_TREE_H__ */