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authorAlexander Graf <agraf@suse.de>2011-07-22 13:55:37 +0200
committerAlexander Graf <agraf@suse.de>2011-10-06 09:48:00 +0200
commit80ad781643b68c91316687051965e12021abeab6 (patch)
tree5ddf457807f58a26313b70d722f8ebb532500d15 /device_tree.c
parent10f25a46c5202329cc028bcd79a0ca5f277261a4 (diff)
downloadqemu-arm-80ad781643b68c91316687051965e12021abeab6.tar.gz
device tree: add add_subnode command
We want to be able to create subnodes in our device tree, so export it through the qemu device tree abstraction framework. Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'device_tree.c')
-rw-r--r--device_tree.c24
1 files changed, 24 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;
+}