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authorAlexander Graf <agraf@suse.de>2012-05-17 14:11:52 +0200
committerAlexander Graf <agraf@suse.de>2012-06-24 01:04:46 +0200
commit8535ab125853d1ba9067ba408c532c2ad79146e6 (patch)
tree12dd5672862a7998db034b9de67af6b3114fcd63 /device_tree.c
parent7ae2291e8e0f34ac520044c8af0437a701e1c967 (diff)
downloadqemu-arm-8535ab125853d1ba9067ba408c532c2ad79146e6.tar.gz
dt: add helper for phandle references
Phandles are the fancy device tree name for "pointer to another node". To create a phandle property, we most likely want to reference to the node we're pointing to by its path. So create a helper that allows us to do so. Signed-off-by: Alexander Graf <agraf@suse.de> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Diffstat (limited to 'device_tree.c')
-rw-r--r--device_tree.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/device_tree.c b/device_tree.c
index 94a239e987..2905f9afe4 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -132,6 +132,14 @@ int qemu_devtree_setprop_string(void *fdt, const char *node_path,
return r;
}
+int qemu_devtree_setprop_phandle(void *fdt, const char *node_path,
+ const char *property,
+ const char *target_node_path)
+{
+ uint32_t phandle = fdt_get_phandle(fdt, findnode_nofail(fdt, target_node_path));
+ return qemu_devtree_setprop_cell(fdt, node_path, property, phandle);
+}
+
int qemu_devtree_nop_node(void *fdt, const char *node_path)
{
int r;