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-rw-r--r--device_tree.c16
-rw-r--r--device_tree.h1
2 files changed, 16 insertions, 1 deletions
diff --git a/device_tree.c b/device_tree.c
index 967c97a..2f127b7 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -132,11 +132,25 @@ int qemu_devtree_setprop_string(void *fdt, const char *node_path,
return r;
}
+uint32_t qemu_devtree_get_phandle(void *fdt, const char *path)
+{
+ uint32_t r;
+
+ r = fdt_get_phandle(fdt, findnode_nofail(fdt, path));
+ if (r <= 0) {
+ fprintf(stderr, "%s: Couldn't get phandle for %s: %s\n", __func__,
+ path, fdt_strerror(r));
+ exit(1);
+ }
+
+ 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));
+ uint32_t phandle = qemu_devtree_get_phandle(fdt, target_node_path);
return qemu_devtree_setprop_cell(fdt, node_path, property, phandle);
}
diff --git a/device_tree.h b/device_tree.h
index 754bd2b..36fc9db 100644
--- a/device_tree.h
+++ b/device_tree.h
@@ -25,6 +25,7 @@ int qemu_devtree_setprop_string(void *fdt, const char *node_path,
int qemu_devtree_setprop_phandle(void *fdt, const char *node_path,
const char *property,
const char *target_node_path);
+uint32_t qemu_devtree_get_phandle(void *fdt, const char *path);
int qemu_devtree_nop_node(void *fdt, const char *node_path);
int qemu_devtree_add_subnode(void *fdt, const char *name);