@@ -515,8 +515,8 @@ int qemu_fdt_add_subnode(void *fdt, const char *name)
retval = fdt_add_subnode(fdt, parent, basename);
if (retval < 0) {
- error_report("FDT: Failed to create subnode %s: %s", name,
- fdt_strerror(retval));
+ error_report("%s: Failed to create subnode %s: %s",
+ __func__, name, fdt_strerror(retval));
exit(1);
}
@@ -524,6 +524,47 @@ int qemu_fdt_add_subnode(void *fdt, const char *name)
return retval;
}
+/*
+ * Like qemu_fdt_add_subnode(), but will add all missing
+ * subnodes in the path.
+ */
+int qemu_fdt_add_path(void *fdt, const char *path)
+{
+ char *dupname, *basename, *p;
+ int parent, retval = -1;
+
+ if (path[0] != '/') {
+ return retval;
+ }
+
+ parent = fdt_path_offset(fdt, "/");
+ p = dupname = g_strdup(path);
+
+ while (p) {
+ *p = '/';
+ basename = p + 1;
+ p = strchr(p + 1, '/');
+ if (p) {
+ *p = '\0';
+ }
+ retval = fdt_path_offset(fdt, dupname);
+ if (retval < 0 && retval != -FDT_ERR_NOTFOUND) {
+ error_report("%s: Invalid path %s: %s",
+ __func__, path, fdt_strerror(retval));
+ exit(1);
+ } else if (retval == -FDT_ERR_NOTFOUND) {
+ retval = fdt_add_subnode(fdt, parent, basename);
+ if (retval < 0) {
+ break;
+ }
+ }
+ parent = retval;
+ }
+
+ g_free(dupname);
+ return retval;
+}
+
void qemu_fdt_dumpdtb(void *fdt, int size)
{
const char *dumpdtb = qemu_opt_get(qemu_get_machine_opts(), "dumpdtb");
@@ -104,6 +104,7 @@ uint32_t qemu_fdt_get_phandle(void *fdt, const char *path);
uint32_t qemu_fdt_alloc_phandle(void *fdt);
int qemu_fdt_nop_node(void *fdt, const char *node_path);
int qemu_fdt_add_subnode(void *fdt, const char *name);
+int qemu_fdt_add_path(void *fdt, const char *path);
#define qemu_fdt_setprop_cells(fdt, node_path, property, ...) \
do { \