in core.c [1128:1141]
static int __init icc_init(void)
{
struct device_node *root = of_find_node_by_path("/");
providers_count = of_count_icc_providers(root);
of_node_put(root);
icc_debugfs_dir = debugfs_create_dir("interconnect", NULL);
debugfs_create_file("interconnect_summary", 0444,
icc_debugfs_dir, NULL, &icc_summary_fops);
debugfs_create_file("interconnect_graph", 0444,
icc_debugfs_dir, NULL, &icc_graph_fops);
return 0;
}