lock_fops        1304 drivers/clk/tegra/clk-dfll.c DEFINE_DEBUGFS_ATTRIBUTE(lock_fops, attr_lock_get, attr_lock_set, "%llu\n");
lock_fops        1374 drivers/clk/tegra/clk-dfll.c 	debugfs_create_file_unsafe("lock", 0444, root, td, &lock_fops);