hsi_register_client_driver
return hsi_register_client_driver(&cs_hsi_driver);
ret = hsi_register_client_driver(&hsc_driver);
return hsi_register_client_driver(&nokia_modem_driver);
return hsi_register_client_driver(&ssip_driver);
EXPORT_SYMBOL_GPL(hsi_register_client_driver);
int hsi_register_client_driver(struct hsi_client_driver *drv);