OPAL_LPC_IO
opal_lpc_write(opal_lpc_chip_id, OPAL_LPC_IO, port, val, 4);
rc = opal_lpc_read(opal_lpc_chip_id, OPAL_LPC_IO, port, &data, 1);
rc |= opal_lpc_debugfs_create_type(root, "io", OPAL_LPC_IO);
rc = opal_lpc_read(opal_lpc_chip_id, OPAL_LPC_IO, port, &data, 2);
rc = opal_lpc_read(opal_lpc_chip_id, OPAL_LPC_IO, port, &data, 4);
opal_lpc_write(opal_lpc_chip_id, OPAL_LPC_IO, port, val, 1);
opal_lpc_write(opal_lpc_chip_id, OPAL_LPC_IO, port, val, 2);