575 	irqreturn_t ret = IRQ_NONE;  in serial_omap_irq()  local
586 		ret = IRQ_HANDLED;  in serial_omap_irq()
623 	return ret;  in serial_omap_irq()
630 	unsigned int ret = 0;  in serial_omap_tx_empty()  local
635 	ret = serial_in(up, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0;  in serial_omap_tx_empty()
639 	return ret;  in serial_omap_tx_empty()
646 	unsigned int ret = 0;  in serial_omap_get_mctrl()  local
656 		ret |= TIOCM_CAR;  in serial_omap_get_mctrl()
658 		ret |= TIOCM_RNG;  in serial_omap_get_mctrl()
660 		ret |= TIOCM_DSR;  in serial_omap_get_mctrl()
662 		ret |= TIOCM_CTS;  in serial_omap_get_mctrl()
663 	return ret;  in serial_omap_get_mctrl()
1606 	int ret;  in serial_omap_probe_rs485()  local
1614 	ret = uart_get_rs485_mode(&up->port);  in serial_omap_probe_rs485()
1615 	if (ret)  in serial_omap_probe_rs485()
1616 		return ret;  in serial_omap_probe_rs485()
1631 		ret = PTR_ERR(up->rts_gpiod);  in serial_omap_probe_rs485()
1632 	        if (ret == -EPROBE_DEFER)  in serial_omap_probe_rs485()
1633 			return ret;  in serial_omap_probe_rs485()
1654 	int ret;  in serial_omap_probe()  local
1690 		ret = of_alias_get_id(pdev->dev.of_node, "serial");  in serial_omap_probe()
1692 		ret = pdev->id;  in serial_omap_probe()
1694 	if (ret < 0) {  in serial_omap_probe()
1696 			ret);  in serial_omap_probe()
1699 	up->port.line = ret;  in serial_omap_probe()
1704 		ret = -ENXIO;  in serial_omap_probe()
1713 	ret = serial_omap_probe_rs485(up, &pdev->dev);  in serial_omap_probe()
1714 	if (ret < 0)  in serial_omap_probe()
1754 	ret = uart_add_one_port(&serial_omap_reg, &up->port);  in serial_omap_probe()
1755 	if (ret != 0)  in serial_omap_probe()
1770 	return ret;  in serial_omap_probe()
1934 	int ret;  in serial_omap_init()  local
1936 	ret = uart_register_driver(&serial_omap_reg);  in serial_omap_init()
1937 	if (ret != 0)  in serial_omap_init()
1938 		return ret;  in serial_omap_init()
1939 	ret = platform_driver_register(&serial_omap_driver);  in serial_omap_init()
1940 	if (ret != 0)  in serial_omap_init()
1942 	return ret;  in serial_omap_init()