277 	 * IIR bits on their UART, but it's specifically designed for  in serial8250_backup_timeout()
278 	 * the "Diva" UART used on the management processor on many HP  in serial8250_backup_timeout()
610 	 * Check whether an invalid uart number has been specified, and  in univ8250_console_setup()
654  *	    console=uart[8250],io|mmio|mmio16|mmio32,<addr>[,<options>]
655  *	    console=uart[8250],0x<addr>[,<options>]
667 	char match[] = "uart";	/* 8250-specific earlycon name */  in univ8250_console_match()
836 	struct uart_8250_port uart;  in serial8250_probe()  local
839 	memset(&uart, 0, sizeof(uart));  in serial8250_probe()
845 		uart.port.iobase	= p->iobase;  in serial8250_probe()
846 		uart.port.membase	= p->membase;  in serial8250_probe()
847 		uart.port.irq		= p->irq;  in serial8250_probe()
848 		uart.port.irqflags	= p->irqflags;  in serial8250_probe()
849 		uart.port.uartclk	= p->uartclk;  in serial8250_probe()
850 		uart.port.regshift	= p->regshift;  in serial8250_probe()
851 		uart.port.iotype	= p->iotype;  in serial8250_probe()
852 		uart.port.flags		= p->flags;  in serial8250_probe()
853 		uart.port.mapbase	= p->mapbase;  in serial8250_probe()
854 		uart.port.mapsize	= p->mapsize;  in serial8250_probe()
855 		uart.port.hub6		= p->hub6;  in serial8250_probe()
856 		uart.port.has_sysrq	= p->has_sysrq;  in serial8250_probe()
857 		uart.port.private_data	= p->private_data;  in serial8250_probe()
858 		uart.port.type		= p->type;  in serial8250_probe()
859 		uart.bugs		= p->bugs;  in serial8250_probe()
860 		uart.port.serial_in	= p->serial_in;  in serial8250_probe()
861 		uart.port.serial_out	= p->serial_out;  in serial8250_probe()
862 		uart.dl_read		= p->dl_read;  in serial8250_probe()
863 		uart.dl_write		= p->dl_write;  in serial8250_probe()
864 		uart.port.handle_irq	= p->handle_irq;  in serial8250_probe()
865 		uart.port.handle_break	= p->handle_break;  in serial8250_probe()
866 		uart.port.set_termios	= p->set_termios;  in serial8250_probe()
867 		uart.port.set_ldisc	= p->set_ldisc;  in serial8250_probe()
868 		uart.port.get_mctrl	= p->get_mctrl;  in serial8250_probe()
869 		uart.port.pm		= p->pm;  in serial8250_probe()
870 		uart.port.dev		= &dev->dev;  in serial8250_probe()
871 		uart.port.irqflags	|= irqflag;  in serial8250_probe()
872 		ret = serial8250_register_8250_port(&uart);  in serial8250_probe()
1016 	struct uart_8250_port *uart;  in serial8250_register_8250_port()  local
1024 	uart = serial8250_find_match_or_unused(&up->port);  in serial8250_register_8250_port()
1025 	if (!uart) {  in serial8250_register_8250_port()
1030 		uart = serial8250_setup_port(nr_uarts);  in serial8250_register_8250_port()
1031 		if (!uart)  in serial8250_register_8250_port()
1036 	if (uart->port.type != PORT_8250_CIR) {  in serial8250_register_8250_port()
1039 		if (uart->port.dev)  in serial8250_register_8250_port()
1040 			uart_remove_one_port(&serial8250_reg, &uart->port);  in serial8250_register_8250_port()
1042 		uart->port.ctrl_id	= up->port.ctrl_id;  in serial8250_register_8250_port()
1043 		uart->port.port_id	= up->port.port_id;  in serial8250_register_8250_port()
1044 		uart->port.iobase       = up->port.iobase;  in serial8250_register_8250_port()
1045 		uart->port.membase      = up->port.membase;  in serial8250_register_8250_port()
1046 		uart->port.irq          = up->port.irq;  in serial8250_register_8250_port()
1047 		uart->port.irqflags     = up->port.irqflags;  in serial8250_register_8250_port()
1048 		uart->port.uartclk      = up->port.uartclk;  in serial8250_register_8250_port()
1049 		uart->port.fifosize     = up->port.fifosize;  in serial8250_register_8250_port()
1050 		uart->port.regshift     = up->port.regshift;  in serial8250_register_8250_port()
1051 		uart->port.iotype       = up->port.iotype;  in serial8250_register_8250_port()
1052 		uart->port.flags        = up->port.flags | UPF_BOOT_AUTOCONF;  in serial8250_register_8250_port()
1053 		uart->bugs		= up->bugs;  in serial8250_register_8250_port()
1054 		uart->port.mapbase      = up->port.mapbase;  in serial8250_register_8250_port()
1055 		uart->port.mapsize      = up->port.mapsize;  in serial8250_register_8250_port()
1056 		uart->port.private_data = up->port.private_data;  in serial8250_register_8250_port()
1057 		uart->tx_loadsz		= up->tx_loadsz;  in serial8250_register_8250_port()
1058 		uart->capabilities	= up->capabilities;  in serial8250_register_8250_port()
1059 		uart->port.throttle	= up->port.throttle;  in serial8250_register_8250_port()
1060 		uart->port.unthrottle	= up->port.unthrottle;  in serial8250_register_8250_port()
1061 		uart->port.rs485_config	= up->port.rs485_config;  in serial8250_register_8250_port()
1062 		uart->port.rs485_supported = up->port.rs485_supported;  in serial8250_register_8250_port()
1063 		uart->port.rs485	= up->port.rs485;  in serial8250_register_8250_port()
1064 		uart->rs485_start_tx	= up->rs485_start_tx;  in serial8250_register_8250_port()
1065 		uart->rs485_stop_tx	= up->rs485_stop_tx;  in serial8250_register_8250_port()
1066 		uart->lsr_save_mask	= up->lsr_save_mask;  in serial8250_register_8250_port()
1067 		uart->dma		= up->dma;  in serial8250_register_8250_port()
1070 		if (uart->port.fifosize && !uart->tx_loadsz)  in serial8250_register_8250_port()
1071 			uart->tx_loadsz = uart->port.fifosize;  in serial8250_register_8250_port()
1074 			uart->port.dev = up->port.dev;  in serial8250_register_8250_port()
1075 			ret = uart_get_rs485_mode(&uart->port);  in serial8250_register_8250_port()
1081 			uart->port.type = up->port.type;  in serial8250_register_8250_port()
1087 		if (!has_acpi_companion(uart->port.dev)) {  in serial8250_register_8250_port()
1088 			gpios = mctrl_gpio_init(&uart->port, 0);  in serial8250_register_8250_port()
1093 				uart->gpios = gpios;  in serial8250_register_8250_port()
1097 		serial8250_set_defaults(uart);  in serial8250_register_8250_port()
1101 			uart->port.serial_in = up->port.serial_in;  in serial8250_register_8250_port()
1103 			uart->port.serial_out = up->port.serial_out;  in serial8250_register_8250_port()
1105 			uart->port.handle_irq = up->port.handle_irq;  in serial8250_register_8250_port()
1108 			uart->port.set_termios = up->port.set_termios;  in serial8250_register_8250_port()
1110 			uart->port.set_ldisc = up->port.set_ldisc;  in serial8250_register_8250_port()
1112 			uart->port.get_mctrl = up->port.get_mctrl;  in serial8250_register_8250_port()
1114 			uart->port.set_mctrl = up->port.set_mctrl;  in serial8250_register_8250_port()
1116 			uart->port.get_divisor = up->port.get_divisor;  in serial8250_register_8250_port()
1118 			uart->port.set_divisor = up->port.set_divisor;  in serial8250_register_8250_port()
1120 			uart->port.startup = up->port.startup;  in serial8250_register_8250_port()
1122 			uart->port.shutdown = up->port.shutdown;  in serial8250_register_8250_port()
1124 			uart->port.pm = up->port.pm;  in serial8250_register_8250_port()
1126 			uart->port.handle_break = up->port.handle_break;  in serial8250_register_8250_port()
1128 			uart->dl_read = up->dl_read;  in serial8250_register_8250_port()
1130 			uart->dl_write = up->dl_write;  in serial8250_register_8250_port()
1132 		if (uart->port.type != PORT_8250_CIR) {  in serial8250_register_8250_port()
1134 				serial8250_isa_config(0, &uart->port,  in serial8250_register_8250_port()
1135 						&uart->capabilities);  in serial8250_register_8250_port()
1137 			serial8250_apply_quirks(uart);  in serial8250_register_8250_port()
1139 						&uart->port);  in serial8250_register_8250_port()
1143 			ret = uart->port.line;  in serial8250_register_8250_port()
1145 			dev_info(uart->port.dev,  in serial8250_register_8250_port()
1147 				uart->port.iobase,  in serial8250_register_8250_port()
1148 				(unsigned long long)uart->port.mapbase,  in serial8250_register_8250_port()
1149 				uart->port.irq);  in serial8250_register_8250_port()
1154 		if (!uart->lsr_save_mask)  in serial8250_register_8250_port()
1155 			uart->lsr_save_mask = LSR_SAVE_FLAGS;	/* Use default LSR mask */  in serial8250_register_8250_port()
1159 			uart->overrun_backoff_time_ms =  in serial8250_register_8250_port()
1161 			INIT_DELAYED_WORK(&uart->overrun_backoff,  in serial8250_register_8250_port()
1164 			uart->overrun_backoff_time_ms = 0;  in serial8250_register_8250_port()
1174 	uart->port.dev = NULL;  in serial8250_register_8250_port()
1189 	struct uart_8250_port *uart = &serial8250_ports[line];  in serial8250_unregister_port()  local
1193 	if (uart->em485) {  in serial8250_unregister_port()
1196 		uart_port_lock_irqsave(&uart->port, &flags);  in serial8250_unregister_port()
1197 		serial8250_em485_destroy(uart);  in serial8250_unregister_port()
1198 		uart_port_unlock_irqrestore(&uart->port, flags);  in serial8250_unregister_port()
1201 	uart_remove_one_port(&serial8250_reg, &uart->port);  in serial8250_unregister_port()
1203 		uart->port.flags &= ~UPF_BOOT_AUTOCONF;  in serial8250_unregister_port()
1204 		uart->port.type = PORT_UNKNOWN;  in serial8250_unregister_port()
1205 		uart->port.dev = &serial8250_isa_devs->dev;  in serial8250_unregister_port()
1206 		uart->port.port_id = line;  in serial8250_unregister_port()
1207 		uart->capabilities = 0;  in serial8250_unregister_port()
1208 		serial8250_init_port(uart);  in serial8250_unregister_port()
1209 		serial8250_apply_quirks(uart);  in serial8250_unregister_port()
1210 		uart_add_one_port(&serial8250_reg, &uart->port);  in serial8250_unregister_port()
1212 		uart->port.dev = NULL;  in serial8250_unregister_port()