51 static int uart_dcd_enabled(struct uart_port *uport)  in uart_dcd_enabled()  argument
53 	return !!(uport->status & UPSTAT_DCD_ENABLE);  in uart_dcd_enabled()
63 static inline void uart_port_deref(struct uart_port *uport)  in uart_port_deref()  argument
65 	if (atomic_dec_and_test(&uport->state->refcount))  in uart_port_deref()
66 		wake_up(&uport->state->remove_wait);  in uart_port_deref()
77 #define uart_port_unlock(uport, flags)					\  argument
79 		struct uart_port *__uport = uport;			\
156 static void uart_port_dtr_rts(struct uart_port *uport, int raise)  in uart_port_dtr_rts()  argument
158 	int rs485_on = uport->rs485_config &&  in uart_port_dtr_rts()
159 		(uport->rs485.flags & SER_RS485_ENABLED);  in uart_port_dtr_rts()
160 	int RTS_after_send = !!(uport->rs485.flags & SER_RS485_RTS_AFTER_SEND);  in uart_port_dtr_rts()
164 			uart_set_mctrl(uport, TIOCM_DTR);  in uart_port_dtr_rts()
165 			uart_clear_mctrl(uport, TIOCM_RTS);  in uart_port_dtr_rts()
167 			uart_set_mctrl(uport, TIOCM_DTR | TIOCM_RTS);  in uart_port_dtr_rts()
173 		uart_clear_mctrl(uport, clear);  in uart_port_dtr_rts()
184 	struct uart_port *uport = uart_port_check(state);  in uart_port_startup()  local
189 	if (uport->type == PORT_UNKNOWN)  in uart_port_startup()
209 		uart_port_unlock(uport, flags);  in uart_port_startup()
211 		uart_port_unlock(uport, flags);  in uart_port_startup()
219 	retval = uport->ops->startup(uport);  in uart_port_startup()
221 		if (uart_console(uport) && uport->cons->cflag) {  in uart_port_startup()
222 			tty->termios.c_cflag = uport->cons->cflag;  in uart_port_startup()
223 			uport->cons->cflag = 0;  in uart_port_startup()
235 			uart_port_dtr_rts(uport, 1);  in uart_port_startup()
274 	struct uart_port *uport = uart_port_check(state);  in uart_shutdown()  local
291 		if (uport && uart_console(uport) && tty)  in uart_shutdown()
292 			uport->cons->cflag = tty->termios.c_cflag;  in uart_shutdown()
295 			uart_port_dtr_rts(uport, 0);  in uart_shutdown()
316 	uart_port_unlock(uport, flags);  in uart_shutdown()
503 	struct uart_port *uport = uart_port_check(state);  in uart_change_speed()  local
511 	if (!tty || uport->type == PORT_UNKNOWN)  in uart_change_speed()
515 	uport->ops->set_termios(uport, termios, old_termios);  in uart_change_speed()
520 	spin_lock_irq(&uport->lock);  in uart_change_speed()
522 		uport->status |= UPSTAT_CTS_ENABLE;  in uart_change_speed()
524 		uport->status &= ~UPSTAT_CTS_ENABLE;  in uart_change_speed()
527 		uport->status &= ~UPSTAT_DCD_ENABLE;  in uart_change_speed()
529 		uport->status |= UPSTAT_DCD_ENABLE;  in uart_change_speed()
532 	hw_stopped = uport->hw_stopped;  in uart_change_speed()
533 	uport->hw_stopped = uart_softcts_mode(uport) &&  in uart_change_speed()
534 				!(uport->ops->get_mctrl(uport) & TIOCM_CTS);  in uart_change_speed()
535 	if (uport->hw_stopped) {  in uart_change_speed()
537 			uport->ops->stop_tx(uport);  in uart_change_speed()
542 	spin_unlock_irq(&uport->lock);  in uart_change_speed()
757 	struct uart_port *uport;  in uart_get_info()  local
767 	uport = uart_port_check(state);  in uart_get_info()
768 	if (!uport)  in uart_get_info()
771 	retinfo->type	    = uport->type;  in uart_get_info()
772 	retinfo->line	    = uport->line;  in uart_get_info()
773 	retinfo->port	    = uport->iobase;  in uart_get_info()
775 		retinfo->port_high = (long) uport->iobase >> HIGH_BITS_OFFSET;  in uart_get_info()
776 	retinfo->irq		    = uport->irq;  in uart_get_info()
777 	retinfo->flags	    = (__force int)uport->flags;  in uart_get_info()
778 	retinfo->xmit_fifo_size  = uport->fifosize;  in uart_get_info()
779 	retinfo->baud_base	    = uport->uartclk / 16;  in uart_get_info()
784 	retinfo->custom_divisor  = uport->custom_divisor;  in uart_get_info()
785 	retinfo->hub6	    = uport->hub6;  in uart_get_info()
786 	retinfo->io_type         = uport->iotype;  in uart_get_info()
787 	retinfo->iomem_reg_shift = uport->regshift;  in uart_get_info()
788 	retinfo->iomem_base      = (void *)(unsigned long)uport->mapbase;  in uart_get_info()
809 	struct uart_port *uport = uart_port_check(state);  in uart_set_info()  local
816 	if (!uport)  in uart_set_info()
830 	change_irq  = !(uport->flags & UPF_FIXED_PORT)  in uart_set_info()
831 		&& new_info->irq != uport->irq;  in uart_set_info()
838 	change_port = !(uport->flags & UPF_FIXED_PORT)  in uart_set_info()
839 		&& (new_port != uport->iobase ||  in uart_set_info()
840 		    (unsigned long)new_info->iomem_base != uport->mapbase ||  in uart_set_info()
841 		    new_info->hub6 != uport->hub6 ||  in uart_set_info()
842 		    new_info->io_type != uport->iotype ||  in uart_set_info()
843 		    new_info->iomem_reg_shift != uport->regshift ||  in uart_set_info()
844 		    new_info->type != uport->type);  in uart_set_info()
846 	old_flags = uport->flags;  in uart_set_info()
848 	old_custom_divisor = uport->custom_divisor;  in uart_set_info()
853 		    (new_info->baud_base != uport->uartclk / 16) ||  in uart_set_info()
857 		     new_info->xmit_fifo_size != uport->fifosize) ||  in uart_set_info()
860 		uport->flags = ((uport->flags & ~UPF_USR_MASK) |  in uart_set_info()
862 		uport->custom_divisor = new_info->custom_divisor;  in uart_set_info()
873 	if (uport->ops->verify_port)  in uart_set_info()
874 		retval = uport->ops->verify_port(uport, new_info);  in uart_set_info()
903 		old_iobase = uport->iobase;  in uart_set_info()
904 		old_mapbase = uport->mapbase;  in uart_set_info()
905 		old_type = uport->type;  in uart_set_info()
906 		old_hub6 = uport->hub6;  in uart_set_info()
907 		old_iotype = uport->iotype;  in uart_set_info()
908 		old_shift = uport->regshift;  in uart_set_info()
913 		if (old_type != PORT_UNKNOWN && uport->ops->release_port)  in uart_set_info()
914 			uport->ops->release_port(uport);  in uart_set_info()
916 		uport->iobase = new_port;  in uart_set_info()
917 		uport->type = new_info->type;  in uart_set_info()
918 		uport->hub6 = new_info->hub6;  in uart_set_info()
919 		uport->iotype = new_info->io_type;  in uart_set_info()
920 		uport->regshift = new_info->iomem_reg_shift;  in uart_set_info()
921 		uport->mapbase = (unsigned long)new_info->iomem_base;  in uart_set_info()
926 		if (uport->type != PORT_UNKNOWN && uport->ops->request_port) {  in uart_set_info()
927 			retval = uport->ops->request_port(uport);  in uart_set_info()
938 			uport->iobase = old_iobase;  in uart_set_info()
939 			uport->type = old_type;  in uart_set_info()
940 			uport->hub6 = old_hub6;  in uart_set_info()
941 			uport->iotype = old_iotype;  in uart_set_info()
942 			uport->regshift = old_shift;  in uart_set_info()
943 			uport->mapbase = old_mapbase;  in uart_set_info()
946 				retval = uport->ops->request_port(uport);  in uart_set_info()
952 					uport->type = PORT_UNKNOWN;  in uart_set_info()
966 		uport->irq      = new_info->irq;  in uart_set_info()
967 	if (!(uport->flags & UPF_FIXED_PORT))  in uart_set_info()
968 		uport->uartclk  = new_info->baud_base * 16;  in uart_set_info()
969 	uport->flags            = (uport->flags & ~UPF_CHANGE_MASK) |  in uart_set_info()
971 	uport->custom_divisor   = new_info->custom_divisor;  in uart_set_info()
975 		uport->fifosize = new_info->xmit_fifo_size;  in uart_set_info()
976 	port->low_latency = (uport->flags & UPF_LOW_LATENCY) ? 1 : 0;  in uart_set_info()
980 	if (uport->type == PORT_UNKNOWN)  in uart_set_info()
983 		if (((old_flags ^ uport->flags) & UPF_SPD_MASK) ||  in uart_set_info()
984 		    old_custom_divisor != uport->custom_divisor) {  in uart_set_info()
989 			if (uport->flags & UPF_SPD_MASK) {  in uart_set_info()
990 				dev_notice_ratelimited(uport->dev,  in uart_set_info()
1038 	struct uart_port *uport = uart_port_check(state);  in uart_get_lsr_info()  local
1041 	result = uport->ops->tx_empty(uport);  in uart_get_lsr_info()
1049 	if (uport->x_char ||  in uart_get_lsr_info()
1051 	     !uart_tx_stopped(uport)))  in uart_get_lsr_info()
1061 	struct uart_port *uport;  in uart_tiocmget()  local
1065 	uport = uart_port_check(state);  in uart_tiocmget()
1066 	if (!uport)  in uart_tiocmget()
1070 		result = uport->mctrl;  in uart_tiocmget()
1071 		spin_lock_irq(&uport->lock);  in uart_tiocmget()
1072 		result |= uport->ops->get_mctrl(uport);  in uart_tiocmget()
1073 		spin_unlock_irq(&uport->lock);  in uart_tiocmget()
1085 	struct uart_port *uport;  in uart_tiocmset()  local
1089 	uport = uart_port_check(state);  in uart_tiocmset()
1090 	if (!uport)  in uart_tiocmset()
1094 		uart_update_mctrl(uport, set, clear);  in uart_tiocmset()
1106 	struct uart_port *uport;  in uart_break_ctl()  local
1110 	uport = uart_port_check(state);  in uart_break_ctl()
1111 	if (!uport)  in uart_break_ctl()
1114 	if (uport->type != PORT_UNKNOWN)  in uart_break_ctl()
1115 		uport->ops->break_ctl(uport, break_state);  in uart_break_ctl()
1125 	struct uart_port *uport;  in uart_do_autoconfig()  local
1139 	uport = uart_port_check(state);  in uart_do_autoconfig()
1140 	if (!uport) {  in uart_do_autoconfig()
1153 		if (uport->type != PORT_UNKNOWN && uport->ops->release_port)  in uart_do_autoconfig()
1154 			uport->ops->release_port(uport);  in uart_do_autoconfig()
1157 		if (uport->flags & UPF_AUTO_IRQ)  in uart_do_autoconfig()
1164 		uport->ops->config_port(uport, flags);  in uart_do_autoconfig()
1177 static void uart_enable_ms(struct uart_port *uport)  in uart_enable_ms()  argument
1182 	if (uport->ops->enable_ms)  in uart_enable_ms()
1183 		uport->ops->enable_ms(uport);  in uart_enable_ms()
1197 	struct uart_port *uport;  in uart_wait_modem_status()  local
1206 	uport = uart_port_ref(state);  in uart_wait_modem_status()
1207 	if (!uport)  in uart_wait_modem_status()
1209 	spin_lock_irq(&uport->lock);  in uart_wait_modem_status()
1210 	memcpy(&cprev, &uport->icount, sizeof(struct uart_icount));  in uart_wait_modem_status()
1211 	uart_enable_ms(uport);  in uart_wait_modem_status()
1212 	spin_unlock_irq(&uport->lock);  in uart_wait_modem_status()
1216 		spin_lock_irq(&uport->lock);  in uart_wait_modem_status()
1217 		memcpy(&cnow, &uport->icount, sizeof(struct uart_icount));  in uart_wait_modem_status()
1218 		spin_unlock_irq(&uport->lock);  in uart_wait_modem_status()
1242 	uart_port_deref(uport);  in uart_wait_modem_status()
1258 	struct uart_port *uport;  in uart_get_icount()  local
1260 	uport = uart_port_ref(state);  in uart_get_icount()
1261 	if (!uport)  in uart_get_icount()
1263 	spin_lock_irq(&uport->lock);  in uart_get_icount()
1264 	memcpy(&cnow, &uport->icount, sizeof(struct uart_icount));  in uart_get_icount()
1265 	spin_unlock_irq(&uport->lock);  in uart_get_icount()
1266 	uart_port_deref(uport);  in uart_get_icount()
1384 	struct uart_port *uport;  in uart_ioctl()  local
1421 	uport = uart_port_check(state);  in uart_ioctl()
1423 	if (!uport || tty_io_error(tty)) {  in uart_ioctl()
1439 		ret = uart_get_rs485_config(uport, uarg);  in uart_ioctl()
1443 		ret = uart_set_rs485_config(uport, uarg);  in uart_ioctl()
1454 		if (uport->ops->ioctl)  in uart_ioctl()
1455 			ret = uport->ops->ioctl(uport, cmd, arg);  in uart_ioctl()
1467 	struct uart_port *uport;  in uart_set_ldisc()  local
1470 	uport = uart_port_check(state);  in uart_set_ldisc()
1471 	if (uport && uport->ops->set_ldisc)  in uart_set_ldisc()
1472 		uport->ops->set_ldisc(uport, &tty->termios);  in uart_set_ldisc()
1480 	struct uart_port *uport;  in uart_set_termios()  local
1486 	uport = uart_port_check(state);  in uart_set_termios()
1487 	if (!uport)  in uart_set_termios()
1494 	if (uport->flags & UPF_SOFT_FLOW) {  in uart_set_termios()
1521 		uart_clear_mctrl(uport, TIOCM_RTS | TIOCM_DTR);  in uart_set_termios()
1527 		uart_set_mctrl(uport, mask);  in uart_set_termios()
1562 	struct uart_port *uport = uart_port_check(state);  in uart_tty_port_shutdown()  local
1568 	if (WARN(!uport, "detached port still initialized!\n"))  in uart_tty_port_shutdown()
1571 	spin_lock_irq(&uport->lock);  in uart_tty_port_shutdown()
1572 	uport->ops->stop_rx(uport);  in uart_tty_port_shutdown()
1573 	spin_unlock_irq(&uport->lock);  in uart_tty_port_shutdown()
1659 	struct uart_port *uport;  in uart_hangup()  local
1665 	uport = uart_port_check(state);  in uart_hangup()
1666 	WARN(!uport, "hangup of detached port!\n");  in uart_hangup()
1676 		if (uport && !uart_console(uport))  in uart_hangup()
1688 	struct uart_port *uport = uart_port_check(state);  in uart_port_shutdown()  local
1702 	if (uport)  in uart_port_shutdown()
1703 		uport->ops->shutdown(uport);  in uart_port_shutdown()
1708 	if (uport)  in uart_port_shutdown()
1709 		synchronize_irq(uport->irq);  in uart_port_shutdown()
1715 	struct uart_port *uport;  in uart_carrier_raised()  local
1718 	uport = uart_port_ref(state);  in uart_carrier_raised()
1725 	if (WARN_ON(!uport))  in uart_carrier_raised()
1727 	spin_lock_irq(&uport->lock);  in uart_carrier_raised()
1728 	uart_enable_ms(uport);  in uart_carrier_raised()
1729 	mctrl = uport->ops->get_mctrl(uport);  in uart_carrier_raised()
1730 	spin_unlock_irq(&uport->lock);  in uart_carrier_raised()
1731 	uart_port_deref(uport);  in uart_carrier_raised()
1740 	struct uart_port *uport;  in uart_dtr_rts()  local
1742 	uport = uart_port_ref(state);  in uart_dtr_rts()
1743 	if (!uport)  in uart_dtr_rts()
1745 	uart_port_dtr_rts(uport, raise);  in uart_dtr_rts()
1746 	uart_port_deref(uport);  in uart_dtr_rts()
1784 	struct uart_port *uport;  in uart_port_activate()  local
1787 	uport = uart_port_check(state);  in uart_port_activate()
1788 	if (!uport || uport->flags & UPF_DEAD)  in uart_port_activate()
1791 	port->low_latency = (uport->flags & UPF_LOW_LATENCY) ? 1 : 0;  in uart_port_activate()
1823 	struct uart_port *uport;  in uart_line_info()  local
1829 	uport = uart_port_check(state);  in uart_line_info()
1830 	if (!uport)  in uart_line_info()
1833 	mmio = uport->iotype >= UPIO_MEM;  in uart_line_info()
1835 			uport->line, uart_type(uport),  in uart_line_info()
1837 			mmio ? (unsigned long long)uport->mapbase  in uart_line_info()
1838 			     : (unsigned long long)uport->iobase,  in uart_line_info()
1839 			uport->irq);  in uart_line_info()
1841 	if (uport->type == PORT_UNKNOWN) {  in uart_line_info()
1850 		spin_lock_irq(&uport->lock);  in uart_line_info()
1851 		status = uport->ops->get_mctrl(uport);  in uart_line_info()
1852 		spin_unlock_irq(&uport->lock);  in uart_line_info()
1857 				uport->icount.tx, uport->icount.rx);  in uart_line_info()
1858 		if (uport->icount.frame)  in uart_line_info()
1859 			seq_printf(m, " fe:%d",	uport->icount.frame);  in uart_line_info()
1860 		if (uport->icount.parity)  in uart_line_info()
1861 			seq_printf(m, " pe:%d",	uport->icount.parity);  in uart_line_info()
1862 		if (uport->icount.brk)  in uart_line_info()
1863 			seq_printf(m, " brk:%d", uport->icount.brk);  in uart_line_info()
1864 		if (uport->icount.overrun)  in uart_line_info()
1865 			seq_printf(m, " oe:%d", uport->icount.overrun);  in uart_line_info()
1866 		if (uport->icount.buf_overrun)  in uart_line_info()
1867 			seq_printf(m, " bo:%d", uport->icount.buf_overrun);  in uart_line_info()
1870 	if (uport->mctrl & (bit)) \  in uart_line_info()
2150 int uart_suspend_port(struct uart_driver *drv, struct uart_port *uport)  in uart_suspend_port()  argument
2152 	struct uart_state *state = drv->state + uport->line;  in uart_suspend_port()
2155 	struct uart_match match = {uport, drv};  in uart_suspend_port()
2159 	tty_dev = device_find_child(uport->dev, &match, serial_match_port);  in uart_suspend_port()
2161 		enable_irq_wake(uport->irq);  in uart_suspend_port()
2169 	if (!console_suspend_enabled && uart_console(uport))  in uart_suspend_port()
2172 	uport->suspended = 1;  in uart_suspend_port()
2175 		const struct uart_ops *ops = uport->ops;  in uart_suspend_port()
2181 		spin_lock_irq(&uport->lock);  in uart_suspend_port()
2182 		ops->stop_tx(uport);  in uart_suspend_port()
2183 		ops->set_mctrl(uport, 0);  in uart_suspend_port()
2184 		ops->stop_rx(uport);  in uart_suspend_port()
2185 		spin_unlock_irq(&uport->lock);  in uart_suspend_port()
2190 		for (tries = 3; !ops->tx_empty(uport) && tries; tries--)  in uart_suspend_port()
2193 			dev_err(uport->dev, "%s: Unable to drain transmitter\n",  in uart_suspend_port()
2194 				uport->name);  in uart_suspend_port()
2196 		ops->shutdown(uport);  in uart_suspend_port()
2202 	if (uart_console(uport))  in uart_suspend_port()
2203 		console_stop(uport->cons);  in uart_suspend_port()
2212 int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)  in uart_resume_port()  argument
2214 	struct uart_state *state = drv->state + uport->line;  in uart_resume_port()
2217 	struct uart_match match = {uport, drv};  in uart_resume_port()
2222 	tty_dev = device_find_child(uport->dev, &match, serial_match_port);  in uart_resume_port()
2223 	if (!uport->suspended && device_may_wakeup(tty_dev)) {  in uart_resume_port()
2224 		if (irqd_is_wakeup_set(irq_get_irq_data((uport->irq))))  in uart_resume_port()
2225 			disable_irq_wake(uport->irq);  in uart_resume_port()
2231 	uport->suspended = 0;  in uart_resume_port()
2236 	if (uart_console(uport)) {  in uart_resume_port()
2241 		termios.c_cflag = uport->cons->cflag;  in uart_resume_port()
2251 		uport->ops->set_termios(uport, &termios, NULL);  in uart_resume_port()
2253 			console_start(uport->cons);  in uart_resume_port()
2257 		const struct uart_ops *ops = uport->ops;  in uart_resume_port()
2261 		spin_lock_irq(&uport->lock);  in uart_resume_port()
2262 		ops->set_mctrl(uport, 0);  in uart_resume_port()
2263 		spin_unlock_irq(&uport->lock);  in uart_resume_port()
2264 		if (console_suspend_enabled || !uart_console(uport)) {  in uart_resume_port()
2267 			ret = ops->startup(uport);  in uart_resume_port()
2271 				spin_lock_irq(&uport->lock);  in uart_resume_port()
2272 				ops->set_mctrl(uport, uport->mctrl);  in uart_resume_port()
2273 				ops->start_tx(uport);  in uart_resume_port()
2274 				spin_unlock_irq(&uport->lock);  in uart_resume_port()
2787 int uart_add_one_port(struct uart_driver *drv, struct uart_port *uport)  in uart_add_one_port()  argument
2797 	if (uport->line >= drv->nr)  in uart_add_one_port()
2800 	state = drv->state + uport->line;  in uart_add_one_port()
2813 	state->uart_port = uport;  in uart_add_one_port()
2814 	uport->state = state;  in uart_add_one_port()
2817 	uport->cons = drv->cons;  in uart_add_one_port()
2818 	uport->minor = drv->tty_driver->minor_start + uport->line;  in uart_add_one_port()
2819 	uport->name = kasprintf(GFP_KERNEL, "%s%d", drv->dev_name,  in uart_add_one_port()
2820 				drv->tty_driver->name_base + uport->line);  in uart_add_one_port()
2821 	if (!uport->name) {  in uart_add_one_port()
2830 	if (!(uart_console(uport) && (uport->cons->flags & CON_ENABLED))) {  in uart_add_one_port()
2831 		spin_lock_init(&uport->lock);  in uart_add_one_port()
2832 		lockdep_set_class(&uport->lock, &port_lock_key);  in uart_add_one_port()
2834 	if (uport->cons && uport->dev)  in uart_add_one_port()
2835 		of_console_check(uport->dev->of_node, uport->cons->name, uport->line);  in uart_add_one_port()
2837 	uart_configure_port(drv, state, uport);  in uart_add_one_port()
2839 	port->console = uart_console(uport);  in uart_add_one_port()
2842 	if (uport->attr_group)  in uart_add_one_port()
2845 	uport->tty_groups = kcalloc(num_groups, sizeof(*uport->tty_groups),  in uart_add_one_port()
2847 	if (!uport->tty_groups) {  in uart_add_one_port()
2851 	uport->tty_groups[0] = &tty_dev_attr_group;  in uart_add_one_port()
2852 	if (uport->attr_group)  in uart_add_one_port()
2853 		uport->tty_groups[1] = uport->attr_group;  in uart_add_one_port()
2860 			uport->line, uport->dev, port, uport->tty_groups);  in uart_add_one_port()
2864 		dev_err(uport->dev, "Cannot register tty device on line %d\n",  in uart_add_one_port()
2865 		       uport->line);  in uart_add_one_port()
2871 	uport->flags &= ~UPF_DEAD;  in uart_add_one_port()
2889 int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport)  in uart_remove_one_port()  argument
2891 	struct uart_state *state = drv->state + uport->line;  in uart_remove_one_port()
2907 	if (uart_port != uport)  in uart_remove_one_port()
2908 		dev_alert(uport->dev, "Removing wrong port: %p != %p\n",  in uart_remove_one_port()
2909 			  uart_port, uport);  in uart_remove_one_port()
2916 	uport->flags |= UPF_DEAD;  in uart_remove_one_port()
2922 	tty_port_unregister_device(port, drv->tty_driver, uport->line);  in uart_remove_one_port()
2933 	if (uart_console(uport))  in uart_remove_one_port()
2934 		unregister_console(uport->cons);  in uart_remove_one_port()
2939 	if (uport->type != PORT_UNKNOWN && uport->ops->release_port)  in uart_remove_one_port()
2940 		uport->ops->release_port(uport);  in uart_remove_one_port()
2941 	kfree(uport->tty_groups);  in uart_remove_one_port()
2942 	kfree(uport->name);  in uart_remove_one_port()
2947 	uport->type = PORT_UNKNOWN;  in uart_remove_one_port()
2993 void uart_handle_dcd_change(struct uart_port *uport, unsigned int status)  in uart_handle_dcd_change()  argument
2995 	struct tty_port *port = &uport->state->port;  in uart_handle_dcd_change()
2999 	lockdep_assert_held_once(&uport->lock);  in uart_handle_dcd_change()
3010 	uport->icount.dcd++;  in uart_handle_dcd_change()
3012 	if (uart_dcd_enabled(uport)) {  in uart_handle_dcd_change()
3028 void uart_handle_cts_change(struct uart_port *uport, unsigned int status)  in uart_handle_cts_change()  argument
3030 	lockdep_assert_held_once(&uport->lock);  in uart_handle_cts_change()
3032 	uport->icount.cts++;  in uart_handle_cts_change()
3034 	if (uart_softcts_mode(uport)) {  in uart_handle_cts_change()
3035 		if (uport->hw_stopped) {  in uart_handle_cts_change()
3037 				uport->hw_stopped = 0;  in uart_handle_cts_change()
3038 				uport->ops->start_tx(uport);  in uart_handle_cts_change()
3039 				uart_write_wakeup(uport);  in uart_handle_cts_change()
3043 				uport->hw_stopped = 1;  in uart_handle_cts_change()
3044 				uport->ops->stop_tx(uport);  in uart_handle_cts_change()