51 	struct uart_port        port;  member
63 	return readl(up->port.membase + offset);  in serial_in()
69 	writel(value, up->port.membase + offset);  in serial_out()
72 static void serial_pxa_enable_ms(struct uart_port *port)  in serial_pxa_enable_ms()  argument
74 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_enable_ms()
80 static void serial_pxa_stop_tx(struct uart_port *port)  in serial_pxa_stop_tx()  argument
82 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_stop_tx()
90 static void serial_pxa_stop_rx(struct uart_port *port)  in serial_pxa_stop_rx()  argument
92 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_stop_rx()
95 	up->port.read_status_mask &= ~UART_LSR_DR;  in serial_pxa_stop_rx()
117 		up->port.icount.rx++;  in receive_chars()
126 				up->port.icount.brk++;  in receive_chars()
133 				if (uart_handle_break(&up->port))  in receive_chars()
136 				up->port.icount.parity++;  in receive_chars()
138 				up->port.icount.frame++;  in receive_chars()
140 				up->port.icount.overrun++;  in receive_chars()
145 			*status &= up->port.read_status_mask;  in receive_chars()
148 			if (up->port.line == up->port.cons->index) {  in receive_chars()
162 		if (uart_handle_sysrq_char(&up->port, ch))  in receive_chars()
165 		uart_insert_char(&up->port, *status, UART_LSR_OE, ch, flag);  in receive_chars()
170 	tty_flip_buffer_push(&up->port.state->port);  in receive_chars()
185 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars()
188 	if (up->port.x_char) {  in transmit_chars()
189 		serial_out(up, UART_TX, up->port.x_char);  in transmit_chars()
190 		up->port.icount.tx++;  in transmit_chars()
191 		up->port.x_char = 0;  in transmit_chars()
194 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars()
195 		serial_pxa_stop_tx(&up->port);  in transmit_chars()
199 	count = up->port.fifosize / 2;  in transmit_chars()
203 		up->port.icount.tx++;  in transmit_chars()
209 		uart_write_wakeup(&up->port);  in transmit_chars()
213 		serial_pxa_stop_tx(&up->port);  in transmit_chars()
216 static void serial_pxa_start_tx(struct uart_port *port)  in serial_pxa_start_tx()  argument
218 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_start_tx()
237 		up->port.icount.rng++;  in check_modem_status()
239 		up->port.icount.dsr++;  in check_modem_status()
241 		uart_handle_dcd_change(&up->port, status & UART_MSR_DCD);  in check_modem_status()
243 		uart_handle_cts_change(&up->port, status & UART_MSR_CTS);  in check_modem_status()
245 	wake_up_interruptible(&up->port.state->port.delta_msr_wait);  in check_modem_status()
259 	spin_lock(&up->port.lock);  in serial_pxa_irq()
266 	spin_unlock(&up->port.lock);  in serial_pxa_irq()
270 static unsigned int serial_pxa_tx_empty(struct uart_port *port)  in serial_pxa_tx_empty()  argument
272 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_tx_empty()
276 	spin_lock_irqsave(&up->port.lock, flags);  in serial_pxa_tx_empty()
278 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_pxa_tx_empty()
283 static unsigned int serial_pxa_get_mctrl(struct uart_port *port)  in serial_pxa_get_mctrl()  argument
285 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_get_mctrl()
303 static void serial_pxa_set_mctrl(struct uart_port *port, unsigned int mctrl)  in serial_pxa_set_mctrl()  argument
305 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_set_mctrl()
324 static void serial_pxa_break_ctl(struct uart_port *port, int break_state)  in serial_pxa_break_ctl()  argument
326 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_break_ctl()
329 	spin_lock_irqsave(&up->port.lock, flags);  in serial_pxa_break_ctl()
335 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_pxa_break_ctl()
338 static int serial_pxa_startup(struct uart_port *port)  in serial_pxa_startup()  argument
340 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_startup()
344 	if (port->line == 3) /* HWUART */  in serial_pxa_startup()
349 	up->port.uartclk = clk_get_rate(up->clk);  in serial_pxa_startup()
354 	retval = request_irq(up->port.irq, serial_pxa_irq, 0, up->name, up);  in serial_pxa_startup()
380 	spin_lock_irqsave(&up->port.lock, flags);  in serial_pxa_startup()
381 	up->port.mctrl |= TIOCM_OUT2;  in serial_pxa_startup()
382 	serial_pxa_set_mctrl(&up->port, up->port.mctrl);  in serial_pxa_startup()
383 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_pxa_startup()
404 static void serial_pxa_shutdown(struct uart_port *port)  in serial_pxa_shutdown()  argument
406 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_shutdown()
409 	free_irq(up->port.irq, up);  in serial_pxa_shutdown()
417 	spin_lock_irqsave(&up->port.lock, flags);  in serial_pxa_shutdown()
418 	up->port.mctrl &= ~TIOCM_OUT2;  in serial_pxa_shutdown()
419 	serial_pxa_set_mctrl(&up->port, up->port.mctrl);  in serial_pxa_shutdown()
420 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_pxa_shutdown()
433 serial_pxa_set_termios(struct uart_port *port, struct ktermios *termios,  in serial_pxa_set_termios()  argument
436 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_set_termios()
468 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);  in serial_pxa_set_termios()
469 	quot = uart_get_divisor(port, baud);  in serial_pxa_set_termios()
471 	if ((up->port.uartclk / quot) < (2400 * 16))  in serial_pxa_set_termios()
473 	else if ((up->port.uartclk / quot) < (230400 * 16))  in serial_pxa_set_termios()
482 	spin_lock_irqsave(&up->port.lock, flags);  in serial_pxa_set_termios()
493 	uart_update_timeout(port, termios->c_cflag, baud);  in serial_pxa_set_termios()
495 	up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;  in serial_pxa_set_termios()
497 		up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;  in serial_pxa_set_termios()
499 		up->port.read_status_mask |= UART_LSR_BI;  in serial_pxa_set_termios()
504 	up->port.ignore_status_mask = 0;  in serial_pxa_set_termios()
506 		up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;  in serial_pxa_set_termios()
508 		up->port.ignore_status_mask |= UART_LSR_BI;  in serial_pxa_set_termios()
514 			up->port.ignore_status_mask |= UART_LSR_OE;  in serial_pxa_set_termios()
521 		up->port.ignore_status_mask |= UART_LSR_DR;  in serial_pxa_set_termios()
527 	if (UART_ENABLE_MS(&up->port, termios->c_cflag))  in serial_pxa_set_termios()
550 	serial_pxa_set_mctrl(&up->port, up->port.mctrl);  in serial_pxa_set_termios()
552 	spin_unlock_irqrestore(&up->port.lock, flags);  in serial_pxa_set_termios()
556 serial_pxa_pm(struct uart_port *port, unsigned int state,  in serial_pxa_pm()  argument
559 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_pm()
567 static void serial_pxa_release_port(struct uart_port *port)  in serial_pxa_release_port()  argument
571 static int serial_pxa_request_port(struct uart_port *port)  in serial_pxa_request_port()  argument
576 static void serial_pxa_config_port(struct uart_port *port, int flags)  in serial_pxa_config_port()  argument
578 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_config_port()
579 	up->port.type = PORT_PXA;  in serial_pxa_config_port()
583 serial_pxa_verify_port(struct uart_port *port, struct serial_struct *ser)  in serial_pxa_verify_port()  argument
590 serial_pxa_type(struct uart_port *port)  in serial_pxa_type()  argument
592 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_type()
623 	if (up->port.flags & UPF_CONS_FLOW) {  in wait_for_xmitr()
631 static void serial_pxa_console_putchar(struct uart_port *port, int ch)  in serial_pxa_console_putchar()  argument
633 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_console_putchar()
655 	if (up->port.sysrq)  in serial_pxa_console_write()
658 		locked = spin_trylock(&up->port.lock);  in serial_pxa_console_write()
660 		spin_lock(&up->port.lock);  in serial_pxa_console_write()
668 	uart_console_write(&up->port, s, count, serial_pxa_console_putchar);  in serial_pxa_console_write()
678 		spin_unlock(&up->port.lock);  in serial_pxa_console_write()
690 static int serial_pxa_get_poll_char(struct uart_port *port)  in serial_pxa_get_poll_char()  argument
692 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_get_poll_char()
702 static void serial_pxa_put_poll_char(struct uart_port *port,  in serial_pxa_put_poll_char()  argument
706 	struct uart_pxa_port *up = (struct uart_pxa_port *)port;  in serial_pxa_put_poll_char()
748 	return uart_set_options(&up->port, co, baud, parity, bits, flow);  in serial_pxa_console_setup()
806                 uart_suspend_port(&serial_pxa_reg, &sport->port);  in serial_pxa_suspend()
816                 uart_resume_port(&serial_pxa_reg, &sport->port);  in serial_pxa_resume()
848 	sport->port.line = ret;  in serial_pxa_probe_dt()
879 	sport->port.type = PORT_PXA;  in serial_pxa_probe()
880 	sport->port.iotype = UPIO_MEM;  in serial_pxa_probe()
881 	sport->port.mapbase = mmres->start;  in serial_pxa_probe()
882 	sport->port.irq = irqres->start;  in serial_pxa_probe()
883 	sport->port.fifosize = 64;  in serial_pxa_probe()
884 	sport->port.ops = &serial_pxa_pops;  in serial_pxa_probe()
885 	sport->port.dev = &dev->dev;  in serial_pxa_probe()
886 	sport->port.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;  in serial_pxa_probe()
887 	sport->port.uartclk = clk_get_rate(sport->clk);  in serial_pxa_probe()
891 		sport->port.line = dev->id;  in serial_pxa_probe()
894 	snprintf(sport->name, PXA_NAME_LEN - 1, "UART%d", sport->port.line + 1);  in serial_pxa_probe()
896 	sport->port.membase = ioremap(mmres->start, resource_size(mmres));  in serial_pxa_probe()
897 	if (!sport->port.membase) {  in serial_pxa_probe()
902 	serial_pxa_ports[sport->port.line] = sport;  in serial_pxa_probe()
904 	uart_add_one_port(&serial_pxa_reg, &sport->port);  in serial_pxa_probe()
921 	uart_remove_one_port(&serial_pxa_reg, &sport->port);  in serial_pxa_remove()