48 	struct uart_port	port;  member
63 	return readl(up->port.membase + offset);  in ar933x_uart_read()
69 	writel(value, up->port.membase + offset);  in ar933x_uart_write()
120 static unsigned int ar933x_uart_tx_empty(struct uart_port *port)  in ar933x_uart_tx_empty()  argument
123 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_tx_empty()
127 	spin_lock_irqsave(&up->port.lock, flags);  in ar933x_uart_tx_empty()
129 	spin_unlock_irqrestore(&up->port.lock, flags);  in ar933x_uart_tx_empty()
134 static unsigned int ar933x_uart_get_mctrl(struct uart_port *port)  in ar933x_uart_get_mctrl()  argument
139 static void ar933x_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)  in ar933x_uart_set_mctrl()  argument
143 static void ar933x_uart_start_tx(struct uart_port *port)  in ar933x_uart_start_tx()  argument
146 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_start_tx()
151 static void ar933x_uart_stop_tx(struct uart_port *port)  in ar933x_uart_stop_tx()  argument
154 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_stop_tx()
159 static void ar933x_uart_stop_rx(struct uart_port *port)  in ar933x_uart_stop_rx()  argument
162 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_stop_rx()
168 static void ar933x_uart_break_ctl(struct uart_port *port, int break_state)  in ar933x_uart_break_ctl()  argument
171 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_break_ctl()
174 	spin_lock_irqsave(&up->port.lock, flags);  in ar933x_uart_break_ctl()
181 	spin_unlock_irqrestore(&up->port.lock, flags);  in ar933x_uart_break_ctl()
235 static void ar933x_uart_set_termios(struct uart_port *port,  in ar933x_uart_set_termios()  argument
240 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_set_termios()
265 	baud = uart_get_baud_rate(port, new, old, up->min_baud, up->max_baud);  in ar933x_uart_set_termios()
266 	ar933x_uart_get_scale_step(port->uartclk, baud, &scale, &step);  in ar933x_uart_set_termios()
272 	spin_lock_irqsave(&up->port.lock, flags);  in ar933x_uart_set_termios()
279 	uart_update_timeout(port, new->c_cflag, baud);  in ar933x_uart_set_termios()
281 	up->port.ignore_status_mask = 0;  in ar933x_uart_set_termios()
285 		up->port.ignore_status_mask |= AR933X_DUMMY_STATUS_RD;  in ar933x_uart_set_termios()
302 	spin_unlock_irqrestore(&up->port.lock, flags);  in ar933x_uart_set_termios()
310 	struct tty_port *port = &up->port.state->port;  in ar933x_uart_rx_chars()  local
325 		up->port.icount.rx++;  in ar933x_uart_rx_chars()
328 		if (uart_handle_sysrq_char(&up->port, ch))  in ar933x_uart_rx_chars()
331 		if ((up->port.ignore_status_mask & AR933X_DUMMY_STATUS_RD) == 0)  in ar933x_uart_rx_chars()
332 			tty_insert_flip_char(port, ch, TTY_NORMAL);  in ar933x_uart_rx_chars()
335 	spin_unlock(&up->port.lock);  in ar933x_uart_rx_chars()
336 	tty_flip_buffer_push(port);  in ar933x_uart_rx_chars()
337 	spin_lock(&up->port.lock);  in ar933x_uart_rx_chars()
342 	struct circ_buf *xmit = &up->port.state->xmit;  in ar933x_uart_tx_chars()
345 	if (uart_tx_stopped(&up->port))  in ar933x_uart_tx_chars()
348 	count = up->port.fifosize;  in ar933x_uart_tx_chars()
356 		if (up->port.x_char) {  in ar933x_uart_tx_chars()
357 			ar933x_uart_putc(up, up->port.x_char);  in ar933x_uart_tx_chars()
358 			up->port.icount.tx++;  in ar933x_uart_tx_chars()
359 			up->port.x_char = 0;  in ar933x_uart_tx_chars()
369 		up->port.icount.tx++;  in ar933x_uart_tx_chars()
373 		uart_write_wakeup(&up->port);  in ar933x_uart_tx_chars()
388 	spin_lock(&up->port.lock);  in ar933x_uart_interrupt()
406 	spin_unlock(&up->port.lock);  in ar933x_uart_interrupt()
411 static int ar933x_uart_startup(struct uart_port *port)  in ar933x_uart_startup()  argument
414 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_startup()
418 	ret = request_irq(up->port.irq, ar933x_uart_interrupt,  in ar933x_uart_startup()
419 			  up->port.irqflags, dev_name(up->port.dev), up);  in ar933x_uart_startup()
423 	spin_lock_irqsave(&up->port.lock, flags);  in ar933x_uart_startup()
433 	spin_unlock_irqrestore(&up->port.lock, flags);  in ar933x_uart_startup()
438 static void ar933x_uart_shutdown(struct uart_port *port)  in ar933x_uart_shutdown()  argument
441 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_shutdown()
451 	free_irq(up->port.irq, up);  in ar933x_uart_shutdown()
454 static const char *ar933x_uart_type(struct uart_port *port)  in ar933x_uart_type()  argument
456 	return (port->type == PORT_AR933X) ? "AR933X UART" : NULL;  in ar933x_uart_type()
459 static void ar933x_uart_release_port(struct uart_port *port)  in ar933x_uart_release_port()  argument
464 static int ar933x_uart_request_port(struct uart_port *port)  in ar933x_uart_request_port()  argument
470 static void ar933x_uart_config_port(struct uart_port *port, int flags)  in ar933x_uart_config_port()  argument
473 		port->type = PORT_AR933X;  in ar933x_uart_config_port()
476 static int ar933x_uart_verify_port(struct uart_port *port,  in ar933x_uart_verify_port()  argument
480 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_verify_port()
531 static void ar933x_uart_console_putchar(struct uart_port *port, int ch)  in ar933x_uart_console_putchar()  argument
534 		container_of(port, struct ar933x_uart_port, port);  in ar933x_uart_console_putchar()
550 	if (up->port.sysrq)  in ar933x_uart_console_write()
553 		locked = spin_trylock(&up->port.lock);  in ar933x_uart_console_write()
555 		spin_lock(&up->port.lock);  in ar933x_uart_console_write()
563 	uart_console_write(&up->port, s, count, ar933x_uart_console_putchar);  in ar933x_uart_console_write()
575 		spin_unlock(&up->port.lock);  in ar933x_uart_console_write()
598 	return uart_set_options(&up->port, co, baud, parity, bits, flow);  in ar933x_uart_console_setup()
616 	ar933x_console_ports[up->port.line] = up;  in ar933x_uart_add_console_port()
630 	struct uart_port *port;  in ar933x_uart_probe()  local
672 	port = &up->port;  in ar933x_uart_probe()
675 	port->membase = devm_ioremap_resource(&pdev->dev, mem_res);  in ar933x_uart_probe()
676 	if (IS_ERR(port->membase))  in ar933x_uart_probe()
677 		return PTR_ERR(port->membase);  in ar933x_uart_probe()
683 	port->uartclk = clk_get_rate(up->clk);  in ar933x_uart_probe()
684 	if (!port->uartclk) {  in ar933x_uart_probe()
689 	port->mapbase = mem_res->start;  in ar933x_uart_probe()
690 	port->line = id;  in ar933x_uart_probe()
691 	port->irq = irq_res->start;  in ar933x_uart_probe()
692 	port->dev = &pdev->dev;  in ar933x_uart_probe()
693 	port->type = PORT_AR933X;  in ar933x_uart_probe()
694 	port->iotype = UPIO_MEM32;  in ar933x_uart_probe()
696 	port->regshift = 2;  in ar933x_uart_probe()
697 	port->fifosize = AR933X_UART_FIFO_SIZE;  in ar933x_uart_probe()
698 	port->ops = &ar933x_uart_ops;  in ar933x_uart_probe()
700 	baud = ar933x_uart_get_baud(port->uartclk, AR933X_UART_MAX_SCALE, 1);  in ar933x_uart_probe()
703 	baud = ar933x_uart_get_baud(port->uartclk, 0, AR933X_UART_MAX_STEP);  in ar933x_uart_probe()
708 	ret = uart_add_one_port(&ar933x_uart_driver, &up->port);  in ar933x_uart_probe()
727 		uart_remove_one_port(&ar933x_uart_driver, &up->port);  in ar933x_uart_remove()