63 	struct uart_port	port;  member
79 static void uart_clps711x_stop_tx(struct uart_port *port)  in uart_clps711x_stop_tx()  argument
81 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_stop_tx()
84 		disable_irq(port->irq);  in uart_clps711x_stop_tx()
89 static void uart_clps711x_start_tx(struct uart_port *port)  in uart_clps711x_start_tx()  argument
91 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_start_tx()
95 		enable_irq(port->irq);  in uart_clps711x_start_tx()
101 	struct uart_port *port = dev_id;  in uart_clps711x_int_rx()  local
102 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_int_rx()
113 		ch = readw(port->membase + UARTDR_OFFSET);  in uart_clps711x_int_rx()
117 		port->icount.rx++;  in uart_clps711x_int_rx()
122 				port->icount.parity++;  in uart_clps711x_int_rx()
124 				port->icount.frame++;  in uart_clps711x_int_rx()
126 				port->icount.overrun++;  in uart_clps711x_int_rx()
128 			status &= port->read_status_mask;  in uart_clps711x_int_rx()
138 		if (uart_handle_sysrq_char(port, ch))  in uart_clps711x_int_rx()
141 		if (status & port->ignore_status_mask)  in uart_clps711x_int_rx()
144 		uart_insert_char(port, status, UARTDR_OVERR, ch, flg);  in uart_clps711x_int_rx()
147 	tty_flip_buffer_push(&port->state->port);  in uart_clps711x_int_rx()
154 	struct uart_port *port = dev_id;  in uart_clps711x_int_tx()  local
155 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_int_tx()
156 	struct circ_buf *xmit = &port->state->xmit;  in uart_clps711x_int_tx()
158 	if (port->x_char) {  in uart_clps711x_int_tx()
159 		writew(port->x_char, port->membase + UARTDR_OFFSET);  in uart_clps711x_int_tx()
160 		port->icount.tx++;  in uart_clps711x_int_tx()
161 		port->x_char = 0;  in uart_clps711x_int_tx()
165 	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {  in uart_clps711x_int_tx()
167 			disable_irq_nosync(port->irq);  in uart_clps711x_int_tx()
176 		writew(xmit->buf[xmit->tail], port->membase + UARTDR_OFFSET);  in uart_clps711x_int_tx()
178 		port->icount.tx++;  in uart_clps711x_int_tx()
186 		uart_write_wakeup(port);  in uart_clps711x_int_tx()
191 static unsigned int uart_clps711x_tx_empty(struct uart_port *port)  in uart_clps711x_tx_empty()  argument
193 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_tx_empty()
201 static unsigned int uart_clps711x_get_mctrl(struct uart_port *port)  in uart_clps711x_get_mctrl()  argument
204 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_get_mctrl()
209 static void uart_clps711x_set_mctrl(struct uart_port *port, unsigned int mctrl)  in uart_clps711x_set_mctrl()  argument
211 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_set_mctrl()
216 static void uart_clps711x_break_ctl(struct uart_port *port, int break_state)  in uart_clps711x_break_ctl()  argument
220 	ubrlcr = readl(port->membase + UBRLCR_OFFSET);  in uart_clps711x_break_ctl()
225 	writel(ubrlcr, port->membase + UBRLCR_OFFSET);  in uart_clps711x_break_ctl()
228 static void uart_clps711x_set_ldisc(struct uart_port *port,  in uart_clps711x_set_ldisc()  argument
231 	if (!port->line) {  in uart_clps711x_set_ldisc()
232 		struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_set_ldisc()
239 static int uart_clps711x_startup(struct uart_port *port)  in uart_clps711x_startup()  argument
241 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_startup()
244 	writel(readl(port->membase + UBRLCR_OFFSET) & ~UBRLCR_BREAK,  in uart_clps711x_startup()
245 	       port->membase + UBRLCR_OFFSET);  in uart_clps711x_startup()
252 static void uart_clps711x_shutdown(struct uart_port *port)  in uart_clps711x_shutdown()  argument
254 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_shutdown()
260 static void uart_clps711x_set_termios(struct uart_port *port,  in uart_clps711x_set_termios()  argument
272 	baud = uart_get_baud_rate(port, termios, old, port->uartclk / 4096,  in uart_clps711x_set_termios()
273 						      port->uartclk / 16);  in uart_clps711x_set_termios()
274 	quot = uart_get_divisor(port, baud);  in uart_clps711x_set_termios()
305 	port->read_status_mask = UARTDR_OVERR;  in uart_clps711x_set_termios()
307 		port->read_status_mask |= UARTDR_PARERR | UARTDR_FRMERR;  in uart_clps711x_set_termios()
310 	port->ignore_status_mask = 0;  in uart_clps711x_set_termios()
312 		port->ignore_status_mask |= UARTDR_OVERR | UARTDR_PARERR |  in uart_clps711x_set_termios()
315 	uart_update_timeout(port, termios->c_cflag, baud);  in uart_clps711x_set_termios()
317 	writel(ubrlcr | (quot - 1), port->membase + UBRLCR_OFFSET);  in uart_clps711x_set_termios()
320 static const char *uart_clps711x_type(struct uart_port *port)  in uart_clps711x_type()  argument
322 	return (port->type == PORT_CLPS711X) ? "CLPS711X" : NULL;  in uart_clps711x_type()
325 static void uart_clps711x_config_port(struct uart_port *port, int flags)  in uart_clps711x_config_port()  argument
328 		port->type = PORT_CLPS711X;  in uart_clps711x_config_port()
331 static void uart_clps711x_nop_void(struct uart_port *port)  in uart_clps711x_nop_void()  argument
335 static int uart_clps711x_nop_int(struct uart_port *port)  in uart_clps711x_nop_int()  argument
359 static void uart_clps711x_console_putchar(struct uart_port *port, int ch)  in uart_clps711x_console_putchar()  argument
361 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_console_putchar()
369 	writew(ch, port->membase + UARTDR_OFFSET);  in uart_clps711x_console_putchar()
375 	struct uart_port *port = clps711x_uart.state[co->index].uart_port;  in uart_clps711x_console_write()  local
376 	struct clps711x_port *s = dev_get_drvdata(port->dev);  in uart_clps711x_console_write()
379 	uart_console_write(port, c, n, uart_clps711x_console_putchar);  in uart_clps711x_console_write()
392 	struct uart_port *port;  in uart_clps711x_console_setup()  local
399 	port = clps711x_uart.state[index].uart_port;  in uart_clps711x_console_setup()
400 	if (!port)  in uart_clps711x_console_setup()
403 	s = dev_get_drvdata(port->dev);  in uart_clps711x_console_setup()
410 			ubrlcr = readl(port->membase + UBRLCR_OFFSET);  in uart_clps711x_console_setup()
423 			baud = port->uartclk / (16 * (quot + 1));  in uart_clps711x_console_setup()
428 	ret = uart_set_options(port, co, baud, parity, bits, flow);  in uart_clps711x_console_setup()
466 	s->port.membase = devm_ioremap_resource(&pdev->dev, res);  in uart_clps711x_probe()
467 	if (IS_ERR(s->port.membase))  in uart_clps711x_probe()
468 		return PTR_ERR(s->port.membase);  in uart_clps711x_probe()
470 	s->port.irq = platform_get_irq(pdev, 0);  in uart_clps711x_probe()
471 	if (IS_ERR_VALUE(s->port.irq))  in uart_clps711x_probe()
472 		return s->port.irq;  in uart_clps711x_probe()
491 	s->port.line		= index;  in uart_clps711x_probe()
492 	s->port.dev		= &pdev->dev;  in uart_clps711x_probe()
493 	s->port.iotype		= UPIO_MEM32;  in uart_clps711x_probe()
494 	s->port.mapbase		= res->start;  in uart_clps711x_probe()
495 	s->port.type		= PORT_CLPS711X;  in uart_clps711x_probe()
496 	s->port.fifosize	= 16;  in uart_clps711x_probe()
497 	s->port.flags		= UPF_SKIP_TEST | UPF_FIXED_TYPE;  in uart_clps711x_probe()
498 	s->port.uartclk		= clk_get_rate(uart_clk);  in uart_clps711x_probe()
499 	s->port.ops		= &uart_clps711x_ops;  in uart_clps711x_probe()
507 	ret = uart_add_one_port(&clps711x_uart, &s->port);  in uart_clps711x_probe()
512 	if (!uart_console(&s->port))  in uart_clps711x_probe()
517 	ret = devm_request_irq(&pdev->dev, s->port.irq, uart_clps711x_int_tx, 0,  in uart_clps711x_probe()
518 			       dev_name(&pdev->dev), &s->port);  in uart_clps711x_probe()
520 		uart_remove_one_port(&clps711x_uart, &s->port);  in uart_clps711x_probe()
525 			       dev_name(&pdev->dev), &s->port);  in uart_clps711x_probe()
527 		uart_remove_one_port(&clps711x_uart, &s->port);  in uart_clps711x_probe()
536 	return uart_remove_one_port(&clps711x_uart, &s->port);  in uart_clps711x_remove()