228 	struct uart_port port;  member
334 			"PCH EG20T port[%d] regs:\n", priv->port.line);  in port_show_regs()
463 		dev_err(priv->port.dev, "Invalid Baud(div=0x%x)\n", div);  in pch_uart_hal_set_line()
471 		dev_err(priv->port.dev, "Invalid parity(0x%x)\n", parity);  in pch_uart_hal_set_line()
476 		dev_err(priv->port.dev, "Invalid bits(0x%x)\n", bits);  in pch_uart_hal_set_line()
481 		dev_err(priv->port.dev, "Invalid STB(0x%x)\n", stb);  in pch_uart_hal_set_line()
489 	dev_dbg(priv->port.dev, "%s:baud = %u, div = %04x, lcr = %02x (%lu)\n",  in pch_uart_hal_set_line()
503 		dev_err(priv->port.dev, "%s:Invalid flag(0x%x)\n",  in pch_uart_hal_fifo_reset()
523 		dev_err(priv->port.dev, "%s:Invalid DMA Mode(0x%x)\n",  in pch_uart_hal_set_fifo()
529 		dev_err(priv->port.dev, "%s:Invalid FIFO SIZE(0x%x)\n",  in pch_uart_hal_set_fifo()
535 		dev_err(priv->port.dev, "%s:Invalid TRIGGER(0x%x)\n",  in pch_uart_hal_set_fifo()
593 	struct uart_port *port = &priv->port;  in pch_uart_hal_read()  local
602 			port->icount.brk++;  in pch_uart_hal_read()
603 			if (uart_handle_break(port))  in pch_uart_hal_read()
607 		if (port->sysrq) {  in pch_uart_hal_read()
608 			if (uart_handle_sysrq_char(port, rbr))  in pch_uart_hal_read()
645 	struct uart_port *port = &priv->port;  in push_rx()  local
646 	struct tty_port *tport = &port->state->port;  in push_rx()
657 	struct uart_port *port = &priv->port;  in pop_tx_x()  local
659 	if (port->x_char) {  in pop_tx_x()
660 		dev_dbg(priv->port.dev, "%s:X character send %02x (%lu)\n",  in pop_tx_x()
661 			__func__, port->x_char, jiffies);  in pop_tx_x()
662 		buf[0] = port->x_char;  in pop_tx_x()
663 		port->x_char = 0;  in pop_tx_x()
673 	struct uart_port *port = &priv->port;  in dma_push_rx()  local
674 	struct tty_port *tport = &port->state->port;  in dma_push_rx()
679 		dev_warn(port->dev, "Rx overrun: dropping %u bytes\n",  in dma_push_rx()
686 	port->icount.rx += room;  in dma_push_rx()
691 static void pch_free_dma(struct uart_port *port)  in pch_free_dma()  argument
694 	priv = container_of(port, struct eg20t_port, port);  in pch_free_dma()
706 		dma_free_coherent(port->dev, port->fifosize, priv->rx_buf_virt,  in pch_free_dma()
728 static void pch_request_dma(struct uart_port *port)  in pch_request_dma()  argument
735 				container_of(port, struct eg20t_port, port);  in pch_request_dma()
746 	param->chan_id = priv->port.line * 2; /* Tx = 0, 2, 4, ... */  in pch_request_dma()
748 	param->tx_reg = port->mapbase + UART_TX;  in pch_request_dma()
751 		dev_err(priv->port.dev, "%s:dma_request_channel FAILS(Tx)\n",  in pch_request_dma()
760 	param->chan_id = priv->port.line * 2 + 1; /* Rx = Tx + 1 */  in pch_request_dma()
762 	param->rx_reg = port->mapbase + UART_RX;  in pch_request_dma()
765 		dev_err(priv->port.dev, "%s:dma_request_channel FAILS(Rx)\n",  in pch_request_dma()
773 	priv->rx_buf_virt = dma_alloc_coherent(port->dev, port->fifosize,  in pch_request_dma()
781 	struct uart_port *port = &priv->port;  in pch_dma_rx_complete()  local
784 	dma_sync_sg_for_cpu(port->dev, &priv->sg_rx, 1, DMA_FROM_DEVICE);  in pch_dma_rx_complete()
787 		tty_flip_buffer_push(&port->state->port);  in pch_dma_rx_complete()
796 	struct uart_port *port = &priv->port;  in pch_dma_tx_complete()  local
797 	struct circ_buf *xmit = &port->state->xmit;  in pch_dma_tx_complete()
803 		port->icount.tx += sg_dma_len(sg);  in pch_dma_tx_complete()
807 	dma_unmap_sg(port->dev, sg, priv->nent, DMA_TO_DEVICE);  in pch_dma_tx_complete()
817 	struct uart_port *port = &priv->port;  in pop_tx()  local
818 	struct circ_buf *xmit = &port->state->xmit;  in pop_tx()
820 	if (uart_tx_stopped(port) || uart_circ_empty(xmit) || count >= size)  in pop_tx()
833 	dev_dbg(priv->port.dev, "%d characters. Remained %d characters.(%lu)\n",  in pop_tx()
867 	struct uart_port *port = &priv->port;  in dma_handle_rx()  local
871 	priv = container_of(port, struct eg20t_port, port);  in dma_handle_rx()
902 	struct uart_port *port = &priv->port;  in handle_tx()  local
903 	struct circ_buf *xmit = &port->state->xmit;  in handle_tx()
910 		dev_info(priv->port.dev, "%s:Tx isn't started. (%lu)\n",  in handle_tx()
921 		port->icount.tx++;  in handle_tx()
931 		port->icount.tx += tx_size;  in handle_tx()
939 		uart_write_wakeup(port);  in handle_tx()
947 	struct uart_port *port = &priv->port;  in dma_handle_tx()  local
948 	struct circ_buf *xmit = &port->state->xmit;  in dma_handle_tx()
961 		dev_info(priv->port.dev, "%s:Tx isn't started. (%lu)\n",  in dma_handle_tx()
969 		dev_dbg(priv->port.dev, "%s:Tx is not completed. (%lu)\n",  in dma_handle_tx()
980 		port->icount.tx++;  in dma_handle_tx()
989 		dev_dbg(priv->port.dev, "%s 0 bytes return\n", __func__);  in dma_handle_tx()
991 		uart_write_wakeup(port);  in dma_handle_tx()
1005 	dev_dbg(priv->port.dev, "%s num=%d size=%d rem=%d\n",  in dma_handle_tx()
1012 		dev_err(priv->port.dev, "%s:kzalloc Failed\n", __func__);  in dma_handle_tx()
1029 	nent = dma_map_sg(port->dev, sg, num, DMA_TO_DEVICE);  in dma_handle_tx()
1031 		dev_err(priv->port.dev, "%s:dma_map_sg Failed\n", __func__);  in dma_handle_tx()
1051 		dev_err(priv->port.dev, "%s:dmaengine_prep_slave_sg Failed\n",  in dma_handle_tx()
1055 	dma_sync_sg_for_device(port->dev, priv->sg_tx_p, nent, DMA_TO_DEVICE);  in dma_handle_tx()
1069 	struct uart_port *port = &priv->port;  in pch_uart_err_ir()  local
1070 	struct tty_struct *tty = tty_port_tty_get(&port->state->port);  in pch_uart_err_ir()
1078 		port->icount.frame++;  in pch_uart_err_ir()
1083 		port->icount.parity++;  in pch_uart_err_ir()
1088 		port->icount.overrun++;  in pch_uart_err_ir()
1162 			dev_err(priv->port.dev, "%s:iid=%02x (%lu)\n", __func__,  in pch_uart_interrupt()
1177 static unsigned int pch_uart_tx_empty(struct uart_port *port)  in pch_uart_tx_empty()  argument
1181 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_tx_empty()
1189 static unsigned int pch_uart_get_mctrl(struct uart_port *port)  in pch_uart_get_mctrl()  argument
1195 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_get_mctrl()
1213 static void pch_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)  in pch_uart_set_mctrl()  argument
1216 	struct eg20t_port *priv = container_of(port, struct eg20t_port, port);  in pch_uart_set_mctrl()
1232 static void pch_uart_stop_tx(struct uart_port *port)  in pch_uart_stop_tx()  argument
1235 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_stop_tx()
1240 static void pch_uart_start_tx(struct uart_port *port)  in pch_uart_start_tx()  argument
1244 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_start_tx()
1248 			dev_dbg(priv->port.dev, "%s : Tx DMA is NOT empty.\n",  in pch_uart_start_tx()
1258 static void pch_uart_stop_rx(struct uart_port *port)  in pch_uart_stop_rx()  argument
1261 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_stop_rx()
1268 static void pch_uart_enable_ms(struct uart_port *port)  in pch_uart_enable_ms()  argument
1271 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_enable_ms()
1276 static void pch_uart_break_ctl(struct uart_port *port, int ctl)  in pch_uart_break_ctl()  argument
1281 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_break_ctl()
1288 static int pch_uart_startup(struct uart_port *port)  in pch_uart_startup()  argument
1295 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_startup()
1298 	if (port->uartclk)  in pch_uart_startup()
1299 		priv->uartclk = port->uartclk;  in pch_uart_startup()
1301 		port->uartclk = priv->uartclk;  in pch_uart_startup()
1348 	ret = request_irq(priv->port.irq, pch_uart_interrupt, IRQF_SHARED,  in pch_uart_startup()
1354 		pch_request_dma(port);  in pch_uart_startup()
1359 	uart_update_timeout(port, CS8, default_baud);  in pch_uart_startup()
1364 static void pch_uart_shutdown(struct uart_port *port)  in pch_uart_shutdown()  argument
1369 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_shutdown()
1375 		dev_err(priv->port.dev,  in pch_uart_shutdown()
1378 	pch_free_dma(port);  in pch_uart_shutdown()
1380 	free_irq(priv->port.irq, priv);  in pch_uart_shutdown()
1386 static void pch_uart_set_termios(struct uart_port *port,  in pch_uart_set_termios()  argument
1394 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_set_termios()
1431 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16);  in pch_uart_set_termios()
1434 	spin_lock(&port->lock);  in pch_uart_set_termios()
1436 	uart_update_timeout(port, termios->c_cflag, baud);  in pch_uart_set_termios()
1441 	pch_uart_set_mctrl(&priv->port, priv->port.mctrl);  in pch_uart_set_termios()
1447 	spin_unlock(&port->lock);  in pch_uart_set_termios()
1451 static const char *pch_uart_type(struct uart_port *port)  in pch_uart_type()  argument
1456 static void pch_uart_release_port(struct uart_port *port)  in pch_uart_release_port()  argument
1460 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_release_port()
1465 static int pch_uart_request_port(struct uart_port *port)  in pch_uart_request_port()  argument
1471 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_request_port()
1481 	priv->membase = port->membase = membase;  in pch_uart_request_port()
1486 static void pch_uart_config_port(struct uart_port *port, int type)  in pch_uart_config_port()  argument
1490 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_config_port()
1492 		port->type = priv->port_type;  in pch_uart_config_port()
1493 		pch_uart_request_port(port);  in pch_uart_config_port()
1497 static int pch_uart_verify_port(struct uart_port *port,  in pch_uart_verify_port()  argument
1502 	priv = container_of(port, struct eg20t_port, port);  in pch_uart_verify_port()
1504 		dev_info(priv->port.dev,  in pch_uart_verify_port()
1510 		dev_err(priv->port.dev, "%s : PCH DMA is not Loaded.\n",  in pch_uart_verify_port()
1515 			pch_request_dma(port);  in pch_uart_verify_port()
1519 		dev_info(priv->port.dev, "PCH UART: %s\n",  in pch_uart_verify_port()
1547 	if (up->port.flags & UPF_CONS_FLOW) {  in wait_for_xmitr()
1565 static int pch_uart_get_poll_char(struct uart_port *port)  in pch_uart_get_poll_char()  argument
1568 		container_of(port, struct eg20t_port, port);  in pch_uart_get_poll_char()
1578 static void pch_uart_put_poll_char(struct uart_port *port,  in pch_uart_put_poll_char()  argument
1583 		container_of(port, struct eg20t_port, port);  in pch_uart_put_poll_char()
1632 static void pch_console_putchar(struct uart_port *port, int ch)  in pch_console_putchar()  argument
1635 		container_of(port, struct eg20t_port, port);  in pch_console_putchar()
1661 	if (priv->port.sysrq) {  in pch_console_write()
1668 		port_locked = spin_trylock(&priv->port.lock);  in pch_console_write()
1671 		spin_lock(&priv->port.lock);  in pch_console_write()
1681 	uart_console_write(&priv->port, s, count, pch_console_putchar);  in pch_console_write()
1691 		spin_unlock(&priv->port.lock);  in pch_console_write()
1699 	struct uart_port *port;  in pch_console_setup()  local
1712 	port = &pch_uart_ports[co->index]->port;  in pch_console_setup()
1714 	if (!port || (!port->iobase && !port->membase))  in pch_console_setup()
1717 	port->uartclk = pch_uart_get_uartclk();  in pch_console_setup()
1722 	return uart_set_options(port, co, baud, parity, bits, flow);  in pch_console_setup()
1807 	priv->port.dev = &pdev->dev;  in pch_uart_init_port()
1808 	priv->port.iobase = iobase;  in pch_uart_init_port()
1809 	priv->port.membase = NULL;  in pch_uart_init_port()
1810 	priv->port.mapbase = mapbase;  in pch_uart_init_port()
1811 	priv->port.irq = pdev->irq;  in pch_uart_init_port()
1812 	priv->port.iotype = UPIO_PORT;  in pch_uart_init_port()
1813 	priv->port.ops = &pch_uart_ops;  in pch_uart_init_port()
1814 	priv->port.flags = UPF_BOOT_AUTOCONF;  in pch_uart_init_port()
1815 	priv->port.fifosize = fifosize;  in pch_uart_init_port()
1816 	priv->port.line = board->line_no;  in pch_uart_init_port()
1821 		 priv->port.line);  in pch_uart_init_port()
1823 	spin_lock_init(&priv->port.lock);  in pch_uart_init_port()
1832 	ret = uart_add_one_port(&pch_uart_driver, &priv->port);  in pch_uart_init_port()
1863 	uart_remove_one_port(&pch_uart_driver, &priv->port);  in pch_uart_exit_port()
1874 	pch_uart_ports[priv->port.line] = NULL;  in pch_uart_pci_remove()
1886 	uart_suspend_port(&pch_uart_driver, &priv->port);  in pch_uart_pci_suspend()
1908 	uart_resume_port(&pch_uart_driver, &priv->port);  in pch_uart_pci_resume()