Lines Matching +full:auto +full:- +full:baud
1 // SPDX-License-Identifier: GPL-2.0+
9 * Copyright 2014 Oleksij Rempel <linux@rempel-privat.de>
11 * Copyright 2008-2010 Freescale Semiconductor, Inc.
34 #include <linux/dma-mapping.h>
90 #define AUART_LINECTRL_WLEN(v) ((((v) - 5) & 0x3) << 5)
138 * RW. Receive Timeout Counter Value: number of 8-bit-time to wait before
140 * input is idle, then the watchdog counter will decrement each bit-time. Note
141 * 7-bit-time is added to the programmed value, so a value of zero will set
142 * the counter to 7-bit-time, a value of 0x1 gives 15-bit-time and so on. Also
146 * value is 0x3 (31 bit-time).
149 /* TIMEOUT = (100*7+1)*(1/BAUD) */
218 /* Auto-Boud Timeout */
273 /* RW. Enable Auto Direction Control. */
280 /* RW. Enable Auto Address Detect (AAD). */
284 /* RW. Enable RS-485/EIA-485 Normal Multidrop Mode (NMM) */
294 * is in periods of the baud clock.
299 /* WO. Auto-baud time-out interrupt clear bit. */
301 /* WO. End of auto-baud interrupt clear bit. */
305 /* Auto-baud mode select bit. 0 - Mode 0, 1 - Mode 1. */
308 * Auto-baud start (auto-baud is running). Auto-baud run bit. This bit is
309 * automatically cleared after auto-baud completion.
320 /* RW. Baud Rate Mode: 1 - Enable sync mode. 0 - async mode. */
322 /* RW. 1 - MSB bit send frist; 0 - LSB bit frist. */
324 /* RW. 1 - sample rate = 8 x Baudrate; 0 - sample rate = 16 x Baudrate. */
326 /* RW. 1 - Set word length to 9bit. 0 - use ASM9260_BM_LCTRL_WLEN */
338 /* RW. 1 - ISO7816 mode; 0 - USART mode */
376 /* The size of the array - must be last */
446 .compatible = "fsl,imx28-auart",
449 .compatible = "fsl,imx23-auart",
452 .compatible = "alphascale,asm9260-auart",
460 return s->devtype == IMX28_AUART; in is_imx28_auart()
465 return s->devtype == ASM9260_AUART; in is_asm9260_auart()
470 return s->flags & MXS_AUART_DMA_ENABLED; in auart_dma_enabled()
476 return uap->vendor->reg_offset[reg]; in mxs_reg_to_offset()
482 void __iomem *addr = uap->port.membase + mxs_reg_to_offset(uap, reg); in mxs_read()
490 void __iomem *addr = uap->port.membase + mxs_reg_to_offset(uap, reg); in mxs_write()
498 void __iomem *addr = uap->port.membase + mxs_reg_to_offset(uap, reg); in mxs_set()
506 void __iomem *addr = uap->port.membase + mxs_reg_to_offset(uap, reg); in mxs_clr()
520 struct circ_buf *xmit = &s->port.state->xmit; in dma_tx_callback()
522 dma_unmap_sg(s->dev, &s->tx_sgl, 1, DMA_TO_DEVICE); in dma_tx_callback()
525 clear_bit(MXS_AUART_DMA_TX_SYNC, &s->flags); in dma_tx_callback()
530 uart_write_wakeup(&s->port); in dma_tx_callback()
538 struct scatterlist *sgl = &s->tx_sgl; in mxs_auart_dma_tx()
539 struct dma_chan *channel = s->tx_dma_chan; in mxs_auart_dma_tx()
547 dev_err(s->dev, "step 1 error\n"); in mxs_auart_dma_tx()
548 return -EINVAL; in mxs_auart_dma_tx()
552 sg_init_one(sgl, s->tx_dma_buf, size); in mxs_auart_dma_tx()
553 dma_map_sg(s->dev, sgl, 1, DMA_TO_DEVICE); in mxs_auart_dma_tx()
557 dev_err(s->dev, "step 2 error\n"); in mxs_auart_dma_tx()
558 return -EINVAL; in mxs_auart_dma_tx()
562 desc->callback = dma_tx_callback; in mxs_auart_dma_tx()
563 desc->callback_param = s; in mxs_auart_dma_tx()
571 struct circ_buf *xmit = &s->port.state->xmit; in mxs_auart_tx_chars()
576 void *buffer = s->tx_dma_buf; in mxs_auart_tx_chars()
578 if (test_and_set_bit(MXS_AUART_DMA_TX_SYNC, &s->flags)) in mxs_auart_tx_chars()
581 while (!uart_circ_empty(xmit) && !uart_tx_stopped(&s->port)) { in mxs_auart_tx_chars()
582 size = min_t(u32, UART_XMIT_SIZE - i, in mxs_auart_tx_chars()
583 CIRC_CNT_TO_END(xmit->head, in mxs_auart_tx_chars()
584 xmit->tail, in mxs_auart_tx_chars()
586 memcpy(buffer + i, xmit->buf + xmit->tail, size); in mxs_auart_tx_chars()
587 xmit->tail = (xmit->tail + size) & (UART_XMIT_SIZE - 1); in mxs_auart_tx_chars()
594 if (uart_tx_stopped(&s->port)) in mxs_auart_tx_chars()
595 mxs_auart_stop_tx(&s->port); in mxs_auart_tx_chars()
600 clear_bit(MXS_AUART_DMA_TX_SYNC, &s->flags); in mxs_auart_tx_chars()
608 if (s->port.x_char) { in mxs_auart_tx_chars()
609 s->port.icount.tx++; in mxs_auart_tx_chars()
610 mxs_write(s->port.x_char, s, REG_DATA); in mxs_auart_tx_chars()
611 s->port.x_char = 0; in mxs_auart_tx_chars()
614 if (!uart_circ_empty(xmit) && !uart_tx_stopped(&s->port)) { in mxs_auart_tx_chars()
615 s->port.icount.tx++; in mxs_auart_tx_chars()
616 mxs_write(xmit->buf[xmit->tail], s, REG_DATA); in mxs_auart_tx_chars()
617 xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); in mxs_auart_tx_chars()
622 uart_write_wakeup(&s->port); in mxs_auart_tx_chars()
624 if (uart_circ_empty(&(s->port.state->xmit))) in mxs_auart_tx_chars()
629 if (uart_tx_stopped(&s->port)) in mxs_auart_tx_chars()
630 mxs_auart_stop_tx(&s->port); in mxs_auart_tx_chars()
643 s->port.icount.rx++; in mxs_auart_rx_char()
646 s->port.icount.brk++; in mxs_auart_rx_char()
647 if (uart_handle_break(&s->port)) in mxs_auart_rx_char()
650 s->port.icount.parity++; in mxs_auart_rx_char()
652 s->port.icount.frame++; in mxs_auart_rx_char()
658 stat &= s->port.read_status_mask; in mxs_auart_rx_char()
668 s->port.icount.overrun++; in mxs_auart_rx_char()
670 if (uart_handle_sysrq_char(&s->port, c)) in mxs_auart_rx_char()
673 uart_insert_char(&s->port, stat, AUART_STAT_OERR, c, flag); in mxs_auart_rx_char()
690 tty_flip_buffer_push(&s->port.state->port); in mxs_auart_rx_chars()
701 if (u->type != PORT_UNKNOWN && u->type != PORT_IMX) in mxs_auart_verify_port()
702 return -EINVAL; in mxs_auart_verify_port()
714 return dev_name(s->dev); in mxs_auart_type()
737 mctrl_gpio_set(s->gpios, mctrl); in mxs_auart_set_mctrl()
745 mctrl_diff = mctrl ^ s->mctrl_prev; in mxs_auart_modem_status()
746 s->mctrl_prev = mctrl; in mxs_auart_modem_status()
747 if (mctrl_diff & MCTRL_ANY_DELTA && s->ms_irq_enabled && in mxs_auart_modem_status()
748 s->port.state != NULL) { in mxs_auart_modem_status()
750 s->port.icount.rng++; in mxs_auart_modem_status()
752 s->port.icount.dsr++; in mxs_auart_modem_status()
754 uart_handle_dcd_change(&s->port, mctrl & TIOCM_CD); in mxs_auart_modem_status()
756 uart_handle_cts_change(&s->port, mctrl & TIOCM_CTS); in mxs_auart_modem_status()
758 wake_up_interruptible(&s->port.state->port.delta_msr_wait); in mxs_auart_modem_status()
772 return mctrl_gpio_get(s->gpios, &mctrl); in mxs_auart_get_mctrl()
785 if (s->ms_irq_enabled) in mxs_auart_enable_ms()
788 s->ms_irq_enabled = true; in mxs_auart_enable_ms()
790 if (s->gpio_irq[UART_GPIO_CTS] >= 0) in mxs_auart_enable_ms()
791 enable_irq(s->gpio_irq[UART_GPIO_CTS]); in mxs_auart_enable_ms()
794 if (s->gpio_irq[UART_GPIO_DSR] >= 0) in mxs_auart_enable_ms()
795 enable_irq(s->gpio_irq[UART_GPIO_DSR]); in mxs_auart_enable_ms()
797 if (s->gpio_irq[UART_GPIO_RI] >= 0) in mxs_auart_enable_ms()
798 enable_irq(s->gpio_irq[UART_GPIO_RI]); in mxs_auart_enable_ms()
800 if (s->gpio_irq[UART_GPIO_DCD] >= 0) in mxs_auart_enable_ms()
801 enable_irq(s->gpio_irq[UART_GPIO_DCD]); in mxs_auart_enable_ms()
814 if (!s->ms_irq_enabled) in mxs_auart_disable_ms()
817 s->ms_irq_enabled = false; in mxs_auart_disable_ms()
819 if (s->gpio_irq[UART_GPIO_CTS] >= 0) in mxs_auart_disable_ms()
820 disable_irq(s->gpio_irq[UART_GPIO_CTS]); in mxs_auart_disable_ms()
823 if (s->gpio_irq[UART_GPIO_DSR] >= 0) in mxs_auart_disable_ms()
824 disable_irq(s->gpio_irq[UART_GPIO_DSR]); in mxs_auart_disable_ms()
826 if (s->gpio_irq[UART_GPIO_RI] >= 0) in mxs_auart_disable_ms()
827 disable_irq(s->gpio_irq[UART_GPIO_RI]); in mxs_auart_disable_ms()
829 if (s->gpio_irq[UART_GPIO_DCD] >= 0) in mxs_auart_disable_ms()
830 disable_irq(s->gpio_irq[UART_GPIO_DCD]); in mxs_auart_disable_ms()
837 struct tty_port *port = &s->port.state->port; in dma_rx_callback()
841 dma_unmap_sg(s->dev, &s->rx_sgl, 1, DMA_FROM_DEVICE); in dma_rx_callback()
848 tty_insert_flip_string(port, s->rx_dma_buf, count); in dma_rx_callback()
860 struct scatterlist *sgl = &s->rx_sgl; in mxs_auart_dma_prep_rx()
861 struct dma_chan *channel = s->rx_dma_chan; in mxs_auart_dma_prep_rx()
871 dev_err(s->dev, "step 1 error\n"); in mxs_auart_dma_prep_rx()
872 return -EINVAL; in mxs_auart_dma_prep_rx()
876 sg_init_one(sgl, s->rx_dma_buf, UART_XMIT_SIZE); in mxs_auart_dma_prep_rx()
877 dma_map_sg(s->dev, sgl, 1, DMA_FROM_DEVICE); in mxs_auart_dma_prep_rx()
881 dev_err(s->dev, "step 2 error\n"); in mxs_auart_dma_prep_rx()
882 return -1; in mxs_auart_dma_prep_rx()
886 desc->callback = dma_rx_callback; in mxs_auart_dma_prep_rx()
887 desc->callback_param = s; in mxs_auart_dma_prep_rx()
895 if (s->tx_dma_chan) { in mxs_auart_dma_exit_channel()
896 dma_release_channel(s->tx_dma_chan); in mxs_auart_dma_exit_channel()
897 s->tx_dma_chan = NULL; in mxs_auart_dma_exit_channel()
899 if (s->rx_dma_chan) { in mxs_auart_dma_exit_channel()
900 dma_release_channel(s->rx_dma_chan); in mxs_auart_dma_exit_channel()
901 s->rx_dma_chan = NULL; in mxs_auart_dma_exit_channel()
904 kfree(s->tx_dma_buf); in mxs_auart_dma_exit_channel()
905 kfree(s->rx_dma_buf); in mxs_auart_dma_exit_channel()
906 s->tx_dma_buf = NULL; in mxs_auart_dma_exit_channel()
907 s->rx_dma_buf = NULL; in mxs_auart_dma_exit_channel()
917 s->flags &= ~MXS_AUART_DMA_ENABLED; in mxs_auart_dma_exit()
918 clear_bit(MXS_AUART_DMA_TX_SYNC, &s->flags); in mxs_auart_dma_exit()
919 clear_bit(MXS_AUART_DMA_RX_READY, &s->flags); in mxs_auart_dma_exit()
928 s->rx_dma_chan = dma_request_slave_channel(s->dev, "rx"); in mxs_auart_dma_init()
929 if (!s->rx_dma_chan) in mxs_auart_dma_init()
931 s->rx_dma_buf = kzalloc(UART_XMIT_SIZE, GFP_KERNEL | GFP_DMA); in mxs_auart_dma_init()
932 if (!s->rx_dma_buf) in mxs_auart_dma_init()
936 s->tx_dma_chan = dma_request_slave_channel(s->dev, "tx"); in mxs_auart_dma_init()
937 if (!s->tx_dma_chan) in mxs_auart_dma_init()
939 s->tx_dma_buf = kzalloc(UART_XMIT_SIZE, GFP_KERNEL | GFP_DMA); in mxs_auart_dma_init()
940 if (!s->tx_dma_buf) in mxs_auart_dma_init()
944 s->flags |= MXS_AUART_DMA_ENABLED; in mxs_auart_dma_init()
945 dev_dbg(s->dev, "enabled the DMA support."); in mxs_auart_dma_init()
948 s->port.fifosize = UART_XMIT_SIZE; in mxs_auart_dma_init()
954 return -EINVAL; in mxs_auart_dma_init()
958 #define RTS_AT_AUART() !mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_RTS)
959 #define CTS_AT_AUART() !mctrl_gpio_to_gpiod(s->gpios, UART_GPIO_CTS)
966 unsigned int cflag, baud, baud_min, baud_max; in mxs_auart_settermios() local
968 cflag = termios->c_cflag; in mxs_auart_settermios()
984 u->read_status_mask = AUART_STAT_OERR; in mxs_auart_settermios()
986 if (termios->c_iflag & INPCK) in mxs_auart_settermios()
987 u->read_status_mask |= AUART_STAT_PERR; in mxs_auart_settermios()
988 if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK)) in mxs_auart_settermios()
989 u->read_status_mask |= AUART_STAT_BERR; in mxs_auart_settermios()
994 u->ignore_status_mask = 0; in mxs_auart_settermios()
995 if (termios->c_iflag & IGNPAR) in mxs_auart_settermios()
996 u->ignore_status_mask |= AUART_STAT_PERR; in mxs_auart_settermios()
997 if (termios->c_iflag & IGNBRK) { in mxs_auart_settermios()
998 u->ignore_status_mask |= AUART_STAT_BERR; in mxs_auart_settermios()
1003 if (termios->c_iflag & IGNPAR) in mxs_auart_settermios()
1004 u->ignore_status_mask |= AUART_STAT_OERR; in mxs_auart_settermios()
1029 && test_bit(MXS_AUART_RTSCTS, &s->flags)) { in mxs_auart_settermios()
1042 /* set baud rate */ in mxs_auart_settermios()
1044 baud = uart_get_baud_rate(u, termios, old, in mxs_auart_settermios()
1045 u->uartclk * 4 / 0x3FFFFF, in mxs_auart_settermios()
1046 u->uartclk / 16); in mxs_auart_settermios()
1047 div = u->uartclk * 4 / baud; in mxs_auart_settermios()
1049 baud_min = DIV_ROUND_UP(u->uartclk * 32, in mxs_auart_settermios()
1051 baud_max = u->uartclk * 32 / AUART_LINECTRL_BAUD_DIV_MIN; in mxs_auart_settermios()
1052 baud = uart_get_baud_rate(u, termios, old, baud_min, baud_max); in mxs_auart_settermios()
1053 div = DIV_ROUND_CLOSEST(u->uartclk * 32, baud); in mxs_auart_settermios()
1062 uart_update_timeout(u, termios->c_cflag, baud); in mxs_auart_settermios()
1066 !test_and_set_bit(MXS_AUART_DMA_RX_READY, &s->flags)) { in mxs_auart_settermios()
1073 dev_err(s->dev, "We can not start up the DMA.\n"); in mxs_auart_settermios()
1077 /* CTS flow-control and modem-status interrupts */ in mxs_auart_settermios()
1078 if (UART_ENABLE_MS(u, termios->c_cflag)) in mxs_auart_settermios()
1087 if (termios->c_line == N_PPS) { in mxs_auart_set_ldisc()
1088 port->flags |= UPF_HARDPPS_CD; in mxs_auart_set_ldisc()
1091 port->flags &= ~UPF_HARDPPS_CD; in mxs_auart_set_ldisc()
1099 u32 mctrl_temp = s->mctrl_prev; in mxs_auart_irq_handle()
1111 if (irq == s->gpio_irq[UART_GPIO_CTS] || in mxs_auart_irq_handle()
1112 irq == s->gpio_irq[UART_GPIO_DCD] || in mxs_auart_irq_handle()
1113 irq == s->gpio_irq[UART_GPIO_DSR] || in mxs_auart_irq_handle()
1114 irq == s->gpio_irq[UART_GPIO_RI]) in mxs_auart_irq_handle()
1116 mctrl_gpio_get(s->gpios, &mctrl_temp)); in mxs_auart_irq_handle()
1119 if (CTS_AT_AUART() && s->ms_irq_enabled) in mxs_auart_irq_handle()
1120 uart_handle_cts_change(&s->port, in mxs_auart_irq_handle()
1177 dev_err(s->dev, "Failed to reset the unit."); in mxs_auart_reset_assert()
1185 ret = clk_prepare_enable(s->clk); in mxs_auart_startup()
1203 u->fifosize = MXS_AUART_FIFO_SIZE; in mxs_auart_startup()
1212 mctrl_gpio_get(s->gpios, &s->mctrl_prev); in mxs_auart_startup()
1214 s->ms_irq_enabled = false; in mxs_auart_startup()
1237 clk_disable_unprepare(s->clk); in mxs_auart_shutdown()
1314 if (!to--) in mxs_auart_console_putchar()
1330 if (co->index >= MXS_AUART_PORTS || co->index < 0) in auart_console_write()
1333 s = auart_port[co->index]; in auart_console_write()
1334 port = &s->port; in auart_console_write()
1336 clk_enable(s->clk); in auart_console_write()
1350 if (!to--) in auart_console_write()
1365 clk_disable(s->clk); in auart_console_write()
1369 auart_console_get_options(struct mxs_auart_port *s, int *baud, in auart_console_get_options() argument
1372 struct uart_port *port = &s->port; in auart_console_get_options()
1394 >> (AUART_LINECTRL_BAUD_DIVINT_SHIFT - 6); in auart_console_get_options()
1400 *baud = (port->uartclk << 2) / quot; in auart_console_get_options()
1407 int baud = 9600; in auart_console_setup() local
1418 if (co->index == -1 || co->index >= ARRAY_SIZE(auart_port)) in auart_console_setup()
1419 co->index = 0; in auart_console_setup()
1420 s = auart_port[co->index]; in auart_console_setup()
1422 return -ENODEV; in auart_console_setup()
1424 ret = clk_prepare_enable(s->clk); in auart_console_setup()
1429 uart_parse_options(options, &baud, &parity, &bits, &flow); in auart_console_setup()
1431 auart_console_get_options(s, &baud, &parity, &bits); in auart_console_setup()
1433 ret = uart_set_options(&s->port, co, baud, parity, bits, flow); in auart_console_setup()
1435 clk_disable_unprepare(s->clk); in auart_console_setup()
1446 .index = -1,
1466 s->vendor = &vendor_alphascale_asm9260; in mxs_init_regs()
1468 s->vendor = &vendor_freescale_stmp37xx; in mxs_init_regs()
1477 s->clk = devm_clk_get(&pdev->dev, NULL); in mxs_get_clks()
1478 return PTR_ERR_OR_ZERO(s->clk); in mxs_get_clks()
1481 s->clk = devm_clk_get(s->dev, "mod"); in mxs_get_clks()
1482 if (IS_ERR(s->clk)) { in mxs_get_clks()
1483 dev_err(s->dev, "Failed to get \"mod\" clk\n"); in mxs_get_clks()
1484 return PTR_ERR(s->clk); in mxs_get_clks()
1487 s->clk_ahb = devm_clk_get(s->dev, "ahb"); in mxs_get_clks()
1488 if (IS_ERR(s->clk_ahb)) { in mxs_get_clks()
1489 dev_err(s->dev, "Failed to get \"ahb\" clk\n"); in mxs_get_clks()
1490 return PTR_ERR(s->clk_ahb); in mxs_get_clks()
1493 err = clk_prepare_enable(s->clk_ahb); in mxs_get_clks()
1495 dev_err(s->dev, "Failed to enable ahb_clk!\n"); in mxs_get_clks()
1499 err = clk_set_rate(s->clk, clk_get_rate(s->clk_ahb)); in mxs_get_clks()
1501 dev_err(s->dev, "Failed to set rate!\n"); in mxs_get_clks()
1505 err = clk_prepare_enable(s->clk); in mxs_get_clks()
1507 dev_err(s->dev, "Failed to enable clk!\n"); in mxs_get_clks()
1514 clk_disable_unprepare(s->clk_ahb); in mxs_get_clks()
1523 s->gpios = mctrl_gpio_init_noauto(dev, 0); in mxs_auart_init_gpios()
1524 if (IS_ERR(s->gpios)) in mxs_auart_init_gpios()
1525 return PTR_ERR(s->gpios); in mxs_auart_init_gpios()
1529 if (test_bit(MXS_AUART_RTSCTS, &s->flags)) in mxs_auart_init_gpios()
1532 clear_bit(MXS_AUART_RTSCTS, &s->flags); in mxs_auart_init_gpios()
1536 gpiod = mctrl_gpio_to_gpiod(s->gpios, i); in mxs_auart_init_gpios()
1538 s->gpio_irq[i] = gpiod_to_irq(gpiod); in mxs_auart_init_gpios()
1540 s->gpio_irq[i] = -EINVAL; in mxs_auart_init_gpios()
1551 if (s->gpio_irq[i] >= 0) in mxs_auart_free_gpio_irq()
1552 free_irq(s->gpio_irq[i], s); in mxs_auart_free_gpio_irq()
1557 int *irq = s->gpio_irq; in mxs_auart_request_gpio_irq()
1567 IRQ_TYPE_EDGE_BOTH, dev_name(s->dev), s); in mxs_auart_request_gpio_irq()
1569 dev_err(s->dev, "%s - Can't get %d irq\n", in mxs_auart_request_gpio_irq()
1577 while (err && (i-- > 0)) in mxs_auart_request_gpio_irq()
1586 struct device_node *np = pdev->dev.of_node; in mxs_auart_probe()
1592 s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL); in mxs_auart_probe()
1594 return -ENOMEM; in mxs_auart_probe()
1596 s->port.dev = &pdev->dev; in mxs_auart_probe()
1597 s->dev = &pdev->dev; in mxs_auart_probe()
1601 dev_err(&pdev->dev, "failed to get alias id: %d\n", ret); in mxs_auart_probe()
1604 s->port.line = ret; in mxs_auart_probe()
1606 if (of_get_property(np, "uart-has-rtscts", NULL) || in mxs_auart_probe()
1607 of_get_property(np, "fsl,uart-has-rtscts", NULL) /* deprecated */) in mxs_auart_probe()
1608 set_bit(MXS_AUART_RTSCTS, &s->flags); in mxs_auart_probe()
1610 if (s->port.line >= ARRAY_SIZE(auart_port)) { in mxs_auart_probe()
1611 dev_err(&pdev->dev, "serial%d out of range\n", s->port.line); in mxs_auart_probe()
1612 return -EINVAL; in mxs_auart_probe()
1615 s->devtype = (enum mxs_auart_type)of_device_get_match_data(&pdev->dev); in mxs_auart_probe()
1623 ret = -ENXIO; in mxs_auart_probe()
1627 s->port.mapbase = r->start; in mxs_auart_probe()
1628 s->port.membase = ioremap(r->start, resource_size(r)); in mxs_auart_probe()
1629 if (!s->port.membase) { in mxs_auart_probe()
1630 ret = -ENOMEM; in mxs_auart_probe()
1633 s->port.ops = &mxs_auart_ops; in mxs_auart_probe()
1634 s->port.iotype = UPIO_MEM; in mxs_auart_probe()
1635 s->port.fifosize = MXS_AUART_FIFO_SIZE; in mxs_auart_probe()
1636 s->port.uartclk = clk_get_rate(s->clk); in mxs_auart_probe()
1637 s->port.type = PORT_IMX; in mxs_auart_probe()
1638 s->port.has_sysrq = IS_ENABLED(CONFIG_SERIAL_MXS_AUART_CONSOLE); in mxs_auart_probe()
1642 s->mctrl_prev = 0; in mxs_auart_probe()
1650 s->port.irq = irq; in mxs_auart_probe()
1651 ret = devm_request_irq(&pdev->dev, irq, mxs_auart_irq_handle, 0, in mxs_auart_probe()
1652 dev_name(&pdev->dev), s); in mxs_auart_probe()
1658 ret = mxs_auart_init_gpios(s, &pdev->dev); in mxs_auart_probe()
1660 dev_err(&pdev->dev, "Failed to initialize GPIOs.\n"); in mxs_auart_probe()
1671 auart_port[s->port.line] = s; in mxs_auart_probe()
1675 ret = uart_add_one_port(&auart_driver, &s->port); in mxs_auart_probe()
1681 dev_info(&pdev->dev, "Found APPUART ASM9260\n"); in mxs_auart_probe()
1684 dev_info(&pdev->dev, "Found APPUART %d.%d.%d\n", in mxs_auart_probe()
1693 auart_port[pdev->id] = NULL; in mxs_auart_probe()
1696 iounmap(s->port.membase); in mxs_auart_probe()
1700 clk_disable_unprepare(s->clk); in mxs_auart_probe()
1701 clk_disable_unprepare(s->clk_ahb); in mxs_auart_probe()
1710 uart_remove_one_port(&auart_driver, &s->port); in mxs_auart_remove()
1711 auart_port[pdev->id] = NULL; in mxs_auart_remove()
1713 iounmap(s->port.membase); in mxs_auart_remove()
1715 clk_disable_unprepare(s->clk); in mxs_auart_remove()
1716 clk_disable_unprepare(s->clk_ahb); in mxs_auart_remove()
1726 .name = "mxs-auart",
1760 MODULE_ALIAS("platform:mxs-auart");