Lines Matching +full:ports +full:- +full:word +full:- +full:length
1 // SPDX-License-Identifier: GPL-2.0+
3 * SC16IS7xx tty serial driver - common code
53 * - only on 75x/76x
56 * - only on 75x/76x
59 * - only on 75x/76x
62 * - only on 75x/76x
76 #define SC16IS7XX_XON1_REG (0x04) /* Xon1 word */
77 #define SC16IS7XX_XON2_REG (0x05) /* Xon2 word */
78 #define SC16IS7XX_XOFF1_REG (0x06) /* Xoff1 word */
79 #define SC16IS7XX_XOFF2_REG (0x07) /* Xoff2 word */
90 /* IER register bits - write only if (EFR[4] == 1) */
103 /* FCR register bits - write only if (EFR[4] == 1) */
113 #define SC16IS7XX_IIR_RTOI_SRC 0x0c /* RX time-out interrupt */
115 * - only on 75x/76x
118 * - only on 75x/76x
126 #define SC16IS7XX_LCR_LENGTH0_BIT BIT(0) /* Word length bit 0 */
127 #define SC16IS7XX_LCR_LENGTH1_BIT BIT(1) /* Word length bit 1
129 * Word length bits table:
130 * 00 -> 5 bit words
131 * 01 -> 6 bit words
132 * 10 -> 7 bit words
133 * 11 -> 8 bit words
135 #define SC16IS7XX_LCR_STOPLEN_BIT BIT(2) /* STOP length bit
137 * STOP length bit table:
138 * 0 -> 1 stop bit
139 * 1 -> 1-1.5 stop bits if
140 * word length is 5,
145 #define SC16IS7XX_LCR_FORCEPARITY_BIT BIT(5) /* 9-bit multidrop parity */
159 * - only on 75x/76x
165 * - write enabled
169 * - write enabled
173 * - write enabled
197 * - only on 75x/76x
201 * - only on 75x/76x
205 * - only on 75x/76x
209 * - only on 75x/76x
212 * - only on 75x/76x
215 * - only on 75x/76x
223 * no built-in hardware check to make sure this condition is met. Also, the TCR
238 * trigger level setting defined in FCR. If TLR has non-zero trigger level value
255 #define SC16IS7XX_EFCR_9BIT_MODE_BIT BIT(0) /* Enable 9-bit or Multidrop
263 * - Only 75x/76x
265 * - Only 76x
280 * 00 -> no transmitter flow
282 * 01 -> transmitter generates
284 * 10 -> transmitter generates
286 * 11 -> transmitter generates
294 * 00 -> no received flow
296 * 01 -> receiver compares
298 * 10 -> receiver compares
300 * 11 -> receiver compares
373 regmap_read(one->regmap, reg, &val); in sc16is7xx_port_read()
382 regmap_write(one->regmap, reg, val); in sc16is7xx_port_write()
389 regmap_noinc_read(one->regmap, SC16IS7XX_RHR_REG, rxbuf, rxlen); in sc16is7xx_fifo_read()
397 * Don't send zero-length data, at least on SPI it confuses the chip in sc16is7xx_fifo_write()
403 regmap_noinc_write(one->regmap, SC16IS7XX_THR_REG, txbuf, to_send); in sc16is7xx_fifo_write()
411 regmap_update_bits(one->regmap, reg, mask, val); in sc16is7xx_port_update()
439 mutex_lock(&one->efr_lock); in sc16is7xx_efr_lock()
442 one->old_lcr = sc16is7xx_port_read(port, SC16IS7XX_LCR_REG); in sc16is7xx_efr_lock()
448 regcache_cache_bypass(one->regmap, true); in sc16is7xx_efr_lock()
455 /* Re-enable cache updates when writing to normal registers */ in sc16is7xx_efr_unlock()
456 regcache_cache_bypass(one->regmap, false); in sc16is7xx_efr_unlock()
459 sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, one->old_lcr); in sc16is7xx_efr_unlock()
461 mutex_unlock(&one->efr_lock); in sc16is7xx_efr_unlock()
466 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_ier_clear()
469 lockdep_assert_held_once(&port->lock); in sc16is7xx_ier_clear()
471 one->config.flags |= SC16IS7XX_RECONF_IER; in sc16is7xx_ier_clear()
472 one->config.ier_mask |= bit; in sc16is7xx_ier_clear()
473 one->config.ier_val &= ~bit; in sc16is7xx_ier_clear()
474 kthread_queue_work(&s->kworker, &one->reg_work); in sc16is7xx_ier_clear()
479 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_ier_set()
482 lockdep_assert_held_once(&port->lock); in sc16is7xx_ier_set()
484 one->config.flags |= SC16IS7XX_RECONF_IER; in sc16is7xx_ier_set()
485 one->config.ier_mask |= bit; in sc16is7xx_ier_set()
486 one->config.ier_val |= bit; in sc16is7xx_ier_set()
487 kthread_queue_work(&s->kworker, &one->reg_work); in sc16is7xx_ier_set()
574 * -----------------------
576 * divisor = ---------------------------
577 * baud-rate x sampling-rate
584 unsigned long clk = port->uartclk, div = clk / 16 / baud; in sc16is7xx_set_baud()
603 mutex_lock(&one->efr_lock); in sc16is7xx_set_baud()
611 regcache_cache_bypass(one->regmap, true); in sc16is7xx_set_baud()
614 regcache_cache_bypass(one->regmap, false); in sc16is7xx_set_baud()
619 mutex_unlock(&one->efr_lock); in sc16is7xx_set_baud()
632 if (unlikely(rxlen >= sizeof(one->buf))) { in sc16is7xx_handle_rx()
633 dev_warn_ratelimited(port->dev, in sc16is7xx_handle_rx()
635 port->line, rxlen); in sc16is7xx_handle_rx()
636 port->icount.buf_overrun++; in sc16is7xx_handle_rx()
638 rxlen = sizeof(one->buf); in sc16is7xx_handle_rx()
651 one->buf[0] = sc16is7xx_port_read(port, SC16IS7XX_RHR_REG); in sc16is7xx_handle_rx()
654 sc16is7xx_fifo_read(port, one->buf, rxlen); in sc16is7xx_handle_rx()
660 port->icount.rx++; in sc16is7xx_handle_rx()
665 port->icount.brk++; in sc16is7xx_handle_rx()
669 port->icount.parity++; in sc16is7xx_handle_rx()
671 port->icount.frame++; in sc16is7xx_handle_rx()
673 port->icount.overrun++; in sc16is7xx_handle_rx()
675 lsr &= port->read_status_mask; in sc16is7xx_handle_rx()
687 ch = one->buf[i]; in sc16is7xx_handle_rx()
691 if (lsr & port->ignore_status_mask) in sc16is7xx_handle_rx()
697 rxlen -= bytes_read; in sc16is7xx_handle_rx()
700 tty_flip_buffer_push(&port->state->port); in sc16is7xx_handle_rx()
705 struct tty_port *tport = &port->state->port; in sc16is7xx_handle_tx()
710 if (unlikely(port->x_char)) { in sc16is7xx_handle_tx()
711 sc16is7xx_port_write(port, SC16IS7XX_THR_REG, port->x_char); in sc16is7xx_handle_tx()
712 port->icount.tx++; in sc16is7xx_handle_tx()
713 port->x_char = 0; in sc16is7xx_handle_tx()
717 if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) { in sc16is7xx_handle_tx()
727 dev_err_ratelimited(port->dev, in sc16is7xx_handle_tx()
733 txlen = kfifo_out_linear_ptr(&tport->xmit_fifo, &tail, txlen); in sc16is7xx_handle_tx()
738 if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS) in sc16is7xx_handle_tx()
741 if (kfifo_is_empty(&tport->xmit_fifo)) in sc16is7xx_handle_tx()
762 struct uart_port *port = &one->port; in sc16is7xx_update_mlines()
766 lockdep_assert_held_once(&one->efr_lock); in sc16is7xx_update_mlines()
769 changed = status ^ one->old_mctrl; in sc16is7xx_update_mlines()
774 one->old_mctrl = status; in sc16is7xx_update_mlines()
778 port->icount.rng++; in sc16is7xx_update_mlines()
780 port->icount.dsr++; in sc16is7xx_update_mlines()
786 wake_up_interruptible(&port->state->port.delta_msr_wait); in sc16is7xx_update_mlines()
794 struct uart_port *port = &s->p[portno].port; in sc16is7xx_port_irq()
797 mutex_lock(&one->efr_lock); in sc16is7xx_port_irq()
816 * time-out interrupt but no data in the FIFO. This is in sc16is7xx_port_irq()
837 dev_err_ratelimited(port->dev, in sc16is7xx_port_irq()
839 port->line, iir); in sc16is7xx_port_irq()
844 mutex_unlock(&one->efr_lock); in sc16is7xx_port_irq()
860 for (i = 0; i < s->devtype->nr_uart; ++i) in sc16is7xx_irq()
875 kthread_queue_delayed_work(&s->kworker, &s->poll_work, in sc16is7xx_poll_proc()
881 struct uart_port *port = &(to_sc16is7xx_one(ws, tx_work)->port); in sc16is7xx_tx_proc()
884 if ((port->rs485.flags & SER_RS485_ENABLED) && in sc16is7xx_tx_proc()
885 (port->rs485.delay_rts_before_send > 0)) in sc16is7xx_tx_proc()
886 msleep(port->rs485.delay_rts_before_send); in sc16is7xx_tx_proc()
888 mutex_lock(&one->efr_lock); in sc16is7xx_tx_proc()
890 mutex_unlock(&one->efr_lock); in sc16is7xx_tx_proc()
898 struct serial_rs485 *rs485 = &port->rs485; in sc16is7xx_reconf_rs485()
902 if (rs485->flags & SER_RS485_ENABLED) { in sc16is7xx_reconf_rs485()
905 if (rs485->flags & SER_RS485_RTS_AFTER_SEND) in sc16is7xx_reconf_rs485()
919 uart_port_lock_irqsave(&one->port, &irqflags); in sc16is7xx_reg_proc()
920 config = one->config; in sc16is7xx_reg_proc()
921 memset(&one->config, 0, sizeof(one->config)); in sc16is7xx_reg_proc()
922 uart_port_unlock_irqrestore(&one->port, irqflags); in sc16is7xx_reg_proc()
928 if (one->port.mctrl & TIOCM_RTS) in sc16is7xx_reg_proc()
931 if (one->port.mctrl & TIOCM_DTR) in sc16is7xx_reg_proc()
934 if (one->port.mctrl & TIOCM_LOOP) in sc16is7xx_reg_proc()
936 sc16is7xx_port_update(&one->port, SC16IS7XX_MCR_REG, in sc16is7xx_reg_proc()
944 sc16is7xx_port_update(&one->port, SC16IS7XX_IER_REG, in sc16is7xx_reg_proc()
948 sc16is7xx_reconf_rs485(&one->port); in sc16is7xx_reg_proc()
954 struct sc16is7xx_port *s = dev_get_drvdata(one->port.dev); in sc16is7xx_ms_proc()
956 if (one->port.state) { in sc16is7xx_ms_proc()
957 mutex_lock(&one->efr_lock); in sc16is7xx_ms_proc()
959 mutex_unlock(&one->efr_lock); in sc16is7xx_ms_proc()
961 kthread_queue_delayed_work(&s->kworker, &one->ms_work, HZ); in sc16is7xx_ms_proc()
968 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_enable_ms()
970 lockdep_assert_held_once(&port->lock); in sc16is7xx_enable_ms()
972 kthread_queue_delayed_work(&s->kworker, &one->ms_work, 0); in sc16is7xx_enable_ms()
977 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_start_tx()
980 kthread_queue_work(&s->kworker, &one->tx_work); in sc16is7xx_start_tx()
990 * AutoRTS feature will de-activate RTS output. in sc16is7xx_throttle()
1020 return one->old_mctrl; in sc16is7xx_get_mctrl()
1025 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_set_mctrl()
1028 one->config.flags |= SC16IS7XX_RECONF_MD; in sc16is7xx_set_mctrl()
1029 kthread_queue_work(&s->kworker, &one->reg_work); in sc16is7xx_set_mctrl()
1048 kthread_cancel_delayed_work_sync(&one->ms_work); in sc16is7xx_set_termios()
1051 termios->c_cflag &= ~CMSPAR; in sc16is7xx_set_termios()
1053 /* Word size */ in sc16is7xx_set_termios()
1054 switch (termios->c_cflag & CSIZE) { in sc16is7xx_set_termios()
1069 termios->c_cflag &= ~CSIZE; in sc16is7xx_set_termios()
1070 termios->c_cflag |= CS8; in sc16is7xx_set_termios()
1075 if (termios->c_cflag & PARENB) { in sc16is7xx_set_termios()
1077 if (!(termios->c_cflag & PARODD)) in sc16is7xx_set_termios()
1082 if (termios->c_cflag & CSTOPB) in sc16is7xx_set_termios()
1086 port->read_status_mask = SC16IS7XX_LSR_OE_BIT; in sc16is7xx_set_termios()
1087 if (termios->c_iflag & INPCK) in sc16is7xx_set_termios()
1088 port->read_status_mask |= SC16IS7XX_LSR_PE_BIT | in sc16is7xx_set_termios()
1090 if (termios->c_iflag & (BRKINT | PARMRK)) in sc16is7xx_set_termios()
1091 port->read_status_mask |= SC16IS7XX_LSR_BI_BIT; in sc16is7xx_set_termios()
1094 port->ignore_status_mask = 0; in sc16is7xx_set_termios()
1095 if (termios->c_iflag & IGNBRK) in sc16is7xx_set_termios()
1096 port->ignore_status_mask |= SC16IS7XX_LSR_BI_BIT; in sc16is7xx_set_termios()
1097 if (!(termios->c_cflag & CREAD)) in sc16is7xx_set_termios()
1098 port->ignore_status_mask |= SC16IS7XX_LSR_BRK_ERROR_MASK; in sc16is7xx_set_termios()
1101 port->status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS); in sc16is7xx_set_termios()
1102 if (termios->c_cflag & CRTSCTS) { in sc16is7xx_set_termios()
1105 port->status |= UPSTAT_AUTOCTS | UPSTAT_AUTORTS; in sc16is7xx_set_termios()
1107 if (termios->c_iflag & IXON) in sc16is7xx_set_termios()
1109 if (termios->c_iflag & IXOFF) in sc16is7xx_set_termios()
1117 sc16is7xx_port_write(port, SC16IS7XX_XON1_REG, termios->c_cc[VSTART]); in sc16is7xx_set_termios()
1118 sc16is7xx_port_write(port, SC16IS7XX_XOFF1_REG, termios->c_cc[VSTOP]); in sc16is7xx_set_termios()
1125 port->uartclk / 16 / 4 / 0xffff, in sc16is7xx_set_termios()
1126 port->uartclk / 16); in sc16is7xx_set_termios()
1134 uart_update_timeout(port, termios->c_cflag, baud); in sc16is7xx_set_termios()
1136 if (UART_ENABLE_MS(port, termios->c_cflag)) in sc16is7xx_set_termios()
1145 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_config_rs485()
1148 if (rs485->flags & SER_RS485_ENABLED) { in sc16is7xx_config_rs485()
1154 if (rs485->delay_rts_after_send) in sc16is7xx_config_rs485()
1155 return -EINVAL; in sc16is7xx_config_rs485()
1158 one->config.flags |= SC16IS7XX_RECONF_RS485; in sc16is7xx_config_rs485()
1159 kthread_queue_work(&s->kworker, &one->reg_work); in sc16is7xx_config_rs485()
1167 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_startup()
1184 regcache_cache_bypass(one->regmap, true); in sc16is7xx_startup()
1202 regcache_cache_bypass(one->regmap, false); in sc16is7xx_startup()
1211 one->irda_mode ? in sc16is7xx_startup()
1230 if (s->polling) in sc16is7xx_startup()
1231 kthread_queue_delayed_work(&s->kworker, &s->poll_work, in sc16is7xx_startup()
1239 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_shutdown()
1242 kthread_cancel_delayed_work_sync(&one->ms_work); in sc16is7xx_shutdown()
1255 if (s->polling) in sc16is7xx_shutdown()
1256 kthread_cancel_delayed_work_sync(&s->poll_work); in sc16is7xx_shutdown()
1258 kthread_flush_worker(&s->kworker); in sc16is7xx_shutdown()
1263 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_type()
1265 return (port->type == PORT_SC16IS7XX) ? s->devtype->name : NULL; in sc16is7xx_type()
1277 port->type = PORT_SC16IS7XX; in sc16is7xx_config_port()
1283 if ((s->type != PORT_UNKNOWN) && (s->type != PORT_SC16IS7XX)) in sc16is7xx_verify_port()
1284 return -EINVAL; in sc16is7xx_verify_port()
1285 if (s->irq != port->irq) in sc16is7xx_verify_port()
1286 return -EINVAL; in sc16is7xx_verify_port()
1329 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_get()
1339 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_set()
1349 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_direction_input()
1360 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_direction_output()
1389 *valid_mask = s->gpio_valid_mask; in sc16is7xx_gpio_init_valid_mask()
1396 struct device *dev = s->p[0].port.dev; in sc16is7xx_setup_gpio_chip()
1398 if (!s->devtype->nr_gpio) in sc16is7xx_setup_gpio_chip()
1401 switch (s->mctrl_mask) { in sc16is7xx_setup_gpio_chip()
1403 s->gpio_valid_mask = GENMASK(7, 0); in sc16is7xx_setup_gpio_chip()
1406 s->gpio_valid_mask = GENMASK(3, 0); in sc16is7xx_setup_gpio_chip()
1409 s->gpio_valid_mask = GENMASK(7, 4); in sc16is7xx_setup_gpio_chip()
1415 if (s->gpio_valid_mask == 0) in sc16is7xx_setup_gpio_chip()
1418 s->gpio.owner = THIS_MODULE; in sc16is7xx_setup_gpio_chip()
1419 s->gpio.parent = dev; in sc16is7xx_setup_gpio_chip()
1420 s->gpio.label = dev_name(dev); in sc16is7xx_setup_gpio_chip()
1421 s->gpio.init_valid_mask = sc16is7xx_gpio_init_valid_mask; in sc16is7xx_setup_gpio_chip()
1422 s->gpio.direction_input = sc16is7xx_gpio_direction_input; in sc16is7xx_setup_gpio_chip()
1423 s->gpio.get = sc16is7xx_gpio_get; in sc16is7xx_setup_gpio_chip()
1424 s->gpio.direction_output = sc16is7xx_gpio_direction_output; in sc16is7xx_setup_gpio_chip()
1425 s->gpio.set = sc16is7xx_gpio_set; in sc16is7xx_setup_gpio_chip()
1426 s->gpio.base = -1; in sc16is7xx_setup_gpio_chip()
1427 s->gpio.ngpio = s->devtype->nr_gpio; in sc16is7xx_setup_gpio_chip()
1428 s->gpio.can_sleep = 1; in sc16is7xx_setup_gpio_chip()
1430 return gpiochip_add_data(&s->gpio, s); in sc16is7xx_setup_gpio_chip()
1440 struct device *dev = s->p[0].port.dev; in sc16is7xx_setup_irda_ports()
1442 count = device_property_count_u32(dev, "irda-mode-ports"); in sc16is7xx_setup_irda_ports()
1446 ret = device_property_read_u32_array(dev, "irda-mode-ports", in sc16is7xx_setup_irda_ports()
1452 if (irda_port[i] < s->devtype->nr_uart) in sc16is7xx_setup_irda_ports()
1453 s->p[irda_port[i]].irda_mode = true; in sc16is7xx_setup_irda_ports()
1458 * Configure ports designated to operate as modem control lines.
1467 struct device *dev = s->p[0].port.dev; in sc16is7xx_setup_mctrl_ports()
1469 count = device_property_count_u32(dev, "nxp,modem-control-line-ports"); in sc16is7xx_setup_mctrl_ports()
1473 ret = device_property_read_u32_array(dev, "nxp,modem-control-line-ports", in sc16is7xx_setup_mctrl_ports()
1478 s->mctrl_mask = 0; in sc16is7xx_setup_mctrl_ports()
1483 s->mctrl_mask |= SC16IS7XX_IOCONTROL_MODEM_A_BIT; in sc16is7xx_setup_mctrl_ports()
1485 s->mctrl_mask |= SC16IS7XX_IOCONTROL_MODEM_B_BIT; in sc16is7xx_setup_mctrl_ports()
1488 if (s->mctrl_mask) in sc16is7xx_setup_mctrl_ports()
1493 SC16IS7XX_IOCONTROL_MODEM_B_BIT, s->mctrl_mask); in sc16is7xx_setup_mctrl_ports()
1501 .delay_rts_after_send = 1, /* Not supported but keep returning -EINVAL */
1537 for (i = 0; i < devtype->nr_uart; i++) in sc16is7xx_probe()
1547 * common to all channels/ports, as it is guaranteed to be present on in sc16is7xx_probe()
1552 return -EPROBE_DEFER; in sc16is7xx_probe()
1555 s = devm_kzalloc(dev, struct_size(s, p, devtype->nr_uart), GFP_KERNEL); in sc16is7xx_probe()
1558 return -ENOMEM; in sc16is7xx_probe()
1562 device_property_read_u32(dev, "clock-frequency", &uartclk); in sc16is7xx_probe()
1564 s->polling = (irq <= 0); in sc16is7xx_probe()
1565 if (s->polling) in sc16is7xx_probe()
1569 s->clk = devm_clk_get_optional(dev, NULL); in sc16is7xx_probe()
1570 if (IS_ERR(s->clk)) in sc16is7xx_probe()
1571 return PTR_ERR(s->clk); in sc16is7xx_probe()
1573 ret = clk_prepare_enable(s->clk); in sc16is7xx_probe()
1577 freq = clk_get_rate(s->clk); in sc16is7xx_probe()
1586 return -EINVAL; in sc16is7xx_probe()
1589 s->devtype = devtype; in sc16is7xx_probe()
1592 kthread_init_worker(&s->kworker); in sc16is7xx_probe()
1593 s->kworker_task = kthread_run(kthread_worker_fn, &s->kworker, in sc16is7xx_probe()
1595 if (IS_ERR(s->kworker_task)) { in sc16is7xx_probe()
1596 ret = PTR_ERR(s->kworker_task); in sc16is7xx_probe()
1599 sched_set_fifo(s->kworker_task); in sc16is7xx_probe()
1606 for (i = 0; i < devtype->nr_uart; ++i) { in sc16is7xx_probe()
1607 s->p[i].port.line = SC16IS7XX_MAX_DEVS; in sc16is7xx_probe()
1611 for (i = 0; i < devtype->nr_uart; ++i) { in sc16is7xx_probe()
1613 SC16IS7XX_MAX_DEVS - 1, GFP_KERNEL); in sc16is7xx_probe()
1617 s->p[i].port.line = ret; in sc16is7xx_probe()
1620 s->p[i].port.dev = dev; in sc16is7xx_probe()
1621 s->p[i].port.irq = irq; in sc16is7xx_probe()
1622 s->p[i].port.type = PORT_SC16IS7XX; in sc16is7xx_probe()
1623 s->p[i].port.fifosize = SC16IS7XX_FIFO_SIZE; in sc16is7xx_probe()
1624 s->p[i].port.flags = UPF_FIXED_TYPE | UPF_LOW_LATENCY; in sc16is7xx_probe()
1625 s->p[i].port.iobase = i; in sc16is7xx_probe()
1631 s->p[i].port.membase = (void __iomem *)~0; in sc16is7xx_probe()
1632 s->p[i].port.iotype = UPIO_PORT; in sc16is7xx_probe()
1633 s->p[i].port.uartclk = freq; in sc16is7xx_probe()
1634 s->p[i].port.rs485_config = sc16is7xx_config_rs485; in sc16is7xx_probe()
1635 s->p[i].port.rs485_supported = sc16is7xx_rs485_supported; in sc16is7xx_probe()
1636 s->p[i].port.ops = &sc16is7xx_ops; in sc16is7xx_probe()
1637 s->p[i].old_mctrl = 0; in sc16is7xx_probe()
1638 s->p[i].regmap = regmaps[i]; in sc16is7xx_probe()
1640 mutex_init(&s->p[i].efr_lock); in sc16is7xx_probe()
1642 ret = uart_get_rs485_mode(&s->p[i].port); in sc16is7xx_probe()
1647 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_IER_REG, 0); in sc16is7xx_probe()
1649 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_EFCR_REG, in sc16is7xx_probe()
1654 kthread_init_work(&s->p[i].tx_work, sc16is7xx_tx_proc); in sc16is7xx_probe()
1655 kthread_init_work(&s->p[i].reg_work, sc16is7xx_reg_proc); in sc16is7xx_probe()
1656 kthread_init_delayed_work(&s->p[i].ms_work, sc16is7xx_ms_proc); in sc16is7xx_probe()
1659 ret = uart_add_one_port(&sc16is7xx_uart, &s->p[i].port); in sc16is7xx_probe()
1666 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_LCR_REG, in sc16is7xx_probe()
1672 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_EFR_REG, in sc16is7xx_probe()
1678 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_LCR_REG, 0x00); in sc16is7xx_probe()
1681 sc16is7xx_power(&s->p[i].port, 0); in sc16is7xx_probe()
1696 if (s->polling) { in sc16is7xx_probe()
1698 kthread_init_delayed_work(&s->poll_work, sc16is7xx_poll_proc); in sc16is7xx_probe()
1706 * back to a non-shared falling-edge trigger. in sc16is7xx_probe()
1722 if (s->gpio_valid_mask) in sc16is7xx_probe()
1723 gpiochip_remove(&s->gpio); in sc16is7xx_probe()
1727 for (i = 0; i < devtype->nr_uart; i++) { in sc16is7xx_probe()
1728 if (s->p[i].port.line < SC16IS7XX_MAX_DEVS) in sc16is7xx_probe()
1729 ida_free(&sc16is7xx_lines, s->p[i].port.line); in sc16is7xx_probe()
1731 uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port); in sc16is7xx_probe()
1735 kthread_stop(s->kworker_task); in sc16is7xx_probe()
1738 clk_disable_unprepare(s->clk); in sc16is7xx_probe()
1750 if (s->gpio_valid_mask) in sc16is7xx_remove()
1751 gpiochip_remove(&s->gpio); in sc16is7xx_remove()
1754 for (i = 0; i < s->devtype->nr_uart; i++) { in sc16is7xx_remove()
1755 kthread_cancel_delayed_work_sync(&s->p[i].ms_work); in sc16is7xx_remove()
1756 ida_free(&sc16is7xx_lines, s->p[i].port.line); in sc16is7xx_remove()
1757 uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port); in sc16is7xx_remove()
1758 sc16is7xx_power(&s->p[i].port, 0); in sc16is7xx_remove()
1761 if (s->polling) in sc16is7xx_remove()
1762 kthread_cancel_delayed_work_sync(&s->poll_work); in sc16is7xx_remove()
1764 kthread_flush_worker(&s->kworker); in sc16is7xx_remove()
1765 kthread_stop(s->kworker_task); in sc16is7xx_remove()
1767 clk_disable_unprepare(s->clk); in sc16is7xx_remove()