Lines Matching +full:dll +full:- +full:config
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
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
130 * 00 -> 5 bit words
131 * 01 -> 6 bit words
132 * 10 -> 7 bit words
133 * 11 -> 8 bit words
138 * 0 -> 1 stop bit
139 * 1 -> 1-1.5 stop bits if
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
335 struct sc16is7xx_one_config config; member
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()
596 mutex_lock(&one->efr_lock); in sc16is7xx_set_baud()
598 /* Backup LCR and access special register set (DLL/DLH) */ in sc16is7xx_set_baud()
604 regcache_cache_bypass(one->regmap, true); in sc16is7xx_set_baud()
607 regcache_cache_bypass(one->regmap, false); in sc16is7xx_set_baud()
612 mutex_unlock(&one->efr_lock); in sc16is7xx_set_baud()
625 if (unlikely(rxlen >= sizeof(one->buf))) { in sc16is7xx_handle_rx()
626 dev_warn_ratelimited(port->dev, in sc16is7xx_handle_rx()
628 port->line, rxlen); in sc16is7xx_handle_rx()
629 port->icount.buf_overrun++; in sc16is7xx_handle_rx()
631 rxlen = sizeof(one->buf); in sc16is7xx_handle_rx()
644 one->buf[0] = sc16is7xx_port_read(port, SC16IS7XX_RHR_REG); in sc16is7xx_handle_rx()
647 sc16is7xx_fifo_read(port, one->buf, rxlen); in sc16is7xx_handle_rx()
653 port->icount.rx++; in sc16is7xx_handle_rx()
658 port->icount.brk++; in sc16is7xx_handle_rx()
662 port->icount.parity++; in sc16is7xx_handle_rx()
664 port->icount.frame++; in sc16is7xx_handle_rx()
666 port->icount.overrun++; in sc16is7xx_handle_rx()
668 lsr &= port->read_status_mask; in sc16is7xx_handle_rx()
680 ch = one->buf[i]; in sc16is7xx_handle_rx()
684 if (lsr & port->ignore_status_mask) in sc16is7xx_handle_rx()
690 rxlen -= bytes_read; in sc16is7xx_handle_rx()
693 tty_flip_buffer_push(&port->state->port); in sc16is7xx_handle_rx()
698 struct tty_port *tport = &port->state->port; in sc16is7xx_handle_tx()
703 if (unlikely(port->x_char)) { in sc16is7xx_handle_tx()
704 sc16is7xx_port_write(port, SC16IS7XX_THR_REG, port->x_char); in sc16is7xx_handle_tx()
705 port->icount.tx++; in sc16is7xx_handle_tx()
706 port->x_char = 0; in sc16is7xx_handle_tx()
710 if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) { in sc16is7xx_handle_tx()
720 dev_err_ratelimited(port->dev, in sc16is7xx_handle_tx()
726 txlen = kfifo_out_linear_ptr(&tport->xmit_fifo, &tail, txlen); in sc16is7xx_handle_tx()
731 if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS) in sc16is7xx_handle_tx()
734 if (kfifo_is_empty(&tport->xmit_fifo)) in sc16is7xx_handle_tx()
755 struct uart_port *port = &one->port; in sc16is7xx_update_mlines()
759 lockdep_assert_held_once(&one->efr_lock); in sc16is7xx_update_mlines()
762 changed = status ^ one->old_mctrl; in sc16is7xx_update_mlines()
767 one->old_mctrl = status; in sc16is7xx_update_mlines()
771 port->icount.rng++; in sc16is7xx_update_mlines()
773 port->icount.dsr++; in sc16is7xx_update_mlines()
779 wake_up_interruptible(&port->state->port.delta_msr_wait); in sc16is7xx_update_mlines()
787 struct uart_port *port = &s->p[portno].port; in sc16is7xx_port_irq()
790 mutex_lock(&one->efr_lock); in sc16is7xx_port_irq()
809 * time-out interrupt but no data in the FIFO. This is in sc16is7xx_port_irq()
830 dev_err_ratelimited(port->dev, in sc16is7xx_port_irq()
832 port->line, iir); in sc16is7xx_port_irq()
837 mutex_unlock(&one->efr_lock); in sc16is7xx_port_irq()
853 for (i = 0; i < s->devtype->nr_uart; ++i) in sc16is7xx_irq()
868 kthread_queue_delayed_work(&s->kworker, &s->poll_work, in sc16is7xx_poll_proc()
874 struct uart_port *port = &(to_sc16is7xx_one(ws, tx_work)->port); in sc16is7xx_tx_proc()
877 if ((port->rs485.flags & SER_RS485_ENABLED) && in sc16is7xx_tx_proc()
878 (port->rs485.delay_rts_before_send > 0)) in sc16is7xx_tx_proc()
879 msleep(port->rs485.delay_rts_before_send); in sc16is7xx_tx_proc()
881 mutex_lock(&one->efr_lock); in sc16is7xx_tx_proc()
883 mutex_unlock(&one->efr_lock); in sc16is7xx_tx_proc()
891 struct serial_rs485 *rs485 = &port->rs485; in sc16is7xx_reconf_rs485()
895 if (rs485->flags & SER_RS485_ENABLED) { in sc16is7xx_reconf_rs485()
898 if (rs485->flags & SER_RS485_RTS_AFTER_SEND) in sc16is7xx_reconf_rs485()
909 struct sc16is7xx_one_config config; in sc16is7xx_reg_proc() local
912 uart_port_lock_irqsave(&one->port, &irqflags); in sc16is7xx_reg_proc()
913 config = one->config; in sc16is7xx_reg_proc()
914 memset(&one->config, 0, sizeof(one->config)); in sc16is7xx_reg_proc()
915 uart_port_unlock_irqrestore(&one->port, irqflags); in sc16is7xx_reg_proc()
917 if (config.flags & SC16IS7XX_RECONF_MD) { in sc16is7xx_reg_proc()
921 if (one->port.mctrl & TIOCM_RTS) in sc16is7xx_reg_proc()
924 if (one->port.mctrl & TIOCM_DTR) in sc16is7xx_reg_proc()
927 if (one->port.mctrl & TIOCM_LOOP) in sc16is7xx_reg_proc()
929 sc16is7xx_port_update(&one->port, SC16IS7XX_MCR_REG, in sc16is7xx_reg_proc()
936 if (config.flags & SC16IS7XX_RECONF_IER) in sc16is7xx_reg_proc()
937 sc16is7xx_port_update(&one->port, SC16IS7XX_IER_REG, in sc16is7xx_reg_proc()
938 config.ier_mask, config.ier_val); in sc16is7xx_reg_proc()
940 if (config.flags & SC16IS7XX_RECONF_RS485) in sc16is7xx_reg_proc()
941 sc16is7xx_reconf_rs485(&one->port); in sc16is7xx_reg_proc()
947 struct sc16is7xx_port *s = dev_get_drvdata(one->port.dev); in sc16is7xx_ms_proc()
949 if (one->port.state) { in sc16is7xx_ms_proc()
950 mutex_lock(&one->efr_lock); in sc16is7xx_ms_proc()
952 mutex_unlock(&one->efr_lock); in sc16is7xx_ms_proc()
954 kthread_queue_delayed_work(&s->kworker, &one->ms_work, HZ); in sc16is7xx_ms_proc()
961 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_enable_ms()
963 lockdep_assert_held_once(&port->lock); in sc16is7xx_enable_ms()
965 kthread_queue_delayed_work(&s->kworker, &one->ms_work, 0); in sc16is7xx_enable_ms()
970 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_start_tx()
973 kthread_queue_work(&s->kworker, &one->tx_work); in sc16is7xx_start_tx()
983 * AutoRTS feature will de-activate RTS output. in sc16is7xx_throttle()
1013 return one->old_mctrl; in sc16is7xx_get_mctrl()
1018 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_set_mctrl()
1021 one->config.flags |= SC16IS7XX_RECONF_MD; in sc16is7xx_set_mctrl()
1022 kthread_queue_work(&s->kworker, &one->reg_work); in sc16is7xx_set_mctrl()
1041 kthread_cancel_delayed_work_sync(&one->ms_work); in sc16is7xx_set_termios()
1044 termios->c_cflag &= ~CMSPAR; in sc16is7xx_set_termios()
1047 switch (termios->c_cflag & CSIZE) { in sc16is7xx_set_termios()
1062 termios->c_cflag &= ~CSIZE; in sc16is7xx_set_termios()
1063 termios->c_cflag |= CS8; in sc16is7xx_set_termios()
1068 if (termios->c_cflag & PARENB) { in sc16is7xx_set_termios()
1070 if (!(termios->c_cflag & PARODD)) in sc16is7xx_set_termios()
1075 if (termios->c_cflag & CSTOPB) in sc16is7xx_set_termios()
1079 port->read_status_mask = SC16IS7XX_LSR_OE_BIT; in sc16is7xx_set_termios()
1080 if (termios->c_iflag & INPCK) in sc16is7xx_set_termios()
1081 port->read_status_mask |= SC16IS7XX_LSR_PE_BIT | in sc16is7xx_set_termios()
1083 if (termios->c_iflag & (BRKINT | PARMRK)) in sc16is7xx_set_termios()
1084 port->read_status_mask |= SC16IS7XX_LSR_BI_BIT; in sc16is7xx_set_termios()
1087 port->ignore_status_mask = 0; in sc16is7xx_set_termios()
1088 if (termios->c_iflag & IGNBRK) in sc16is7xx_set_termios()
1089 port->ignore_status_mask |= SC16IS7XX_LSR_BI_BIT; in sc16is7xx_set_termios()
1090 if (!(termios->c_cflag & CREAD)) in sc16is7xx_set_termios()
1091 port->ignore_status_mask |= SC16IS7XX_LSR_BRK_ERROR_MASK; in sc16is7xx_set_termios()
1094 port->status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS); in sc16is7xx_set_termios()
1095 if (termios->c_cflag & CRTSCTS) { in sc16is7xx_set_termios()
1098 port->status |= UPSTAT_AUTOCTS | UPSTAT_AUTORTS; in sc16is7xx_set_termios()
1100 if (termios->c_iflag & IXON) in sc16is7xx_set_termios()
1102 if (termios->c_iflag & IXOFF) in sc16is7xx_set_termios()
1110 sc16is7xx_port_write(port, SC16IS7XX_XON1_REG, termios->c_cc[VSTART]); in sc16is7xx_set_termios()
1111 sc16is7xx_port_write(port, SC16IS7XX_XOFF1_REG, termios->c_cc[VSTOP]); in sc16is7xx_set_termios()
1118 port->uartclk / 16 / 4 / 0xffff, in sc16is7xx_set_termios()
1119 port->uartclk / 16); in sc16is7xx_set_termios()
1127 uart_update_timeout(port, termios->c_cflag, baud); in sc16is7xx_set_termios()
1129 if (UART_ENABLE_MS(port, termios->c_cflag)) in sc16is7xx_set_termios()
1138 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_config_rs485()
1141 if (rs485->flags & SER_RS485_ENABLED) { in sc16is7xx_config_rs485()
1147 if (rs485->delay_rts_after_send) in sc16is7xx_config_rs485()
1148 return -EINVAL; in sc16is7xx_config_rs485()
1151 one->config.flags |= SC16IS7XX_RECONF_RS485; in sc16is7xx_config_rs485()
1152 kthread_queue_work(&s->kworker, &one->reg_work); in sc16is7xx_config_rs485()
1160 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_startup()
1194 one->irda_mode ? in sc16is7xx_startup()
1213 if (s->polling) in sc16is7xx_startup()
1214 kthread_queue_delayed_work(&s->kworker, &s->poll_work, in sc16is7xx_startup()
1222 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_shutdown()
1225 kthread_cancel_delayed_work_sync(&one->ms_work); in sc16is7xx_shutdown()
1238 if (s->polling) in sc16is7xx_shutdown()
1239 kthread_cancel_delayed_work_sync(&s->poll_work); in sc16is7xx_shutdown()
1241 kthread_flush_worker(&s->kworker); in sc16is7xx_shutdown()
1246 struct sc16is7xx_port *s = dev_get_drvdata(port->dev); in sc16is7xx_type()
1248 return (port->type == PORT_SC16IS7XX) ? s->devtype->name : NULL; in sc16is7xx_type()
1260 port->type = PORT_SC16IS7XX; in sc16is7xx_config_port()
1266 if ((s->type != PORT_UNKNOWN) && (s->type != PORT_SC16IS7XX)) in sc16is7xx_verify_port()
1267 return -EINVAL; in sc16is7xx_verify_port()
1268 if (s->irq != port->irq) in sc16is7xx_verify_port()
1269 return -EINVAL; in sc16is7xx_verify_port()
1312 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_get()
1323 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_set()
1335 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_direction_input()
1346 struct uart_port *port = &s->p[0].port; in sc16is7xx_gpio_direction_output()
1375 *valid_mask = s->gpio_valid_mask; in sc16is7xx_gpio_init_valid_mask()
1382 struct device *dev = s->p[0].port.dev; in sc16is7xx_setup_gpio_chip()
1384 if (!s->devtype->nr_gpio) in sc16is7xx_setup_gpio_chip()
1387 switch (s->mctrl_mask) { in sc16is7xx_setup_gpio_chip()
1389 s->gpio_valid_mask = GENMASK(7, 0); in sc16is7xx_setup_gpio_chip()
1392 s->gpio_valid_mask = GENMASK(3, 0); in sc16is7xx_setup_gpio_chip()
1395 s->gpio_valid_mask = GENMASK(7, 4); in sc16is7xx_setup_gpio_chip()
1401 if (s->gpio_valid_mask == 0) in sc16is7xx_setup_gpio_chip()
1404 s->gpio.owner = THIS_MODULE; in sc16is7xx_setup_gpio_chip()
1405 s->gpio.parent = dev; in sc16is7xx_setup_gpio_chip()
1406 s->gpio.label = dev_name(dev); in sc16is7xx_setup_gpio_chip()
1407 s->gpio.init_valid_mask = sc16is7xx_gpio_init_valid_mask; in sc16is7xx_setup_gpio_chip()
1408 s->gpio.direction_input = sc16is7xx_gpio_direction_input; in sc16is7xx_setup_gpio_chip()
1409 s->gpio.get = sc16is7xx_gpio_get; in sc16is7xx_setup_gpio_chip()
1410 s->gpio.direction_output = sc16is7xx_gpio_direction_output; in sc16is7xx_setup_gpio_chip()
1411 s->gpio.set = sc16is7xx_gpio_set; in sc16is7xx_setup_gpio_chip()
1412 s->gpio.base = -1; in sc16is7xx_setup_gpio_chip()
1413 s->gpio.ngpio = s->devtype->nr_gpio; in sc16is7xx_setup_gpio_chip()
1414 s->gpio.can_sleep = 1; in sc16is7xx_setup_gpio_chip()
1416 return gpiochip_add_data(&s->gpio, s); in sc16is7xx_setup_gpio_chip()
1426 struct device *dev = s->p[0].port.dev; in sc16is7xx_setup_irda_ports()
1428 count = device_property_count_u32(dev, "irda-mode-ports"); in sc16is7xx_setup_irda_ports()
1432 ret = device_property_read_u32_array(dev, "irda-mode-ports", in sc16is7xx_setup_irda_ports()
1438 if (irda_port[i] < s->devtype->nr_uart) in sc16is7xx_setup_irda_ports()
1439 s->p[irda_port[i]].irda_mode = true; in sc16is7xx_setup_irda_ports()
1453 struct device *dev = s->p[0].port.dev; in sc16is7xx_setup_mctrl_ports()
1455 count = device_property_count_u32(dev, "nxp,modem-control-line-ports"); in sc16is7xx_setup_mctrl_ports()
1459 ret = device_property_read_u32_array(dev, "nxp,modem-control-line-ports", in sc16is7xx_setup_mctrl_ports()
1464 s->mctrl_mask = 0; in sc16is7xx_setup_mctrl_ports()
1469 s->mctrl_mask |= SC16IS7XX_IOCONTROL_MODEM_A_BIT; in sc16is7xx_setup_mctrl_ports()
1471 s->mctrl_mask |= SC16IS7XX_IOCONTROL_MODEM_B_BIT; in sc16is7xx_setup_mctrl_ports()
1474 if (s->mctrl_mask) in sc16is7xx_setup_mctrl_ports()
1479 SC16IS7XX_IOCONTROL_MODEM_B_BIT, s->mctrl_mask); in sc16is7xx_setup_mctrl_ports()
1487 .delay_rts_after_send = 1, /* Not supported but keep returning -EINVAL */
1523 for (i = 0; i < devtype->nr_uart; i++) in sc16is7xx_probe()
1538 return -EPROBE_DEFER; in sc16is7xx_probe()
1541 s = devm_kzalloc(dev, struct_size(s, p, devtype->nr_uart), GFP_KERNEL); in sc16is7xx_probe()
1544 return -ENOMEM; in sc16is7xx_probe()
1548 device_property_read_u32(dev, "clock-frequency", &uartclk); in sc16is7xx_probe()
1550 s->polling = (irq <= 0); in sc16is7xx_probe()
1551 if (s->polling) in sc16is7xx_probe()
1555 s->clk = devm_clk_get_optional(dev, NULL); in sc16is7xx_probe()
1556 if (IS_ERR(s->clk)) in sc16is7xx_probe()
1557 return PTR_ERR(s->clk); in sc16is7xx_probe()
1559 ret = clk_prepare_enable(s->clk); in sc16is7xx_probe()
1563 freq = clk_get_rate(s->clk); in sc16is7xx_probe()
1572 return -EINVAL; in sc16is7xx_probe()
1575 s->devtype = devtype; in sc16is7xx_probe()
1578 kthread_init_worker(&s->kworker); in sc16is7xx_probe()
1579 s->kworker_task = kthread_run(kthread_worker_fn, &s->kworker, in sc16is7xx_probe()
1581 if (IS_ERR(s->kworker_task)) { in sc16is7xx_probe()
1582 ret = PTR_ERR(s->kworker_task); in sc16is7xx_probe()
1585 sched_set_fifo(s->kworker_task); in sc16is7xx_probe()
1592 for (i = 0; i < devtype->nr_uart; ++i) { in sc16is7xx_probe()
1593 s->p[i].port.line = SC16IS7XX_MAX_DEVS; in sc16is7xx_probe()
1597 for (i = 0; i < devtype->nr_uart; ++i) { in sc16is7xx_probe()
1599 SC16IS7XX_MAX_DEVS - 1, GFP_KERNEL); in sc16is7xx_probe()
1603 s->p[i].port.line = ret; in sc16is7xx_probe()
1606 s->p[i].port.dev = dev; in sc16is7xx_probe()
1607 s->p[i].port.irq = irq; in sc16is7xx_probe()
1608 s->p[i].port.type = PORT_SC16IS7XX; in sc16is7xx_probe()
1609 s->p[i].port.fifosize = SC16IS7XX_FIFO_SIZE; in sc16is7xx_probe()
1610 s->p[i].port.flags = UPF_FIXED_TYPE | UPF_LOW_LATENCY; in sc16is7xx_probe()
1611 s->p[i].port.iobase = i; in sc16is7xx_probe()
1617 s->p[i].port.membase = (void __iomem *)~0; in sc16is7xx_probe()
1618 s->p[i].port.iotype = UPIO_PORT; in sc16is7xx_probe()
1619 s->p[i].port.uartclk = freq; in sc16is7xx_probe()
1620 s->p[i].port.rs485_config = sc16is7xx_config_rs485; in sc16is7xx_probe()
1621 s->p[i].port.rs485_supported = sc16is7xx_rs485_supported; in sc16is7xx_probe()
1622 s->p[i].port.ops = &sc16is7xx_ops; in sc16is7xx_probe()
1623 s->p[i].old_mctrl = 0; in sc16is7xx_probe()
1624 s->p[i].regmap = regmaps[i]; in sc16is7xx_probe()
1626 mutex_init(&s->p[i].efr_lock); in sc16is7xx_probe()
1628 ret = uart_get_rs485_mode(&s->p[i].port); in sc16is7xx_probe()
1633 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_IER_REG, 0); in sc16is7xx_probe()
1635 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_EFCR_REG, in sc16is7xx_probe()
1640 kthread_init_work(&s->p[i].tx_work, sc16is7xx_tx_proc); in sc16is7xx_probe()
1641 kthread_init_work(&s->p[i].reg_work, sc16is7xx_reg_proc); in sc16is7xx_probe()
1642 kthread_init_delayed_work(&s->p[i].ms_work, sc16is7xx_ms_proc); in sc16is7xx_probe()
1645 ret = uart_add_one_port(&sc16is7xx_uart, &s->p[i].port); in sc16is7xx_probe()
1652 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_LCR_REG, in sc16is7xx_probe()
1658 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_EFR_REG, in sc16is7xx_probe()
1664 sc16is7xx_port_write(&s->p[i].port, SC16IS7XX_LCR_REG, 0x00); in sc16is7xx_probe()
1667 sc16is7xx_power(&s->p[i].port, 0); in sc16is7xx_probe()
1682 if (s->polling) { in sc16is7xx_probe()
1684 kthread_init_delayed_work(&s->poll_work, sc16is7xx_poll_proc); in sc16is7xx_probe()
1692 * back to a non-shared falling-edge trigger. in sc16is7xx_probe()
1708 if (s->gpio_valid_mask) in sc16is7xx_probe()
1709 gpiochip_remove(&s->gpio); in sc16is7xx_probe()
1713 for (i = 0; i < devtype->nr_uart; i++) { in sc16is7xx_probe()
1714 if (s->p[i].port.line < SC16IS7XX_MAX_DEVS) in sc16is7xx_probe()
1715 ida_free(&sc16is7xx_lines, s->p[i].port.line); in sc16is7xx_probe()
1717 uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port); in sc16is7xx_probe()
1721 kthread_stop(s->kworker_task); in sc16is7xx_probe()
1724 clk_disable_unprepare(s->clk); in sc16is7xx_probe()
1736 if (s->gpio_valid_mask) in sc16is7xx_remove()
1737 gpiochip_remove(&s->gpio); in sc16is7xx_remove()
1740 for (i = 0; i < s->devtype->nr_uart; i++) { in sc16is7xx_remove()
1741 kthread_cancel_delayed_work_sync(&s->p[i].ms_work); in sc16is7xx_remove()
1742 ida_free(&sc16is7xx_lines, s->p[i].port.line); in sc16is7xx_remove()
1743 uart_remove_one_port(&sc16is7xx_uart, &s->p[i].port); in sc16is7xx_remove()
1744 sc16is7xx_power(&s->p[i].port, 0); in sc16is7xx_remove()
1747 if (s->polling) in sc16is7xx_remove()
1748 kthread_cancel_delayed_work_sync(&s->poll_work); in sc16is7xx_remove()
1750 kthread_flush_worker(&s->kworker); in sc16is7xx_remove()
1751 kthread_stop(s->kworker_task); in sc16is7xx_remove()
1753 clk_disable_unprepare(s->clk); in sc16is7xx_remove()