202 struct cdns_uart {  struct
226 #define to_cdns_uart(_nb) container_of(_nb, struct cdns_uart, \  argument
238 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_handle_rx()  local
246 	is_rxbs_support = cdns_uart->quirks & CDNS_UART_RXBS_SUPPORT;  in cdns_uart_handle_rx()
329 static void cdns_rts_gpio_enable(struct cdns_uart *cdns_uart, bool enable)  in cdns_rts_gpio_enable()  argument
333 	if (cdns_uart->gpiod_rts) {  in cdns_rts_gpio_enable()
334 		gpiod_set_value(cdns_uart->gpiod_rts, enable);  in cdns_rts_gpio_enable()
336 		val = readl(cdns_uart->port->membase + CDNS_UART_MODEMCR);  in cdns_rts_gpio_enable()
341 		writel(val, cdns_uart->port->membase + CDNS_UART_MODEMCR);  in cdns_rts_gpio_enable()
349 static void cdns_rs485_tx_setup(struct cdns_uart *cdns_uart)  in cdns_rs485_tx_setup()  argument
353 	enable = cdns_uart->port->rs485.flags & SER_RS485_RTS_ON_SEND;  in cdns_rs485_tx_setup()
354 	cdns_rts_gpio_enable(cdns_uart, enable);  in cdns_rs485_tx_setup()
356 	cdns_uart->rs485_tx_started = true;  in cdns_rs485_tx_setup()
363 static void cdns_rs485_rx_setup(struct cdns_uart *cdns_uart)  in cdns_rs485_rx_setup()  argument
367 	enable = cdns_uart->port->rs485.flags & SER_RS485_RTS_AFTER_SEND;  in cdns_rs485_rx_setup()
368 	cdns_rts_gpio_enable(cdns_uart, enable);  in cdns_rs485_rx_setup()
370 	cdns_uart->rs485_tx_started = false;  in cdns_rs485_rx_setup()
394 	struct cdns_uart *cdns_uart = container_of(t, struct cdns_uart, tx_timer);  in cdns_rs485_rx_callback()  local
400 	cdns_rs485_rx_setup(cdns_uart);  in cdns_rs485_rx_callback()
409 static u64 cdns_calc_after_tx_delay(struct cdns_uart *cdns_uart)  in cdns_calc_after_tx_delay()  argument
414 	return cdns_uart->port->frame_time  in cdns_calc_after_tx_delay()
415 	       + DIV_ROUND_UP(cdns_uart->port->frame_time, 7)  in cdns_calc_after_tx_delay()
416 	       + (u64)cdns_uart->port->rs485.delay_rts_after_send * NSEC_PER_MSEC;  in cdns_calc_after_tx_delay()
427 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_handle_tx()  local
437 		if (cdns_uart->port->rs485.flags & SER_RS485_ENABLED) {  in cdns_uart_handle_tx()
438 			cdns_uart->tx_timer.function = &cdns_rs485_rx_callback;  in cdns_uart_handle_tx()
439 			rts_delay = ns_to_ktime(cdns_calc_after_tx_delay(cdns_uart));  in cdns_uart_handle_tx()
440 			hrtimer_start(&cdns_uart->tx_timer, rts_delay, HRTIMER_MODE_REL);  in cdns_uart_handle_tx()
457 	writel(CDNS_UART_IXR_TXEMPTY, cdns_uart->port->membase + CDNS_UART_IER);  in cdns_uart_handle_tx()
575 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_set_baud_rate()  local
589 	cdns_uart->baud = baud;  in cdns_uart_set_baud_rate()
609 	struct cdns_uart *cdns_uart = to_cdns_uart(nb);  in cdns_uart_clk_notifier_cb()  local
612 	port = cdns_uart->port;  in cdns_uart_clk_notifier_cb()
626 		if (!cdns_uart_calc_baud_divs(ndata->new_rate, cdns_uart->baud,  in cdns_uart_clk_notifier_cb()
632 		uart_port_lock_irqsave(cdns_uart->port, &flags);  in cdns_uart_clk_notifier_cb()
639 		uart_port_unlock_irqrestore(cdns_uart->port, flags);  in cdns_uart_clk_notifier_cb()
649 		uart_port_lock_irqsave(cdns_uart->port, &flags);  in cdns_uart_clk_notifier_cb()
654 		cdns_uart->baud = cdns_uart_set_baud_rate(cdns_uart->port,  in cdns_uart_clk_notifier_cb()
655 				cdns_uart->baud);  in cdns_uart_clk_notifier_cb()
659 			uart_port_lock_irqsave(cdns_uart->port, &flags);  in cdns_uart_clk_notifier_cb()
681 		uart_port_unlock_irqrestore(cdns_uart->port, flags);  in cdns_uart_clk_notifier_cb()
696 	struct cdns_uart *cdns_uart = container_of(t, struct cdns_uart, tx_timer);  in cdns_rs485_tx_callback()  local
698 	uart_port_lock(cdns_uart->port);  in cdns_rs485_tx_callback()
699 	cdns_uart_handle_tx(cdns_uart->port);  in cdns_rs485_tx_callback()
700 	uart_port_unlock(cdns_uart->port);  in cdns_rs485_tx_callback()
712 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_start_tx()  local
732 	if (cdns_uart->port->rs485.flags & SER_RS485_ENABLED) {  in cdns_uart_start_tx()
733 		if (!cdns_uart->rs485_tx_started) {  in cdns_uart_start_tx()
734 			hrtimer_update_function(&cdns_uart->tx_timer, cdns_rs485_tx_callback);  in cdns_uart_start_tx()
735 			cdns_rs485_tx_setup(cdns_uart);  in cdns_uart_start_tx()
736 			return hrtimer_start(&cdns_uart->tx_timer,  in cdns_uart_start_tx()
751 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_stop_tx()  local
753 	if (cdns_uart->port->rs485.flags & SER_RS485_ENABLED)  in cdns_uart_stop_tx()
754 		cdns_rs485_rx_setup(cdns_uart);  in cdns_uart_stop_tx()
943 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_startup()  local
949 	is_brk_support = cdns_uart->quirks & CDNS_UART_RXBS_SUPPORT;  in cdns_uart_startup()
951 	ret = reset_control_deassert(cdns_uart->rstc);  in cdns_uart_startup()
971 	if (cdns_uart->port->rs485.flags & SER_RS485_ENABLED)  in cdns_uart_startup()
972 		cdns_rs485_rx_setup(cdns_uart);  in cdns_uart_startup()
1033 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_shutdown()  local
1035 	if (cdns_uart->port->rs485.flags & SER_RS485_ENABLED)  in cdns_uart_shutdown()
1036 		hrtimer_cancel(&cdns_uart->tx_timer);  in cdns_uart_shutdown()
1147 	struct cdns_uart *cdns_uart_data = port->private_data;  in cdns_uart_get_mctrl()
1169 	struct cdns_uart *cdns_uart_data = port->private_data;  in cdns_uart_set_mctrl()
1501 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_uart_resume()  local
1510 		ret = clk_enable(cdns_uart->pclk);  in cdns_uart_resume()
1514 		ret = clk_enable(cdns_uart->uartclk);  in cdns_uart_resume()
1516 			clk_disable(cdns_uart->pclk);  in cdns_uart_resume()
1538 		clk_disable(cdns_uart->uartclk);  in cdns_uart_resume()
1539 		clk_disable(cdns_uart->pclk);  in cdns_uart_resume()
1556 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_runtime_suspend()  local
1558 	clk_disable(cdns_uart->uartclk);  in cdns_runtime_suspend()
1559 	clk_disable(cdns_uart->pclk);  in cdns_runtime_suspend()
1566 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_runtime_resume()  local
1569 	ret = clk_enable(cdns_uart->pclk);  in cdns_runtime_resume()
1573 	ret = clk_enable(cdns_uart->uartclk);  in cdns_runtime_resume()
1575 		clk_disable(cdns_uart->pclk);  in cdns_runtime_resume()
1615 	struct cdns_uart *cdns_uart = port->private_data;  in cdns_rs485_config()  local
1625 		hrtimer_setup(&cdns_uart->tx_timer, &cdns_rs485_tx_callback, CLOCK_MONOTONIC,  in cdns_rs485_config()
1631 		hrtimer_cancel(&cdns_uart->tx_timer);  in cdns_rs485_config()
1647 	struct cdns_uart *cdns_uart_data;  in cdns_uart_probe()
1871 	struct cdns_uart *cdns_uart_data = port->private_data;  in cdns_uart_remove()