diff options
| author | Jiri Slaby (SUSE) <jirislaby@kernel.org> | 2022-10-04 12:49:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-03 03:32:40 +0100 |
| commit | 2d141e683e9ac7041c0350bb7b5e31f5f02ddbe3 (patch) | |
| tree | b76e9fe486faec633694df29c8bdff7bac98a382 /drivers/tty/serial/altera_uart.c | |
| parent | 8275b48b278096edc1e3ea5aa9cf946a10022f79 (diff) | |
tty: serial: use uart_port_tx() helper
uart_port_tx() is a new helper to send characters to the device. Use it
in these drivers.
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Richard Genoud <richard.genoud@gmail.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: "Andreas Färber" <afaerber@suse.de>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20221004104927.14361-3-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/altera_uart.c')
| -rw-r--r-- | drivers/tty/serial/altera_uart.c | 29 |
1 files changed, 5 insertions, 24 deletions
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c index 82f2790de28d..316074bb23e9 100644 --- a/drivers/tty/serial/altera_uart.c +++ b/drivers/tty/serial/altera_uart.c @@ -247,31 +247,12 @@ static void altera_uart_rx_chars(struct uart_port *port) static void altera_uart_tx_chars(struct uart_port *port) { - struct circ_buf *xmit = &port->state->xmit; - - if (port->x_char) { - /* Send special char - probably flow control */ - altera_uart_writel(port, port->x_char, ALTERA_UART_TXDATA_REG); - port->x_char = 0; - port->icount.tx++; - return; - } - - while (altera_uart_readl(port, ALTERA_UART_STATUS_REG) & - ALTERA_UART_STATUS_TRDY_MSK) { - if (xmit->head == xmit->tail) - break; - altera_uart_writel(port, xmit->buf[xmit->tail], - ALTERA_UART_TXDATA_REG); - xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); - port->icount.tx++; - } - - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) - uart_write_wakeup(port); + u8 ch; - if (uart_circ_empty(xmit)) - altera_uart_stop_tx(port); + uart_port_tx(port, ch, + altera_uart_readl(port, ALTERA_UART_STATUS_REG) & + ALTERA_UART_STATUS_TRDY_MSK, + altera_uart_writel(port, ch, ALTERA_UART_TXDATA_REG)); } static irqreturn_t altera_uart_interrupt(int irq, void *data) |