[PATCH 1/1] serial/uuc_uart: Support higher bitrates than 115200 Bit/s
From: Alexander Stein <hidden>
Date: 2015-07-09 08:40:04
Also in:
linux-serial
Subsystem:
freescale quicc engine ucc uart driver, the rest, tty layer and serial drivers · Maintainers:
Timur Tabi, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
The maximum bitrate supported depends on the clock rate used in BRG. This is stored in port.uartclk during probe. Respecting the 16x oversampling higher bitrates can be supported. Signed-off-by: Alexander Stein <redacted> --- drivers/tty/serial/ucc_uart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 7d2532b..73190f5 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c@@ -950,7 +950,7 @@ static void qe_uart_set_termios(struct uart_port *port, if ((termios->c_cflag & CREAD) == 0) port->read_status_mask &= ~BD_SC_EMPTY; - baud = uart_get_baud_rate(port, termios, old, 0, 115200); + baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk / 16); /* Do we really need a spinlock here? */ spin_lock_irqsave(&port->lock, flags);
--
2.3.6