diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 8d2cec0f03c2..dcebb28ffbc4 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1769,7 +1769,9 @@ static void atmel_get_ip_name(struct uart_port *port) /* * Only USART devices from at91sam9260 SOC implement fractional - * baudrate. + * baudrate. It is available for all asynchronous modes, with the + * following restriction: the sampling clock's duty cycle is not + * constant. */ atmel_port->has_frac_baudrate = false; atmel_port->has_hw_timer = false; @@ -2213,8 +2215,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, * then * 8 CD + FP = selected clock / (2 * baudrate) */ - if (atmel_port->has_frac_baudrate && - (mode & ATMEL_US_USMODE) == ATMEL_US_USMODE_NORMAL) { + if (atmel_port->has_frac_baudrate) { div = DIV_ROUND_CLOSEST(port->uartclk, baud * 2); cd = div >> 3; fp = div & ATMEL_US_FP_MASK; |