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;