blackfin: Subtract ANOMALY_05000230 on quot

Fix bug - up arrow key works abnormal for bf561 ezkit board

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 12b11da40b49..f9b5a72e261a 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -760,7 +760,7 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
         }
 
         baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
-        quot = uart_get_divisor(port, baud);
+        quot = uart_get_divisor(port, baud) - ANOMALY_05000230;
         spin_lock_irqsave(&uart->port.lock, flags);
 
         UART_SET_ANOMALY_THRESHOLD(uart, USEC_PER_SEC / baud * 15);