diff options
| author | Eddie Huang <eddie.huang@mediatek.com> | 2016-08-12 10:41:11 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-31 16:01:26 +0200 |
| commit | 81bb549fdf144582f57d1df65a2517beb418dc8b (patch) | |
| tree | f5a000dff088cf53f013c7b5f18d152fd425ed20 /drivers/tty/serial/8250/8250_port.c | |
| parent | 490d5ce2d0130540f2003c2d01c921fe0917607d (diff) | |
serial: 8250_mtk: support big baud rate.
mediatek can support baud rate up to 4M.
the 'uart_get_baud_rate' function will limit the max baud rate.
Modify max baud to remove the limit.
Signed-off-by: Long Cheng <long.cheng@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250_port.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_port.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 7481b95c6d84..c45c1e3f3631 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -2504,8 +2504,6 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port, struct ktermios *termios, struct ktermios *old) { - unsigned int tolerance = port->uartclk / 100; - /* * Ask the core to calculate the divisor for us. * Allow 1% tolerance at the upper limit so uart clks marginally @@ -2514,7 +2512,7 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port, */ return uart_get_baud_rate(port, termios, old, port->uartclk / 16 / 0xffff, - (port->uartclk + tolerance) / 16); + port->uartclk); } void |