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| author | Matthias Brugger | 2014-10-09 18:23:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2014-11-06 05:12:02 +0100 |
| commit | cd92208f6996f7d190a15eb278e7d02499e2d264 (patch) | |
| tree | b9e84ee8845609502711fd06b6b96f0982c86a54 | |
| parent | tty: Prevent "read/write wait queue active!" log flooding (diff) | |
| download | kernel-qcow2-linux-cd92208f6996f7d190a15eb278e7d02499e2d264.tar.gz kernel-qcow2-linux-cd92208f6996f7d190a15eb278e7d02499e2d264.tar.xz kernel-qcow2-linux-cd92208f6996f7d190a15eb278e7d02499e2d264.zip | |
tty: serial: 8250_mtk: Fix quot calculation
The calculation of value quot for highspeed register set to three
was wrong. This patch fixes the calculation so that the serial port
for baudrates bigger then 576000 baud is working correctly.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/8250/8250_mtk.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c index 8f37d57165ec..de7aae523b37 100644 --- a/drivers/tty/serial/8250/8250_mtk.c +++ b/drivers/tty/serial/8250/8250_mtk.c @@ -81,7 +81,7 @@ mtk8250_set_termios(struct uart_port *port, struct ktermios *termios, /* Set to highest baudrate supported */ if (baud >= 1152000) baud = 921600; - quot = DIV_ROUND_CLOSEST(port->uartclk, 256 * baud); + quot = (port->uartclk / (256 * baud)) + 1; } /* |