On Tue, Jun 30, 2020 at 04:42:11PM -0700, Daniel Winkler wrote: > This reverts commit 0eeaf62981ecc79e8395ca8caa1570eaf3a12257. That is not an upstream commit. You probably mean: commit 7b668c064ec33f3d687c3a413d05e355172e6c92 Author: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> Date: Thu May 7 02:31:32 2020 +0300 serial: 8250: Fix max baud limit in generic 8250 port And you didn't cc the commit author (hereby fixed). Thanks, Lukas > > The change regresses the QCA6174A-3 bluetooth chip, preventing > firmware from being properly loaded. We have verified that without > this patch, the chip works as intended. > > Signed-off-by: Daniel Winkler <danielwinkler@xxxxxxxxxx> > --- > > drivers/tty/serial/8250/8250_port.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c > index 1632f7d25acca..e057c65ac1580 100644 > --- a/drivers/tty/serial/8250/8250_port.c > +++ b/drivers/tty/serial/8250/8250_port.c > @@ -2618,8 +2618,6 @@ 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 > @@ -2628,7 +2626,7 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port, > */ > return uart_get_baud_rate(port, termios, old, > port->uartclk / 16 / UART_DIV_MAX, > - (port->uartclk + tolerance) / 16); > + port->uartclk); > } > > void > -- > 2.27.0.212.ge8ba1cc988-goog