On Thu, Jun 25, 2020 at 03:19:05PM +0530, Vabhav Sharma wrote: > From: Vabhav Sharma <[email protected]> > > The formula for the baud rate is > baud rate = "baud clock / ((OSR+1) × SBR) > > Algorithm used in function lpuart32_serial_setbrg() only changes > the SBR. Even with maxmum value put in, OSR stays at 0x7 and the > lowest baud rate would be ~ 2600 bps > > Update the algorithm to allow driver operation at 1200,2400 or > 600 bps > > Signed-off-by: Vabhav Sharma <[email protected]> > --- > drivers/tty/serial/fsl_lpuart.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c > index 90298c4..0fd0fa5f 100644 > --- a/drivers/tty/serial/fsl_lpuart.c > +++ b/drivers/tty/serial/fsl_lpuart.c > @@ -1925,6 +1925,10 @@ static void __lpuart32_serial_setbrg(struct uart_port > *port, > tmp_sbr++; > } > > + if (tmp_sbr > UARTBAUD_SBR_MASK) { > + continue; > + }
Always use scripts/checkpatch.pl on your patches so you do not get grumpy emails from maintainers telling you to use scripts/checkpatch.pl on your patches...
