On Tue, Aug 02, 2016 at 11:06:54AM +0200, Helmut Grohne wrote: > commit 6e14f7c1f2c2 ("tty: xuartps: Improve startup function") changed > cdns_uart_startup to disable the transmitter. It turns out the disabling > the transmitter may not be the best idea, because it tends to corrupt > serial output and may cause hangs. commit e3538c37ee38 ("tty: xuartps: > Beautify read-modify writes") accidentally changed > cdns_uart_console_write from temporarily enabling the transmitter to > permanently enabling it and thus improved the situation. > > Revert the disabling of the transmitter in cdns_uart_startup to have the > transmitter always active. > > Clean up cdns_uart_console_write by removing the now unneeded write to > the crontol register that formerly disabled the transmitter. > > Signed-off-by: Helmut Grohne <h.grohne@xxxxxxxxxx> > Link: https://lkml.kernel.org/r/20160729073858.GA1416@laureti-dev > Fixes: 6e14f7c1f2c2 ("tty: xuartps: Improve startup function") > Fixes: e3538c37ee38 ("tty: xuartps: Beautify read-modify writes") > --- > drivers/tty/serial/xilinx_uartps.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) I can't figure out the order in which to apply your patches for this driver, can you resend them all as a series so I know they will work together properly? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html