On Tue, Sep 29, 2020 at 01:46:59AM +0530, Naresh Kamboju wrote:
On Fri, 18 Sep 2020 at 07:51, Sasha Levin <sashal@xxxxxxxxxx> wrote:
From: Raviteja Narayanam <raviteja.narayanam@xxxxxxxxxx>
[ Upstream commit 42e11948ddf68b9f799cad8c0ddeab0a39da33e8 ]
On some platforms, the log is corrupted while console is being
registered. It is observed that when set_termios is called, there
are still some bytes in the FIFO to be transmitted.
So, wait for tx_empty inside cdns_uart_console_setup before calling
set_termios.
Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xxxxxxxxxx>
Reviewed-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1586413563-29125-2-git-send-email-raviteja.narayanam@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
stable rc branch 4.4 arm64 build broken.
../drivers/tty/serial/xilinx_uartps.c: In function ‘cdns_uart_console_setup’:
../drivers/tty/serial/xilinx_uartps.c:1170:40: error: ‘TX_TIMEOUT’
undeclared (first use in this function)
1170 | time_out = jiffies + usecs_to_jiffies(TX_TIMEOUT);
^~~~~~~~~~
Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
Dropped, thanks!
--
Thanks,
Sasha
