On Thu, Sep 01, 2022 at 05:39:34PM +0300, Ilpo Järvinen wrote:
> Tx'ing does not correctly account Tx'ed characters into icount.tx.
> Using uart_xmit_advance() fixes the problem.
> 
> Cc: <stable@vger.kernel.org> # serial: Create uart_xmit_advance()
> Fixes: 2d908b38d409 ("serial: Add Tegra Combined UART driver")
> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
> ---
>  drivers/tty/serial/tegra-tcu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Difficult to review without a copy of the first patch in my inbox. I was
able to find it on lore, though and this does seem to do the right
thing, so:

Acked-by: Thierry Reding <treding@nvidia.com>