On Sun, Dec 29, 2019 at 04:45:59PM +0100, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From cb47b9f8630ae3fa3f5fbd0c7003faba7abdf711 Mon Sep 17 00:00:00 2001
From: David Engraf <david.engraf@xxxxxxxxx>
Date: Mon, 16 Dec 2019 09:54:03 +0100
Subject: [PATCH] tty/serial: atmel: fix out of range clock divider handling
Use MCK_DIV8 when the clock divider is > 65535. Unfortunately the mode
register was already written thus the clock selection is ignored.
Fix by doing the baud rate calulation before setting the mode.
Fixes: 5bf5635ac170 ("tty/serial: atmel: add fractional baud rate support")
Signed-off-by: David Engraf <david.engraf@xxxxxxxxx>
Acked-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxxxxxx>
Acked-by: Richard Genoud <richard.genoud@xxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20191216085403.17050-1-david.engraf@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Fixed up context due to missing 377fedd1866a ("tty/serial: atmel: add ISO7816
support"), queued for 4.19-4.9.
--
Thanks,
Sasha
