Re: [PATCH v3] serial: samsung: Reorder the sequence of clock control when call s3c24xx_serial_set_termios()

From: Krzysztof Kozlowski
Date: Mon May 02 2016 - 08:04:52 EST

Next message: Chen Gang: "Re: [PATCH] mm/kasan/kasan.h: Fix boolean checking issue for kasan_report_enabled()"
Previous message: Steven Waren Waren: "Hi Dear, I.m Col Steven Waren, I am USA Army , but current in Ramadi Irag, although We donât know each other but it would be great to get to know you, do not be afraid in replying my mail for i have a very important and confidential matter that i want to discuss with you, i am in peace keep mission in Irag, for the sake of the crisis in Irag. i will be very happy If you can get back to me through my e-mail, please write me in this email, costwaren@xxxxxxxxx Sorry if you received this mail in your spam, it is due to recent connection error here in my country. I am waiting for your urgent reply. Regards, Col Steven Waren,"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Thu, Apr 21, 2016 at 11:58 AM, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote:
> This patch fixes the broken serial log when changing the clock source
> of uart device. Before disabling the original clock source, this patch
> enables the new clock source to protect the clock off state for a split second.
>
> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> Reviewed-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> Changes from v2:
> - Add reviewd-by tag from Marek Szyprowski
> - No changes about operation
>
> Changes from v1:
> - Enable the clock before changing the source by s3c24xx_serial_setsource()
> - Rebase it on Linux v4.6-rc1
>
> drivers/tty/serial/samsung.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)

Fixes synchronous abort on our Exynos5433-based board. This should be
marked for cc-stable. I'll send a port for that.

BR,
Krzysztof