From: Fabio Estevam <festevam@gmail.com>
To: Steve Twiss <stwiss.opensource@diasemi.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>,
LINUX-KERNEL <linux-kernel@vger.kernel.org>,
LINUX-SERIAL <linux-serial@vger.kernel.org>,
Lucas Stach <l.stach@pengutronix.de>,
Uwe Kleine-Konig <u.kleine-koenig@pengutronix.de>,
Support Opensource <support.opensource@diasemi.com>
Subject: Re: [PATCH V1] serial: imx: revert setup DCEDTE early and ensure DCD and RI irqs to be off
Date: Tue, 23 May 2017 13:26:28 -0300 [thread overview]
Message-ID: <CAOMZO5CT5MS1WGm_rCJ61Ambh+rMapsQWD84RXtagtt3HhmZwg@mail.gmail.com> (raw)
In-Reply-To: <20170523123145.E268B3FAD4@swsrvapps-01.diasemi.com>
Hi Steve,
On Tue, May 23, 2017 at 9:17 AM, Steve Twiss
<stwiss.opensource@diasemi.com> wrote:
> From: Steve Twiss <stwiss.opensource@diasemi.com>
>
> Revert the commit e61c38d85b7392e ("serial: imx: setup DCEDTE early and
> ensure DCD and RI irqs to be off")
>
> The patch submitted to setup DCEDTE early and ensure DCD and RI irqs to
> be off, causes a serial console display problem the i.MX6Q SABRESD board.
> The console becomes unreadable and unwritable.
>
> Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
> Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
>
> ---
> This patch applies against linux-next and v4.12-rc2
>
> Hi,
>
> I have been seeing a problem with the serial output console on the i.MX6Q
> SABRESD, but not the i.MX6DL SABRESD. Everything was fine up to
> linux-mainline/v4.11 but changed after linux-next/next-20170501.
>
> Some bisection has pointed at the commit
> e61c38d85b7392e033ee03bca46f1d6006156175 which, once removed from my
> linux-next/v4.12-rc2 build allows the i.MX6Q board to display the console
> correctly again.
>
> This patch removes the original commit e61c38d85b7392e ("serial: imx:
> setup DCEDTE early and ensure DCD and RI irqs to be off") from linux-next
> v4.12-rc2 and fixes the serial problem seen in the i.MX6Q SABRESD board.
How can the error be reproduced?
Care to share more details of the error, please?
next prev parent reply other threads:[~2017-05-23 16:26 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-23 12:17 [PATCH V1] serial: imx: revert setup DCEDTE early and ensure DCD and RI irqs to be off Steve Twiss
2017-05-23 14:09 ` Uwe Kleine-König
2017-05-23 14:28 ` Steve Twiss
2017-05-23 14:37 ` Uwe Kleine-König
2017-05-23 15:01 ` Steve Twiss
2017-05-23 16:08 ` Uwe Kleine-König
2017-05-24 10:28 ` Steve Twiss
2017-05-24 11:57 ` Uwe Kleine-König
2017-05-23 16:26 ` Fabio Estevam [this message]
2017-05-24 10:32 ` Steve Twiss
2017-05-24 11:52 ` Fabio Estevam
2017-05-24 12:02 ` Uwe Kleine-König
2017-05-24 12:49 ` Steve Twiss
2017-05-24 13:52 ` Fabio Estevam
2017-05-24 16:08 ` Steve Twiss
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