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From: Eugeniu Rosca <erosca@de.adit-jv.com>
To: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>,
	<wsa@the-dreams.de>, <geert@linux-m68k.org>,
	<linux-renesas-soc@vger.kernel.org>
Cc: <linux-serial@vger.kernel.org>,
	Dirk Behme <dirk.behme@de.bosch.com>,
	Eugeniu Rosca <erosca@de.adit-jv.com>,
	Eugeniu Rosca <roscaeugeniu@gmail.com>,
	"George G. Davis" <george_davis@mentor.com>,
	Andy Lowe <andy_lowe@mentor.com>,
	Joshua Frkuska <joshua_frkuska@mentor.com>,
	Tobias Franzen <tfranzen@de.adit-jv.com>, <magnus.damm@gmail.com>,
	<greg@kroah.com>
Subject: Re: [PATCH v2] serial: sh-sci: Support for HSCIF RX sampling point adjustment
Date: Wed, 27 Mar 2019 19:35:55 +0100	[thread overview]
Message-ID: <20190327183555.GA23991@vmlxhi-102.adit-jv.com> (raw)
In-Reply-To: <1522856931-6225-1-git-send-email-ulrich.hecht+renesas@gmail.com>

Dear Renesas Open Source team,

We've recently switched from rcar-3.7.x to rcar-3.9.x [1] kernel and the
latter contains this patch [2] by virtue of rcar-3.9.0 commit [3], which
mirrors v4.18-rc1 commit [4] in mainline.

JFYI, quite far away in the delivery chain, we've received below report:

> With this patch [2-4] there are reports about broken data
> communication with 115200 baud with SXM module. Reverting
> this patch results in successful communication, again.

While this scarce information barely helps anybody, I thought that
sharing it with you might be beneficial in case you collect several
reports linked to this specific commit in future, meaning it potentially
adds a regression.

Also, if you are aware of any userland changes that might be
required/assumed by this patch or in case you have any alternative
ideas how to avoid reverting this patch, your feedback would be very
appreciated.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-bsp.git/tag/?h=rcar-3.9.3
[2] https://patchwork.kernel.org/patch/10322809/
[3] https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-bsp.git/commit/?id=e395fc813539
[4] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=63ba1e00f178

Best regards,
Eugeniu.

  parent reply	other threads:[~2019-03-27 18:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-04 15:48 [PATCH v2] serial: sh-sci: Support for HSCIF RX sampling point adjustment Ulrich Hecht
2018-04-24 15:15 ` Geert Uytterhoeven
2019-03-27 18:35 ` Eugeniu Rosca [this message]
2019-03-28  8:33   ` Wolfram Sang
2019-03-28  9:24   ` Geert Uytterhoeven
2019-03-28 10:16     ` Dirk Behme
2019-03-28 11:30       ` Dirk Behme
2019-03-29  7:05         ` Dirk Behme
2019-03-29  9:46           ` Ulrich Hecht
2019-03-29  9:56             ` Geert Uytterhoeven
2019-03-29 10:35               ` Ulrich Hecht
2019-03-29 11:01                 ` Ulrich Hecht
2019-03-29 11:17             ` Dirk Behme
2019-03-29  9:46           ` Geert Uytterhoeven
2019-03-29 12:13             ` Dirk Behme
2019-03-29 13:00               ` Geert Uytterhoeven
2019-03-29 14:11                 ` Ulrich Hecht
2019-04-01  6:05                 ` Dirk Behme

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