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From:   John Ogness <john.ogness@linutronix.de>
To:     todd.e.brandt@linux.intel.com,
        Sergey Senozhatsky <senozhatsky@chromium.org>,
        Petr Mladek <pmladek@suse.com>, rafael.j.wysocki@intel.com,
        len.brown@intel.com
Cc:     Andy Shevchenko <andy.shevchenko@gmail.com>,
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        "open list:SERIAL DRIVERS" <linux-serial@vger.kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>
Subject: Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume
 (printk issue)
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Date:   Fri, 15 Jul 2022 08:20:27 +0206
Message-ID: <8735f2x5q4.fsf@jogness.linutronix.de>
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On 2022-07-14, Todd Brandt <todd.e.brandt@linux.intel.com> wrote:
> I ran with your fix on 30 systems. On the 7 machines where this
> problem appears, the patch fixes it completely. On the 23 machines
> where this problem does not appear, there are no issues or
> regressions.
>
> Fix verified, thank you!

I have posted [0] an official patch for 5.19-rc7. For the posted
version, I added more information to the commit message and comments.

Todd, thanks for reporting and testing!

John

[0] https://lore.kernel.org/lkml/20220715061042.373640-1-john.ogness@linutronix.de