Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)

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To: todd.e.brandt@xxxxxxxxxxxxxxx, Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>, Petr Mladek <pmladek@xxxxxxxx>, rafael.j.wysocki@xxxxxxxxx, len.brown@xxxxxxxxx
Subject: Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
From: John Ogness <john.ogness@xxxxxxxxxxxxx>
Date: Thu, 14 Jul 2022 00:07:04 +0206
Cc: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, "open list:SERIAL DRIVERS" <linux-serial@xxxxxxxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>
In-reply-to: <875yk0908j.fsf@jogness.linutronix.de>
References: <12fb98fe27e23e3f74a139e5e8eb83a97a343372.camel@linux.intel.com> <51b9e2cc3baf61a604bd239b736ec2d12f1f6695.camel@linux.intel.com> <87czegxccb.fsf@jogness.linutronix.de> <045ebee30af2b80aaeace1dab18ecd113e3f17c7.camel@linux.intel.com> <87tu7qvx1q.fsf@jogness.linutronix.de> <CAHp75VfyzMNMO2NRwXwSjAmQqBbdRG3+SzyFDG+90dmvmg1xLQ@mail.gmail.com> <87o7xwbuoy.fsf@jogness.linutronix.de> <Ysvbp8vz7R9hDNqx@alley> <Ysv3JNs4RwE7kAou@google.com> <87ilo1wdac.fsf@jogness.linutronix.de> <c60f5634e8605cb4c2ef4646b6e511e6135bea48.camel@linux.intel.com> <7d79e9877d63cdb74144f38d8736959281b562cc.camel@linux.intel.com> <875yk0908j.fsf@jogness.linutronix.de>

Hi,

I have posted a v2 to bugzilla:

https://bugzilla.kernel.org/attachment.cgi?id=301414

This version allows console_stop()/console_start() to flush for the
non-suspend case.

Please test. Thanks.

John Ogness

References:
- PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Todd Brandt
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Todd Brandt
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: John Ogness
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Todd Brandt
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: John Ogness
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Andy Shevchenko
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: John Ogness
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Petr Mladek
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Sergey Senozhatsky
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: John Ogness
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Todd Brandt
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: Todd Brandt
- Re: PNP0501 serial driver takes almost 2 seconds to suspend/resume (printk issue)
  - From: John Ogness

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