From: Tony Lindgren <tony@atomide.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Felipe Balbi <balbi@ti.com>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH 5/5] tty: serial: Add 8250-core based omap driver
Date: Wed, 13 Aug 2014 09:37:23 -0700 [thread overview]
Message-ID: <20140813163722.GA9239@atomide.com> (raw)
In-Reply-To: <53EB9066.3060208@linutronix.de>
* Sebastian Andrzej Siewior <bigeasy@linutronix.de> [140813 09:23]:
> On 07/21/2014 11:35 AM, Tony Lindgren wrote:
>
> > Looks like the following is needed to avoid the error, no idea why..
> > But this is what we also do in omap-serial.c. It may be needed in
> > other places too?
>
> Yes, there was a third one on shutdown.
OK
> > Also, no luck yet on runtime PM. If the console is enabled omap won't
> > idle, and if no serial console is enabled, it just hangs. Will try
> > to debug this part further, it may be also related to the above.
>
> My beaglebone xm won't do idle:
>
> | omap3_pm_off_mode_enable: Core OFF disabled due to errata i583
>
> but it would if it could, right? That means that I can't test the wake
> via UART on this one?
Hmm OK yes that's disabled for some earlier ES revisions. I guess you
could comment out the limitations for PM_SDRC_WAKEUP_ERRATUM_i583
in both cpuidle34xx.c and pm34xx.c and see if off-idle is usable for
your tests :) It might be flakey but still usable for testing.
> So I will try to fix the tx-pm, fold patches and then prepare another
> batch.
OK great, let me know if you need more help.
> And I could verify that DMA works on that omap3 :)
OK
Regards,
Tony
WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/5] tty: serial: Add 8250-core based omap driver
Date: Wed, 13 Aug 2014 09:37:23 -0700 [thread overview]
Message-ID: <20140813163722.GA9239@atomide.com> (raw)
In-Reply-To: <53EB9066.3060208@linutronix.de>
* Sebastian Andrzej Siewior <bigeasy@linutronix.de> [140813 09:23]:
> On 07/21/2014 11:35 AM, Tony Lindgren wrote:
>
> > Looks like the following is needed to avoid the error, no idea why..
> > But this is what we also do in omap-serial.c. It may be needed in
> > other places too?
>
> Yes, there was a third one on shutdown.
OK
> > Also, no luck yet on runtime PM. If the console is enabled omap won't
> > idle, and if no serial console is enabled, it just hangs. Will try
> > to debug this part further, it may be also related to the above.
>
> My beaglebone xm won't do idle:
>
> | omap3_pm_off_mode_enable: Core OFF disabled due to errata i583
>
> but it would if it could, right? That means that I can't test the wake
> via UART on this one?
Hmm OK yes that's disabled for some earlier ES revisions. I guess you
could comment out the limitations for PM_SDRC_WAKEUP_ERRATUM_i583
in both cpuidle34xx.c and pm34xx.c and see if off-idle is usable for
your tests :) It might be flakey but still usable for testing.
> So I will try to fix the tx-pm, fold patches and then prepare another
> batch.
OK great, let me know if you need more help.
> And I could verify that DMA works on that omap3 :)
OK
Regards,
Tony
next prev parent reply other threads:[~2014-08-13 16:37 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-16 14:44 [PATCH v4] 8250-core based serial driver for OMAP Sebastian Andrzej Siewior
2014-07-16 14:44 ` Sebastian Andrzej Siewior
2014-07-16 14:44 ` Sebastian Andrzej Siewior
2014-07-16 14:44 ` [PATCH 1/5] tty: serial: 8250 core: provide a function to export uart_8250_port Sebastian Andrzej Siewior
2014-07-16 14:44 ` Sebastian Andrzej Siewior
2014-07-16 14:45 ` [PATCH 2/5] tty: serial: 8250 core: allow to overwrite & export serial8250_startup() Sebastian Andrzej Siewior
2014-07-16 14:45 ` Sebastian Andrzej Siewior
2014-07-16 14:45 ` Sebastian Andrzej Siewior
2014-07-16 14:45 ` [PATCH 3/5] tty: serial: 8250 core: allow to set ->throttle / ->unthrottle callbacks Sebastian Andrzej Siewior
2014-07-16 14:45 ` Sebastian Andrzej Siewior
2014-07-16 14:45 ` [PATCH 4/5] tty: serial: 8250 core: add runtime pm Sebastian Andrzej Siewior
2014-07-16 14:45 ` Sebastian Andrzej Siewior
2014-07-16 15:16 ` Felipe Balbi
2014-07-16 15:16 ` Felipe Balbi
2014-07-16 15:16 ` Felipe Balbi
2014-07-16 15:54 ` Sebastian Andrzej Siewior
2014-07-16 15:54 ` Sebastian Andrzej Siewior
2014-07-16 16:06 ` Felipe Balbi
2014-07-16 16:06 ` Felipe Balbi
2014-07-16 16:06 ` Felipe Balbi
2014-07-16 16:40 ` Sebastian Andrzej Siewior
2014-07-16 16:40 ` Sebastian Andrzej Siewior
2014-07-16 16:40 ` Sebastian Andrzej Siewior
2014-07-16 16:46 ` Felipe Balbi
2014-07-16 16:46 ` Felipe Balbi
2014-07-16 16:46 ` Felipe Balbi
2014-07-17 15:31 ` Peter Hurley
2014-07-17 15:31 ` Peter Hurley
2014-07-17 15:43 ` Sebastian Andrzej Siewior
2014-07-17 15:43 ` Sebastian Andrzej Siewior
2014-07-17 16:02 ` Felipe Balbi
2014-07-17 16:02 ` Felipe Balbi
2014-07-17 16:02 ` Felipe Balbi
2014-07-17 16:06 ` Sebastian Andrzej Siewior
2014-07-17 16:06 ` Sebastian Andrzej Siewior
2014-07-17 16:18 ` Felipe Balbi
2014-07-17 16:18 ` Felipe Balbi
2014-07-17 16:18 ` Felipe Balbi
2014-07-18 8:35 ` Sebastian Andrzej Siewior
2014-07-18 8:35 ` Sebastian Andrzej Siewior
2014-07-18 8:35 ` Sebastian Andrzej Siewior
2014-07-18 15:31 ` Felipe Balbi
2014-07-18 15:31 ` Felipe Balbi
2014-07-18 15:31 ` Felipe Balbi
2014-07-18 15:53 ` Peter Hurley
2014-07-18 15:53 ` Peter Hurley
2014-07-18 16:02 ` Felipe Balbi
2014-07-18 16:02 ` Felipe Balbi
2014-07-18 16:02 ` Felipe Balbi
2014-07-16 14:45 ` [PATCH 5/5] tty: serial: Add 8250-core based omap driver Sebastian Andrzej Siewior
2014-07-16 14:45 ` Sebastian Andrzej Siewior
2014-07-17 7:09 ` Tony Lindgren
2014-07-17 7:09 ` Tony Lindgren
2014-07-17 7:09 ` Tony Lindgren
2014-07-17 7:42 ` Sebastian Andrzej Siewior
2014-07-17 7:42 ` Sebastian Andrzej Siewior
2014-07-17 8:12 ` Tony Lindgren
2014-07-17 8:12 ` Tony Lindgren
2014-07-17 10:06 ` Sebastian Andrzej Siewior
2014-07-17 10:06 ` Sebastian Andrzej Siewior
2014-07-18 6:24 ` Tony Lindgren
2014-07-18 6:24 ` Tony Lindgren
2014-07-18 6:24 ` Tony Lindgren
2014-07-21 9:35 ` Tony Lindgren
2014-07-21 9:35 ` Tony Lindgren
2014-07-21 9:35 ` Tony Lindgren
2014-08-13 16:20 ` Sebastian Andrzej Siewior
2014-08-13 16:20 ` Sebastian Andrzej Siewior
2014-08-13 16:37 ` Tony Lindgren [this message]
2014-08-13 16:37 ` Tony Lindgren
2014-07-17 14:54 ` Felipe Balbi
2014-07-17 14:54 ` Felipe Balbi
2014-07-17 14:54 ` Felipe Balbi
2014-07-17 15:11 ` Sebastian Andrzej Siewior
2014-07-17 15:11 ` Sebastian Andrzej Siewior
2014-07-17 16:04 ` Felipe Balbi
2014-07-17 16:04 ` Felipe Balbi
2014-07-17 16:04 ` Felipe Balbi
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