From: Carlos Hernandez <ceh@ti.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Tony Lindgren <tony@atomide.com>,
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
Subject: Re: [PATCH 6/6] tty: serial: Add 8250-core based omap driver
Date: Thu, 10 Jul 2014 12:03:29 -0400 [thread overview]
Message-ID: <53BEB951.2040207@ti.com> (raw)
In-Reply-To: <53BEB5AF.7010604@linutronix.de>
On 07/10/2014 11:47 AM, Sebastian Andrzej Siewior wrote:
> That core_pwrdm shows only up on dra7. However with both drivers (mine
> and the current omap serial) the UART went down after three secs (as
> expected) and didn't accept any characters while writing on the
> console. If I wrote something on it via network (like echo a >
> /dev/ttyO0) it came back and was working as long as I kept it busy. The
> thing is that RX does not wake it up. Any idea?
To wakeup from UART you need:
1) Append no_console_suspend to bootargs
2) echo enabled > /sys/devices/ocp.3/4806a000.serial/tty/ttyO0/power/wakeup
WARNING: multiple messages have this Message-ID (diff)
From: ceh@ti.com (Carlos Hernandez)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/6] tty: serial: Add 8250-core based omap driver
Date: Thu, 10 Jul 2014 12:03:29 -0400 [thread overview]
Message-ID: <53BEB951.2040207@ti.com> (raw)
In-Reply-To: <53BEB5AF.7010604@linutronix.de>
On 07/10/2014 11:47 AM, Sebastian Andrzej Siewior wrote:
> That core_pwrdm shows only up on dra7. However with both drivers (mine
> and the current omap serial) the UART went down after three secs (as
> expected) and didn't accept any characters while writing on the
> console. If I wrote something on it via network (like echo a >
> /dev/ttyO0) it came back and was working as long as I kept it busy. The
> thing is that RX does not wake it up. Any idea?
To wakeup from UART you need:
1) Append no_console_suspend to bootargs
2) echo enabled > /sys/devices/ocp.3/4806a000.serial/tty/ttyO0/power/wakeup
next prev parent reply other threads:[~2014-07-10 16:03 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-09 17:49 (unknown), Sebastian Andrzej Siewior
2014-07-09 17:49 ` No subject Sebastian Andrzej Siewior
2014-07-09 17:49 ` [PATCH 1/6] tty: serial: 8250 core: provide a function to export uart_8250_port Sebastian Andrzej Siewior
2014-07-09 17:49 ` Sebastian Andrzej Siewior
2014-07-10 14:30 ` Olivier Galibert
2014-07-10 14:30 ` Olivier Galibert
2014-07-16 8:22 ` Sebastian Andrzej Siewior
2014-07-16 8:22 ` Sebastian Andrzej Siewior
2014-07-09 17:49 ` [PATCH 2/6] tty: serial: 8250 core: allow to overwrite & export serial8250_startup() Sebastian Andrzej Siewior
2014-07-09 17:49 ` Sebastian Andrzej Siewior
2014-07-10 14:54 ` One Thousand Gnomes
2014-07-10 14:54 ` One Thousand Gnomes
2014-07-10 14:55 ` Sebastian Andrzej Siewior
2014-07-10 14:55 ` Sebastian Andrzej Siewior
2014-07-09 17:49 ` [PATCH 3/6] tty: serial: 8250 core: add runtime pm Sebastian Andrzej Siewior
2014-07-09 17:49 ` Sebastian Andrzej Siewior
2014-07-10 6:28 ` Tony Lindgren
2014-07-10 6:28 ` Tony Lindgren
2014-07-16 8:26 ` Sebastian Andrzej Siewior
2014-07-16 8:26 ` Sebastian Andrzej Siewior
2014-07-21 13:34 ` Mika Westerberg
2014-07-21 13:34 ` Mika Westerberg
2014-07-09 17:49 ` [PATCH 4/6] tty: serial: 8250-core: reorder serial8250_stop_rx() & serial8250_start_tx() Sebastian Andrzej Siewior
2014-07-09 17:49 ` Sebastian Andrzej Siewior
2014-07-09 17:49 ` [PATCH 5/6] tty: serial: 8250-core: add rs485 support Sebastian Andrzej Siewior
2014-07-09 17:49 ` Sebastian Andrzej Siewior
2014-07-09 19:01 ` Lennart Sorensen
2014-07-09 19:01 ` Lennart Sorensen
2014-07-10 15:55 ` Sebastian Andrzej Siewior
2014-07-10 15:55 ` Sebastian Andrzej Siewior
2014-07-10 14:52 ` One Thousand Gnomes
2014-07-10 14:52 ` One Thousand Gnomes
2014-07-09 17:49 ` [PATCH 6/6] tty: serial: Add 8250-core based omap driver Sebastian Andrzej Siewior
2014-07-09 17:49 ` Sebastian Andrzej Siewior
2014-07-10 7:09 ` Tony Lindgren
2014-07-10 7:09 ` Tony Lindgren
2014-07-10 15:47 ` Sebastian Andrzej Siewior
2014-07-10 15:47 ` Sebastian Andrzej Siewior
2014-07-10 16:03 ` Carlos Hernandez [this message]
2014-07-10 16:03 ` Carlos Hernandez
2014-07-10 16:14 ` menon.nishanth
2014-07-10 16:14 ` menon.nishanth at gmail.com
2014-07-11 6:41 ` Tony Lindgren
2014-07-11 6:41 ` Tony Lindgren
2014-07-16 12:11 ` Sebastian Andrzej Siewior
2014-07-16 12:11 ` Sebastian Andrzej Siewior
2014-07-16 12:32 ` Tony Lindgren
2014-07-16 12:32 ` Tony Lindgren
2014-07-16 13:00 ` Sekhar Nori
2014-07-16 13:00 ` Sekhar Nori
2014-08-08 11:05 ` Heikki Krogerus
2014-08-08 11:05 ` Heikki Krogerus
2014-07-09 17:58 ` [RFC v3] 8250-core based serial driver for OMAP Sebastian Andrzej Siewior
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