From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/6] tty: serial: Add 8250-core based omap driver
Date: Wed, 16 Jul 2014 05:32:09 -0700 [thread overview]
Message-ID: <20140716123208.GA18374@atomide.com> (raw)
In-Reply-To: <53C66C0D.5060501@linutronix.de>
* Sebastian Andrzej Siewior <bigeasy@linutronix.de> [140716 05:14]:
> On 07/11/2014 08:41 AM, Tony Lindgren wrote:
> >
> > If the RX pin does not wake it up, you need to configure the
> > pinctrl-single entry for it, and configure that pin as a wake-up
> > interrupt. See the interrupts-extended entry in omap3-beagle-xm.dts.
>
> This does not help. Checking the manual, there is not something like
> PIN_OFF_WAKEUPENABLE for am33xx. There is just INPUT/OUTPUT, pull
> up/down + enabled/disabled and the mux_mode. For the interrupt, the HW
> referenced as omap3_pmx_core touches some bits in the pinmux register
> which do not exists on am33xx.
Right, on am33xx there's no IO chain wake-up path. AFAIK the only way
to provide wake events on am33xx would be to mux the RX pin temporarily
to a GPIO input. And sounds like that may work only if the GPIO is
in the first GPIO bank that's always on. I don't know if the other
GPIO banks on am33xx can provide wake up events.
> So I have nothing on HW around that could test wakeup scenario.
Bummer :( I'll give it a try again for the next revision.
Regards,
Tony
next prev parent reply other threads:[~2014-07-16 12:32 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
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
2014-07-10 14:30 ` Olivier Galibert
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
2014-07-10 14:54 ` One Thousand Gnomes
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
2014-07-10 6:28 ` Tony Lindgren
2014-07-16 8:26 ` Sebastian Andrzej Siewior
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 ` [PATCH 5/6] tty: serial: 8250-core: add rs485 support Sebastian Andrzej Siewior
2014-07-09 19:01 ` Lennart Sorensen
2014-07-10 15:55 ` Sebastian Andrzej Siewior
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
2014-07-10 7:09 ` Tony Lindgren
2014-07-10 15:47 ` Sebastian Andrzej Siewior
2014-07-10 16:03 ` Carlos Hernandez
2014-07-10 16:14 ` menon.nishanth at gmail.com
2014-07-11 6:41 ` Tony Lindgren
2014-07-16 12:11 ` Sebastian Andrzej Siewior
2014-07-16 12:32 ` Tony Lindgren [this message]
2014-07-16 13:00 ` Sekhar Nori
2014-08-08 11:05 ` Heikki Krogerus
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140716123208.GA18374@atomide.com \
--to=tony@atomide.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).