From: Pavel Machek <pavel@ucw.cz>
To: NeilBrown <neilb@suse.de>
Cc: Grant Likely <grant.likely@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mark Rutland <mark.rutland@arm.com>, Jiri Slaby <jslaby@suse.cz>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] TTY: add support for "tty slave" devices.
Date: Sun, 28 Dec 2014 15:20:10 +0100 [thread overview]
Message-ID: <20141228142010.GA3922@amd> (raw)
In-Reply-To: <20141211215943.4127.24792.stgit@notabene.brown>
Hi!
> index 8c4fd0332028..b59501ee2f21 100644
> --- a/Documentation/devicetree/bindings/serial/of-serial.txt
> +++ b/Documentation/devicetree/bindings/serial/of-serial.txt
> @@ -39,6 +39,10 @@ Optional properties:
> driver is allowed to detect support for the capability even without this
> property.
>
> +Optional child node:
> +- a platform device listed as a child node will be probed and
> + powered-on whenever the tty is in use (open).
> +
> Example:
>
> uart@80230000 {
Hmm. Other devices may want it the other way around: probe the device
behind the uart, make it control power and open/close of the uart, and
hide the /dev/ttyXX from userspace...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2014-12-28 14:20 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 21:59 [PATCH 0/3] Add support for 'tty-slaves' described by devicetree NeilBrown
2014-12-11 21:59 ` [PATCH 2/3] TTY: add slave driver to power-on device via a regulator NeilBrown
2014-12-11 22:58 ` Sebastian Reichel
2014-12-12 0:46 ` Marcel Holtmann
2014-12-12 1:31 ` Sebastian Reichel
2014-12-12 5:01 ` NeilBrown
2014-12-11 23:32 ` Peter Hurley
2014-12-12 5:27 ` NeilBrown
2014-12-12 11:59 ` Peter Hurley
2014-12-12 12:05 ` Grant Likely
2014-12-11 21:59 ` [PATCH 1/3] TTY: add support for "tty slave" devices NeilBrown
2014-12-11 22:41 ` Sebastian Reichel
2014-12-11 23:18 ` Peter Hurley
2014-12-12 5:23 ` NeilBrown
2014-12-12 13:02 ` Peter Hurley
2014-12-13 14:23 ` One Thousand Gnomes
2014-12-16 16:14 ` Peter Hurley
2014-12-13 14:12 ` One Thousand Gnomes
2014-12-12 11:59 ` Grant Likely
2014-12-13 17:46 ` Sebastian Reichel
2014-12-13 22:22 ` Grant Likely
2014-12-28 14:20 ` Pavel Machek [this message]
2015-01-02 21:33 ` NeilBrown
2015-01-04 10:18 ` Pavel Machek
2015-01-05 7:09 ` NeilBrown
2015-01-05 13:43 ` Pavel Machek
2015-01-05 15:41 ` One Thousand Gnomes
2015-01-05 16:28 ` Pavel Machek
2014-12-11 21:59 ` [PATCH 3/3] TTY/slave: add driver for w2sg0004 GPS NeilBrown
2014-12-11 23:04 ` Sebastian Reichel
2014-12-11 23:11 ` One Thousand Gnomes
2014-12-12 5:06 ` NeilBrown
2014-12-15 11:39 ` One Thousand Gnomes
2014-12-12 12:11 ` Grant Likely
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