From: Sebastian Reichel <sre@kernel.org>
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: Thu, 11 Dec 2014 23:41:04 +0100 [thread overview]
Message-ID: <20141211224104.GA11666@earth.universe> (raw)
In-Reply-To: <20141211215943.4127.24792.stgit@notabene.brown>
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Hi,
On Fri, Dec 12, 2014 at 08:59:44AM +1100, NeilBrown wrote:
> A "tty slave" is a device connected via UART.
> It may need a driver to, for example, power the device on
> when the tty is opened, and power it off when the tty
> is released.
>
> A "tty slave" is a platform device which is declared as a
> child of the uart in device-tree:
>
> &uart1 {
> bluetooth {
> compatible = "tty,regulator";
> vdd-supply = <&vaux4>;
> };
> };
>
> runtime power management is used to power-up the device
> on tty_open() and power-down on tty_release().
>
> Signed-off-by: NeilBrown <neilb@suse.de>
FWIW:
Acked-By: Sebastian Reichel <sre@kernel.org>
-- Sebastian
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next prev parent reply other threads:[~2014-12-11 22:41 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 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
2014-12-11 21:59 ` [PATCH 1/3] TTY: add support for "tty slave" devices NeilBrown
2014-12-11 22:41 ` Sebastian Reichel [this message]
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
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
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