From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
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>,
NeilBrown <neil@brown.name>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] TTY/slave: add driver for w2sg0004 GPS
Date: Mon, 15 Dec 2014 11:39:54 +0000 [thread overview]
Message-ID: <20141215113954.21e2ea61@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20141212160607.361d20db@notabene.brown>
> > Am I missing some w2sg004 specific bits here ?
>
> There is particular behaviour that the device is both turned on and turned
> off by toggling a GPIO, and the only way to detect which state it is in is
> to watch the RX uart line (by reconfiguring it as a GPIO).
Ok so it is somewhat different to things like the Broadcom and the more
usual 'wait for idle, drop power' setup.
Alan
next prev parent reply other threads:[~2014-12-15 11:40 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 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
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 [this message]
2014-12-12 12:11 ` Grant Likely
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
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