From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andreas Kemnade <andreas@kemnade.info>
Subject: Re: [PATCH 4/7] dt-bindings: gnss: add u-blox binding
Date: Thu, 3 May 2018 20:50:37 +0200
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To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Johan Hovold <johan@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Arnd Bergmann <arnd@arndb.de>, Pavel Machek <pavel@ucw.cz>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@vger.kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Rob Herring <robh+dt@kernel.org>
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On Thu, 3 May 2018 11:35:21 +0200
H. Nikolaus Schaller <hns@goldelico.com> wrote:


> I have realized that the w2sg0004 is an exception (although a Sirf chip)
> that it does not provide a WAKEUP signal. And another significant
> difference is that we have to keep the serdev UART enabled even if there
> is no user-space client. Otherwise we are not able to detect unexpected
> activity. So we unfortunately can't move serdev open/close into the .open
> and .close ops but need to open it in probe.
>=20
how much power does it use to keep the uart enabled? Or should it
better be reprogrammed as gpio?

Regards,
Andreas

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