From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johan Hovold <johan@kernel.org>
Subject: Re: [PATCH v5 3/5] misc serdev: Add w2sg0004 (gps receiver) power
 control driver
Date: Mon, 19 Mar 2018 15:05:55 +0100
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Cc: Johan Hovold <johan@kernel.org>, Mark Rutland <mark.rutland@arm.com>, DTML <devicetree@vger.kernel.org>, linux-omap <linux-omap@vger.kernel.org>, Jonathan Cameron <jic23@kernel.org>, Arnd Bergmann <arnd@arndb.de>, Tony Lindgren <tony@atomide.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Russell King <linux@armlinux.org.uk>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Thierry Reding <treding@nvidia.com>, Rob Herring <robh+dt@kernel.org>, Kevin Hilman <khilman@baylibre.com>, =?iso-8859-1?Q?Beno=EEt?= Cousson <bcousson@baylibre.com>, kernel@pyra-handheld.com, Andreas Kemnade <andreas@kemnade.info>, Discussions about the Letux Kernel <letux-kernel@openphoenux.org>, Andreas =?iso-8859-1?Q?F=E4rber?= <afaerber@suse.de>Linu
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On Wed, Mar 07, 2018 at 04:53:12PM +0100, H. Nikolaus Schaller wrote:

> If I look for example at the camera module drivers provided by
> drivers/media/i2c, most of them could be easily power-controlled from
> user-space by i2c-tools and 1-2 gpios through /sys/class/gpio and
> a big set of scripts.
> 
> Still they have a place in the kernel and cameras are powered on
> if the device is opened and powered down if it is closed.
> 
> So I am still trying to understand the rationale and logic (if one exists)
> behind having them in kernel but rejecting our driver which does the
> same for a different class of devices.

For media we have a framework in place; for gps we do not (yet).

Johan