From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Arnd Bergmann <arnd@arndb.de>, Rob Herring <robh+dt@kernel.org>,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Russell King <linux@arm.linux.org.uk>,
Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <k.kozlowski@samsung.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org,
Olof Johansson <olof@lixom.net>
Subject: Re: [PATCH 2/3] Add support for monitoring gpio switches
Date: Fri, 4 Dec 2015 10:57:13 -0800 [thread overview]
Message-ID: <20151204185713.GA22925@kroah.com> (raw)
In-Reply-To: <1449250275-23435-3-git-send-email-martyn.welch@collabora.co.uk>
On Fri, Dec 04, 2015 at 05:31:14PM +0000, Martyn Welch wrote:
> Select Chromebooks have gpio attached to switches used to cause the
> firmware to enter alternative modes of operation and/or control other
> device characteristics (such as write protection on flash devices). This
> patch adds a driver that exposes a read-only interface to allow these
> signals to be read from user space.
>
> This functionality has been generalised to provide support for any device
> with device tree support which needs to identify a gpio as being used for a
> specific task.
>
> Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
> ---
> drivers/misc/Kconfig | 11 ++++
> drivers/misc/Makefile | 1 +
> drivers/misc/gpio-switch.c | 160 +++++++++++++++++++++++++++++++++++++++++++++
Why isn't this in drivers/gpio/ ?
why make it a misc driver?
thanks,
greg k-h
next prev parent reply other threads:[~2015-12-04 18:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-04 17:31 Add support for monitoring gpio switches Martyn Welch
2015-12-04 17:31 ` [PATCH 1/3] Device tree binding documentation for gpio-switch Martyn Welch
2015-12-07 17:37 ` Rob Herring
2015-12-07 21:10 ` Martyn Welch
2015-12-11 12:39 ` Linus Walleij
2015-12-11 14:06 ` Rob Herring
2015-12-14 14:28 ` Linus Walleij
[not found] ` <CACRpkdYvU6YG5yRCLsyS7sq816t3shWw51OTR2-fkp-FqSeESg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-12-14 15:45 ` Rob Herring
2015-12-15 9:09 ` Markus Pargmann
2016-03-02 16:03 ` Rob Herring
[not found] ` <CAL_JsqLX-F=-k83_-5-QL2QZpAArQqOHjE+19c1wvNKWayYfMw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-07 8:26 ` Markus Pargmann
2015-12-04 17:31 ` [PATCH 2/3] Add support for monitoring gpio switches Martyn Welch
2015-12-04 18:14 ` [PATCH] fix noderef.cocci warnings kbuild test robot
2015-12-04 18:14 ` [PATCH 2/3] Add support for monitoring gpio switches kbuild test robot
2015-12-04 18:57 ` Greg Kroah-Hartman [this message]
2015-12-05 10:42 ` Martyn Welch
2015-12-11 9:08 ` Linus Walleij
2015-12-16 10:11 ` Martyn Welch
2015-12-22 9:25 ` Linus Walleij
2015-12-04 17:31 ` [PATCH 3/3] ARM: dts: Addition of binding for gpio switches on peach-pi Martyn Welch
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