From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: Re: [PATCH 2/3] Add support for monitoring gpio switches Date: Fri, 4 Dec 2015 10:57:13 -0800 Message-ID: <20151204185713.GA22925@kroah.com> References: <1449250275-23435-1-git-send-email-martyn.welch@collabora.co.uk> <1449250275-23435-3-git-send-email-martyn.welch@collabora.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1449250275-23435-3-git-send-email-martyn.welch@collabora.co.uk> Sender: linux-samsung-soc-owner@vger.kernel.org To: Martyn Welch Cc: Arnd Bergmann , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , Kukjin Kim , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Olof Johansson List-Id: devicetree@vger.kernel.org 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 > --- > 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