Subject: [PATCH 2/3] Add support for monitoring gpio switches

From: [email-masked] (Greg Kroah-Hartman)
Date: Fri, 4 Dec 2015 10:57:13 -0800

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 <[email-masked]>
> ---
>  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