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

From: Greg Kroah-Hartman
Date: Fri Dec 04 2015 - 13:57:20 EST


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@xxxxxxxxxxxxxxx>
> ---
> 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
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