Re: [PATCH v4] gpio: Driver for SYSCON-based GPIOs

On Thu, 30 Jan 2014 14:54:36 +0100
Linus Walleij [off-list ref] wrote:

On Mon, Jan 13, 2014 at 5:56 PM, Alexander Shiyan [off-list ref] wrote:

quoted

SYSCON driver was designed for using memory areas (registers)
that are used in several subsystems. There are systems (CPUs)
which use bits in one register for various purposes and thus
should be handled by various kernel subsystems. This driver
allows you to use the individual SYSCON bits as GPIOs.
ARM CLPS711X SYSFLG1 input lines has been added as first user
of this driver.

Signed-off-by: Alexander Shiyan <shc_work-JGs/UdohzUI@public.gmane.org>

Oh the pain. I am so ambivalent of this patch as it obfuscates
some stuff about the hardware that the driver should know,
while at the same time being elegant in a way.

What does the ARM SoC maintainers think about this approach?

Arnd, Olof, Kevin: is this something you'd like to see deployed?

Ping.

-- 
Alexander Shiyan [off-list ref]
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