Re: [PATCH v2 0/4] gpiolib: some fixup patches

From: Linus Walleij
Date: Thu Feb 28 2013 - 01:21:53 EST

On Wed, Feb 27, 2013 at 8:52 AM, Grant Likely <grant.likely@xxxxxxxxxxxx> wrote:

> I've been playing with an idea of pulling in some basic MMIO gpio
> access directly into gpiolib so that when appropriate gpiolib itself
> can have a fast path for doing the register access and shadow register
> management.

Shadow registers: isn't that what regmap usually does? Or
what are you referring to here?

But fastpath MMIO in the gpiolib is an appealing thought,
given that this was a design impetus in the early history of
the subsystem.

Linus Walleij
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