Re: [PATCH] GPIOLIB: add generic gpio_set_pull API

From: Linus Walleij
Date: Tue Aug 09 2011 - 06:11:55 EST

On Tue, Aug 9, 2011 at 3:45 AM, Rohit Vaswani <rvaswani@xxxxxxxxxxxxxx> wrote:

> If we add this API - the remaining gpio controls like drive strength and
> function select could also be added,

I agree.

> which eats into the pinmux domain.

That's not so bad, since the pinctrl/pinmux subsystem is just a prototype
people may want to wrap up their drivers into gpio_chip/gpiolib as
they stand today to atleast get some isolation. Later on they can
refactor and migrate to a pinctrl/pinmux subsystem.

The latter will take some time to provide anyway, since I have been
asked to restructure it so as not to use a global pin number space.

> Linus W. had a patch earlier which added an API for a gpio config to be
> specified through gpiolib. " gpio: add a custom configuration mechanism to
> gpiolib" which is sort of an extensible model of this API.

Yes I think I have already suggested a bunch of ways to skin this
cat but somehow none of them seem to win general approval.

Linus Walleij
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