[PATCH] Make MMCI driver compile without gpiolib

[Linus Walleij]

Hm thinking back at this:

2009/9/27 Russell King - ARM Linux <linux at arm.linux.org.uk>:

> The real problem is that U300 doesn't implement gpio_is_valid() -
> which is part of the GPIO API and not specific to GPIOLIB.

None of the GPIO drivers in drivers/gpio implement gpio_is_valid()
though they all select GPIOLIB which in turn selects GENERIC_GPIO.

With one of them being the PL061 this means that the not so
unlikely combination of PL061+PL180 will fail to compile (even
though I'm not aware of such a platform for the time being).

Is it worth taking a run over drivers/gpio and try to fix this or
atleast the PL061 driver? I can have a look at it.

Yours,
Linus Walleij