[RFC PATCH 0/3] If an IRQ is a GPIO, request and configure it
linus.walleij at linaro.org
Fri Aug 5 16:25:55 EDT 2011
On Fri, Aug 5, 2011 at 12:30 PM, Ben Dooks <ben-linux at fluff.org> wrote:
> On Fri, Aug 05, 2011 at 10:40:17AM +0100, Russell King - ARM Linux wrote:
>> Trying to go from IRQ to GPIO is not a good idea - most of the
>> IRQ <-> GPIO macros we have today are just plain broken. Many of them
>> just add or subtract a constant, which means non-GPIO IRQs have an
>> apparant GPIO number too. Couple this with the fact that all positive
>> GPIO numbers are valid, and this is a recipe for wrong GPIOs getting
>> used and GPIOs being requested for non-GPIO IRQs.
> Yes, and there's a pile without these defined/
And I'm piling a few patches *deleting* irq_to_gpio() from platforms that
define but actually don't use it, like U300 and SA1100.
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