On Fri, Aug 05, 2011 at 08:29:38AM -0700, Stephen Warren wrote:

Mark Brown wrote at Thursday, August 04, 2011 11:35 PM:

quoted

But it's not a bug to use a GPIO as an IRQ source, otherwise we wouldn't
have gpio_to_irq() in the first place.

2) Two pieces of unrelated code somehow accidentally get a GPIO and IRQ
number that map to the same resource, e.g. due to incorrect board files or
Device Tree content. This is probably a bug, but ends up looking exactly
the same as far as the IRQ code's gpio_request call failing in the patch I
posted.

Right, but this doesn't mean we can break the legitimate users to catch
the buggy ones.