[alsa-devel] [PATCH 1/3] irq: If an IRQ is a GPIO, request and configure it

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Aug 5 18:15:13 CEST 2011

On Fri, Aug 05, 2011 at 08:29:38AM -0700, Stephen Warren wrote:
> Mark Brown wrote at Thursday, August 04, 2011 11:35 PM:

> > 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.

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