Re: [PATCH v3] gpio: interrupt consistency check for OF GPIO IRQs

Stephen Warren
2013-09-03T17:29:47Z

On 09/03/2013 06:35 AM, Linus Walleij wrote:
> On Fri, Aug 30, 2013 at 9:53 PM, Stephen Warren <swarren@wwwdotorg.org> wrote:
>
>> I still haven't seen an answer to why we really care about this; how
>> many times has code actually allocated the same GPIO/IRQ when it
>> shouldn't, in a way that it wasn't detectable by some other mechanism,
>> i.e. the feature just not working? Why are we even trying to solve this
>> issue? I'm not totally convinced it even makes sense to try and solve it.
>
> We care about this because a number of OMAP boards are not
> working properly when booted from device tree, and they have a hard
> time figuring out a solution to the problem. Last try exploded. Now
> they are looking to create a patch that will fix the actual problem.

Is something missing from /proc/interrupts or /sys/kernel/debug/gpios?
If so, let's just add it.