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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Wednesday 04 September 2013 11:29:47, Stephen Warren wrote:
> On 09/03/2013 06:35 AM, Linus Walleij wrote:
> > On Fri, Aug 30, 2013 at 9:53 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> 
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.

That would require procfs to be mounted to /proc and even CONFIG_PROC_FS to be 
compiled in. Drivers have to work without that requirement.
That would require CONFIG_DEBUG_FS to be set, right? Drivers have to work 
without that.
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux