Re: [PATCH v2] gpio: interrupt consistency check for OF GPIO IRQs

Stephen Warren
2013-08-22T20:53:15Z

On 08/21/2013 05:27 PM, Linus Walleij wrote:
> On Thu, Aug 22, 2013 at 1:10 AM, Stephen Warren <swarren@wwwdotorg.org> wrote:
>>> On Wednesday 21 of August 2013 15:38:54 Lars Poeschel wrote:
>
>>>> To solve this dilemma, perform an interrupt consistency check
>>>> when adding a GPIO chip: if the chip is both gpio-controller and
>>>> interrupt-controller, walk all children of the device tree,
>>
>> It seems a little odd to solve this only for DT. What about the non-DT case?
>
> DT is the hardware configuration system that lets you request
> the same resource in two ways, i.e. it allows one and the same
> node to be both gpio-controller and interrupt-controller, and
> start handing out the same line as both GPIO and IRQ
> independently.

Huh? What stops systems using board files and platform data from having
this issue?