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

[Stephen Warren]

On 09/24/2013 02:31 AM, Linus Walleij wrote:
> On Mon, Sep 23, 2013 at 10:21 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote:
...
>> Perhaps rather than having the gpio_chip/irq_chip drivers physically
>> implement a function which calls this common code, they could set some
>> flags/data/... in the struct gpio_chip/irq_chip indicating that they
>> desire the core code that implements the error-checking to be enabled.
> 
> I think it should more be like a function they can call to flag
> a GPIO as used for IRQ.

For the record, that's pretty much exactly what I meant by implementing
it in the drivers. The irq_chip driver knows when the IRQ has been
requested, and calls some gpiolib function to mark the GPIO as
in-use-as-an-IRQ.
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