Porting a custom interrupt handler from kernel 2.6.25 to 3.16.45

[Andrew Lunn]

> In the end Russell, I thank you once more for your kind help and I
> will try to re-factor the existing code to fit into the framework, the
> existing stuff was looking strange to me as well, but lacking an
> overview of the architecture lead me to ask this noob questions.

Hi Mircea

Things are probably a lot easier if your custom interrupt controller
is daisy-chained off a standard interrupt controller. If it is, you
don't need to touch this low level code. No hacks are needed, and you
probably get portable code.

      Andrew