Hi Geert,

Geert Uytterhoeven <geert@linux-m68k.org> hat am 9. April 2015 um 09:37 geschrieben:

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Could you please explain the benefit / reason of this approach?

Since you have different logical modules in the subsystem, this allows to model the subsystem as separate modules and a separate interrupt controller, and have separate drivers for all modules.

Look at da9063 for an example (there are more according to "git grep irq_chip -- drivers/mfd", but not all of them may have DT bindings).

thanks for the hint, but this makes my patch series not really smaller. I invested a lot of time (started in September 2014) and i want to submit at least 1 of the 3 drivers soon as possible. I think the best approch would be to submit my series with option B as a proposal. In the discussion about the patch it would be easier to decide if a interrupt controller is really necessary.

Gr{oetje,eeting}s,

Geert

-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds

Stefan