Using PXA arm board with MAX7319 GPIO expander input

[Marc Zyngier]

> I just saw that there is indeed no support for irq line handling in this
> driver. In order to use these lines as input for something like the
> gpio_keys driver, support for that should be added. I never used this
> driver and can't say whether it is under active development.

It should be rather easy to introduce something similar to what I did for
the pca953x driver (http://patchwork.kernel.org/patch/77418/)

MAX732x seems a lot saner than PCA953x, as it has at least a hardware
interrupt mask...

        M.
-- 
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