Re: [PATCH 00/15] ARM: sunxi: add A31 PL pins support

[Maxime Ripard]

On Thu, Apr 10, 2014 at 01:14:26AM +0800, Chen-Yu Tsai wrote:
> >  3) other things I haven't noticed yet :-)
> 
> Reworking EINT to use one interrupt per bank will yield some more surprises.
> 
> There's also new gpiolib irqchip helpers, but that will require reworking
> each pin bank into separate gpio chips. May be more work than just adding
> different irq domains for different banks.
> 
> See: https://lkml.org/lkml/2014/3/25/175

I'm not sure it's worth it actually. Using these helpers will probably
simplify the A31/A23 case, where you have one interrupt controller per
bank, but it will be much more complicated to handle the A10/A20 case
where you have a single interrupt controller for all the banks.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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