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SubjectRe: [PATCH][RESEND] gpio: Emma Mobile GPIO driver V2
On Thu, May 17, 2012 at 03:22:23PM +0900, Magnus Damm wrote:
> From: Magnus Damm <damm@opensource.se>
>
> This patch is V2 of the Emma Mobile GPIO driver. This
> driver is designed to be reusable between multiple SoCs
> that share the same basic building block, but so far it
> has only been used on Emma Mobile EV2.
>
> Each driver instance handles 32 GPIOs with individually
> maskable IRQs. The driver operates on two I/O memory
> ranges and the 32 GPIOs are hooked up to two interrupts.
>
> In the case of Emma Mobile EV2 this GPIO building block
> is used as main external interrupt controller hooking up
> 159 GPIOS as 159 interrupts via 5 driver instances and
> 10 interrupts to the GIC and the Cortex-A9 Dual.
>
> Signed-off-by: Magnus Damm <damm@opensource.se>
> Acked-by: Linus Walleij <linus.walleij@linaro.org>
> ---
>
> Rafael, can you please pick up?
>
> Changes since V1:
> - use inline for private data functions using container_of()
> - use BIT(n) instead of 1 << n
> - added legacy irq domain support for static mappings

My distaste for arbitrary static mappings aside, it makes no sense to
support this as a module if the irq domain can't be cleaned up at
present.


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