Re: [PATCH 1/2] gpio: don't override irq_*_resources() callbacks

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

On Mon, Aug 3, 2015 at 10:53 AM, Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
> On Fri, Jul 31, 2015 at 2:48 PM, Rabin Vincent <rabin@xxxxxx> wrote:
>
>> If the driver has specified its own irq_{request/release}_resources()
>> functions, don't override them.  The gpio-etraxfs driver will use this.
>>
>> Signed-off-by: Rabin Vincent <rabin@xxxxxx>
>
> Perfectly reasonable given the usecase in patch 2/2. Patch applied.

So for drivers currently using GPIOLIB_IRQCHIP the calbacks were
always overridden, even if they supplied their own?

Hence after this change, that's no longer the case, and pinctrl-at91.c
will use its own, which are identical to the generic ones, modulo the bug fix
in 5b76e79c77264899 ("gpiolib: irqchip: prevent driver unloading if gpio is
used as irq only"). Oops...

I already wrote an untested patch to convert pinctrl-at91 to the generic
ones, shall I send that right away?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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                                -- Linus Torvalds
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