Re: [PATCH/RFC] gpio: em: Use dynamic allocation of GPIOs

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

Hi Arnd,

On Mon, Nov 17, 2014 at 3:34 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Monday 17 November 2014 15:30:32 Geert Uytterhoeven wrote:
>> Use dynamic allocation of GPIOs instead of looking at the gpio%u alias
>> in DT.
>> ---
>>   - Is this correct? Not having to care about the alias would simplify the
>>     to-be-written DT binding documentation.
>>   - Completely untested.
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>>
>
> This will obviously break any user that expects a particular gpio
> number, in particular board files, but I guess also user space
> that tries to access the gpios through sysfs.
>
> If you don't have any of those, I guess it's correct.

Emev2/kzm9d was the first DT-only shmobile SoC/board, so the kernel
part should be OK.

No idea about userspace.

Gr{oetje,eeting}s,

                        Geert

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

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
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