Re: [PATCH/RFC 5/6] staging: board: Add support for devices with complex dependencies

From: Geert Uytterhoeven
Date: Sun Apr 05 2015 - 05:01:18 EST

Hi Laurent,

On Sat, Apr 4, 2015 at 2:46 PM, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
>> + for (i = 0; i < dev->ngpios; i++)
>> + gpio_request_one(dev->gpios[i].gpio, dev->gpios[i].flags,
>> + pdev->name);
> Aren't GPIO numbers dynamic too in DT-based systems ? Beside, shouldn't it be

Apparently not, as the old legacy number still works, and it doesn't work

> the responsibility of the drievr to request the GPIOs it needs ?

As far as I understand it, on Armadillo this is used more for platform
configuration than for device configuration, as it affects multiple devices
(the comment says DBGMD/LCDC0/FSIA MUX).

I guess I could use a "gpio-hog" subnode in DT instead, but then we're already
implementing the conversion to DT ;-)



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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