[PATCH] pinctrl: Add generic pinctrl-simple driver that supports omap2+ padconf

[Linus Walleij]

On Mon, May 14, 2012 at 8:38 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 05/12/2012 05:49 PM, Linus Walleij wrote:
>>
>> We have some pinctrl drivers implementing gpiolib too already,
>> and it's unavoidable I think, as some recent discussion about
>> matcing struct gpio_chip and pinctrl GPIO ranges shows.
>
> I strongly believe we should only do this when the exact same HW module
> is both pinctrl and GPIO.

Yep so this is what I have done for pinctrl-nomadik.c

> When there are separate HW modules, we should have separate drivers. The
> fact that the two drivers need to co-ordinate with each-other isn't a
> good argument to make them one driver.

So this matches the pinctrl-u300.c/pinctrl-coh901.c design pattern.

>> Maybe "-simple" isn't such a good name for this thing. Noone thinks
>> any kind of pin control is simple in any sense of the word anyway :-D
>>
>> Tony, would pinctrl-dt-only.c be a better name perhaps?
>
> That might be OK for the filename, but it doesn't seem like a useful
> change for the DT compatible value.

Oh I didn't think of these. Hm from a generic world running Windows
Mobile etc I take it that this is seen as simple mappings then?

Yours,
Linus Walleij