Messages in this thread | | | Date | Sun, 16 Jun 2013 01:51:32 +0200 | Subject | Re: [RFC] pinctrl: generic: Add DT bindings | From | Linus Walleij <> |
| |
On Sun, Jun 16, 2013 at 1:35 AM, Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote: > On Saturday 15 June 2013 22:16:13 Heiko Stübner wrote: >> Am Samstag, 15. Juni 2013, 21:56:05 schrieb Linus Walleij:
>> Disable would the be either >> bias-disable; >> or >> bias-pull-up = <0>; >> >> A driver should probably handle both, as both are valid pinconf options or >> this. > > I feel a bit uneasy about that. Do we really need to support two different > ways to achieve the same result ?
In this specific case I think yes, but not on all options.
As dicussed earlier this was designed for systems where you could set the pull-up resistance, like
bias-pull-up = <600000>;
would give 600kOhm pull up.
In most existing systems that is silly, as they can't specify it, so they should be able to do just:
bias-pull-up;
as that is all they can do. If we have to cut one way, we should cut the former until such a system appears.
Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |