[PATCH 2/2] pinctrl: add a generic control interface
broonie at opensource.wolfsonmicro.com
Thu Oct 20 14:18:27 UTC 2011
On Thu, Oct 20, 2011 at 04:04:47PM +0200, Linus Walleij wrote:
> I think (and of course this may be completely wrong, but it's my
> working hypthesis) that the things that software wants to do to
> pins are:
The other question is if it's worth bouncing through too much of an
abstraction layer when both ends of the API are fixed.
> Yet again, can I have some examples of what
> PIN_CONFIG_USER may *actually* be, which would be
> absolutely impossible to express in some neutral way, and
> ridiculous to have in the generic enum?
One fun example is that we have some devices with pins which have
runtime controllable voltage domains, there's no obvious SI unit mapping
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