Messages in this thread | | | Date | Sun, 11 Dec 2011 11:36:25 -0800 | From | Tony Lindgren <> | Subject | Re: [RFC 1/3] pinctrl: add a driver for NVIDIA Tegra |
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* Linus Walleij <linus.walleij@linaro.org> [111209 15:17]: > On Fri, Dec 9, 2011 at 6:07 PM, Tony Lindgren <tony@atomide.com> wrote: > > > - We currently have hard time supporting pin groups with pins > > coming from multiple pinmux driver instances > > Pin groups are per definiton per-controller inctance. That is a > given side effect of not having a global pin space. > > But you can create two groups of the same name on two > pin controllers so that e.g. pinctrl.0 and pinctrl.1 have > a group named "foo", then map both to a certain device > in the board pinmux map. > > You will have to request them individually however, like > with two hogs or two pinmux_get() calls specifying the > name of each map, else you will just get the first one. > > Not that I've tried it, but that's how it's supposed to work...
Yes a little bit of trickery is needed there, I'll look into it more as we already have two controller instances on omap4.
Regards,
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