On Tue, Mar 6, 2012 at 1:22 AM, Stephen Warren <swarren@xxxxxxxxxx> wrote: > Per recent updates to Documentation/gpio.txt, gpiolib drivers should > inform pinctrl when a GPIO is requested. pinctrl then marks that pin as > in-use for that GPIO function. > > When an SoC muxes pins in a group, it's quite possible for the group to > contain e.g. 6 pins, but only 4 of them actually be needed by the HW > module that's mux'd to them. In this case, the other 2 pins could be > used as GPIOs. However, pinctrl marks all the pins within the group as > in-use by the selected mux function. To allow the expected gpiolib > interaction, separate the concepts of pin ownership into two parts: One > for the mux function and one for GPIO usage. Finally, allow those two > ownerships to exist in parallel. > > Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx> Good, and 100% in accordance with earlier discussions. Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Thanks, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
