On Tue, Sep 16, 2014 at 1:52 PM, Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > Some drivers need to deal with only firmware representation of its > GPIOs. An example would be a GPIO button array driver where each button > is described as a separate firmware node in device tree. Typically these > child nodes do not have physical representation in the Linux device > model. > > In order to help device drivers to handle such firmware child nodes we > add dev[m]_node_get_named_gpiod() that takes a firmware node pointer as > parameter, finds the GPIO using whatever is the underlying firmware > method, and requests the GPIO properly. > > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> I have a hard time figuring out if this is what we want for common accessors between DT and ACPI. Can I get some input from Grant, Arnd, Mark, Darren...? Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
