| Date | Tue, 23 Sep 2014 17:25:50 +0200 | Subject | Re: [RFC PATCH v2 07/16] gpio: Add support for unified device properties interface | From | Linus Walleij <> |
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On Tue, Sep 16, 2014 at 1:52 PM, Mika Westerberg <mika.westerberg@linux.intel.com> 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@linux.intel.com>
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
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