On Fri, Oct 10, 2014 at 10:28 PM, John Crispin <blogic@xxxxxxxxxxx> wrote: > Describe gpio-rt2880 binding. > > Signed-off-by: John Crispin <blogic@xxxxxxxxxxx> > Cc: linux-mips@xxxxxxxxxxxxxx > Cc: devicetree@xxxxxxxxxxxxxxx > Cc: linux-gpio@xxxxxxxxxxxxxxx > --- > .../devicetree/bindings/gpio/gpio-rt2880.txt | 40 ++++++++++++++++++++ > 1 file changed, 40 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpio/gpio-rt2880.txt > > diff --git a/Documentation/devicetree/bindings/gpio/gpio-rt2880.txt b/Documentation/devicetree/bindings/gpio/gpio-rt2880.txt > new file mode 100644 > index 0000000..b4acf02 > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpio/gpio-rt2880.txt > @@ -0,0 +1,40 @@ > +Ralink SoC GPIO controller bindings > + > +Required properties: > +- compatible: > + - "ralink,rt2880-gpio" for Ralink controllers > +- #gpio-cells : Should be two. > + - first cell is the pin number > + - second cell is used to specify optional parameters (unused) > +- gpio-controller : Marks the device node as a GPIO controller > +- reg : Physical base address and length of the controller's registers > +- interrupt-parent: phandle to the INTC device node > +- interrupts : Specify the INTC interrupt number > +- ralink,num-gpios : Specify the number of GPIOs > +- ralink,register-map : The register layout depends on the GPIO bank and actual > + SoC type. Register offsets need to be in this order. > + [ INT, EDGE, RENA, FENA, DATA, DIR, POL, SET, RESET, TOGGLE ] > + > +Optional properties: > +- ralink,gpio-base : Specify the GPIO chips base number NAK. This is a Linux-internal number. It is not OS-neutral. Yours, Linus Walleij
