On Mon, Dec 17, 2018 at 03:36:51PM +0000, Jan Kotas wrote: > This patch adds a DT binding documentation for > Cadence GPIO controller. > > Signed-off-by: Jan Kotas <jank@xxxxxxxxxxx> > --- > .../devicetree/bindings/gpio/cdns,gpio.txt | 44 ++++++++++++++++++++++ > 1 file changed, 44 insertions(+) > create mode 100644 Documentation/devicetree/bindings/gpio/cdns,gpio.txt > > diff --git a/Documentation/devicetree/bindings/gpio/cdns,gpio.txt b/Documentation/devicetree/bindings/gpio/cdns,gpio.txt > new file mode 100644 > index 000000000..c87a47827 > --- /dev/null > +++ b/Documentation/devicetree/bindings/gpio/cdns,gpio.txt > @@ -0,0 +1,44 @@ > +Cadence GPIO controller bindings > + > +Required properties: > +- compatible: should be "cdns,gpio-r1p02". > +- reg: the register base address and size. > +- #gpio-cells: should be 2. > + * first cell is the GPIO number. > + * second cell specifies the GPIO flags, as defined in > + <dt-bindings/gpio/gpio.h>. Only the GPIO_ACTIVE_HIGH > + and GPIO_ACTIVE_LOW flags are supported. > +- gpio-controller: marks the device as a GPIO controller. > +- clocks: should contain one entry referencing the peripheral clock driving > + the GPIO controller. > + > +Optional properties: > +- ngpios: integer number of gpio lines supported by this controller, up to 32. > +- interrupt-parent: phandle of the parent interrupt controller. Don't document interrupt-parent as it is implied and could be in a parent. Otherwise, Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Rob
