Documentation for APM X-Gene SoC GPIO controller DTS binding. Signed-off-by: Feng Kan <fkan@xxxxxxx> Reviewed-by: Alexandre Courbot <acourbot@xxxxxxxxxx> --- .../devicetree/bindings/gpio/gpio-xgene.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-xgene.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-xgene.txt b/Documentation/devicetree/bindings/gpio/gpio-xgene.txt new file mode 100644 index 0000000..86dbb05 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-xgene.txt @@ -0,0 +1,22 @@ +APM X-Gene SoC GPIO controller bindings + +This is a gpio controller that is part of the flash controller. +This gpio controller controls a total of 48 gpios. + +Required properties: +- compatible: "apm,xgene-gpio" for X-Gene GPIO controller +- reg: Physical base address and size of the controller's registers +- #gpio-cells: Should be two. + - first cell is the pin number + - second cell is used to specify the gpio polarity: + 0 = active high + 1 = active low +- gpio-controller: Marks the device node as a GPIO controller. + +Example: + gpio0: gpio0@1701c000 { + compatible = "apm,xgene-gpio"; + reg = <0x0 0x1701c000 0x0 0x40>; + gpio-controller; + #gpio-cells = <2>; + }; -- 1.9.1 -- 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