Add dt-binding documentation for generic onboard USB HUB. Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> --- .../bindings/usb/generic-onboard-hub.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/generic-onboard-hub.txt diff --git a/Documentation/devicetree/bindings/usb/generic-onboard-hub.txt b/Documentation/devicetree/bindings/usb/generic-onboard-hub.txt new file mode 100644 index 0000000..ea92205 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/generic-onboard-hub.txt @@ -0,0 +1,28 @@ +Generic Onboard USB HUB + +Required properties: +- compatible: should be "generic-onboard-hub" + +Optional properties: +- clocks: the input clock for HUB. + +- clock-names: Should be "external_clk" + +- hub-reset-gpios: Should specify the GPIO for reset. + +- hub-reset-active-high: the active reset signal is high, if this property is + not set, the active reset signal is low. + +- hub-reset-duration-us: the duration for assert reset signal, the time unit + is microsecond. + +Example: + + usb_hub1 { + compatible = "generic-onboard-hub"; + clocks = <&clks IMX6QDL_CLK_CKO>; + clock-names = "external_clk"; + hub-reset-gpios = <&gpio7 12 0>; + hub-reset-active-high; + hub-reset-duration-us = <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