Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / phy / qcom-dwc3-usb-phy.txt
diff --git a/kernel/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt b/kernel/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
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+Qualcomm DWC3 HS AND SS PHY CONTROLLER
+--------------------------------------
+
+DWC3 PHY nodes are defined to describe on-chip Synopsis Physical layer
+controllers.  Each DWC3 PHY controller should have its own node.
+
+Required properties:
+- compatible: should contain one of the following:
+       - "qcom,dwc3-hs-usb-phy" for High Speed Synopsis PHY controller
+       - "qcom,dwc3-ss-usb-phy" for Super Speed Synopsis PHY controller
+- reg: offset and length of the DWC3 PHY controller register set
+- #phy-cells: must be zero
+- clocks: a list of phandles and clock-specifier pairs, one for each entry in
+  clock-names.
+- clock-names: Should contain "ref" for the PHY reference clock
+
+Optional clocks:
+  "xo"         External reference clock
+
+Example:
+               phy@100f8800 {
+                       compatible = "qcom,dwc3-hs-usb-phy";
+                       reg = <0x100f8800 0x30>;
+                       clocks = <&gcc USB30_0_UTMI_CLK>;
+                       clock-names = "ref";
+                       #phy-cells = <0>;
+
+                       status = "ok";
+               };
+
+               phy@100f8830 {
+                       compatible = "qcom,dwc3-ss-usb-phy";
+                       reg = <0x100f8830 0x30>;
+                       clocks = <&gcc USB30_0_MASTER_CLK>;
+                       clock-names = "ref";
+                       #phy-cells = <0>;
+
+                       status = "ok";
+               };