summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt')
-rw-r--r--Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt39
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt b/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
new file mode 100644
index 000000000..86f2dbe07
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom-dwc3-usb-phy.txt
@@ -0,0 +1,39 @@
+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";
+ };