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-rw-r--r--Documentation/devicetree/bindings/usb/renesas_usb3.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/renesas_usb3.txt b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
index e28025883b79..87a45e2f9b7f 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usb3.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
@@ -15,6 +15,10 @@ Required properties:
- interrupts: Interrupt specifier for the USB3.0 Peripheral
- clocks: clock phandle and specifier pair
+Optional properties:
+ - phys: phandle + phy specifier pair
+ - phy-names: must be "usb"
+
Example of R-Car H3 ES1.x:
usb3_peri0: usb@ee020000 {
compatible = "renesas,r8a7795-usb3-peri",