dt-bindings: usb: exynos-usb: Add missing required VDD properties

Since commit bd8ce544ec35 ("usb: dwc3: exynos: Make provision for vdd
regulators") vdd33-supply and vdd10-supply are required so document them
in bindings.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index 9b4dbe3..78ebebb 100644 (file)
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -92,6 +92,8 @@ Required properties:
           parent's address space
  - clocks: Clock IDs array as required by the controller.
  - clock-names: names of clocks correseponding to IDs in the clock property
+ - vdd10-supply: 1.0V powr supply
+ - vdd33-supply: 3.0V/3.3V power supply
 
 Sub-nodes:
 The dwc3 core should be added as subnode to Exynos dwc3 glue.
@@ -107,6 +109,8 @@ Example:
                #address-cells = <1>;
                #size-cells = <1>;
                ranges;
+               vdd10-supply = <&ldo11_reg>;
+               vdd33-supply = <&ldo9_reg>;
 
                dwc3 {
                        compatible = "synopsys,dwc3";