phy: core: Add phy-supply to DT binding documentation

phy-supply is a phandle to the regulator that provides power to the
PHY. This regulator is managed during the PHY power on/off sequence
by the phy core driver.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

diff --git a/Documentation/devicetree/bindings/phy/phy-bindings.txt b/Documentation/devicetree/bindings/phy/phy-bindings.txt
index 8ae844f..2aa1840 100644 (file)
--- a/Documentation/devicetree/bindings/phy/phy-bindings.txt
+++ b/Documentation/devicetree/bindings/phy/phy-bindings.txt
@@ -10,6 +10,10 @@ Required Properties:
                provider can use the values in cells to find the appropriate
                PHY.
 
+Optional Properties:
+phy-supply:    Phandle to a regulator that provides power to the PHY. This
+               regulator will be managed during the PHY power on/off sequence.
+
 For example:
 
 phys: phy {