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>

1 files changed, 4 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/phy/phy-bindings.txt b/Documentation/devicetree/bindings/phy/phy-bindings.txt
index 8ae844fc0c60..2aa1840200ed 100644
--- 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 {