On some boards, especially when vbus supply requires large current, and the charge pump on the PHY isn't enough, an external vbus power switch per port may be used. Add portN_vbus-supply property to usb-ehci bindings. As the number of ports depends on the ehci controller, and the port on which an external vbus supply depends on the platform, <portN> is used to make it generic.
Signed-off-by: Amelie Delaunay <amelie.delau...@st.com> --- Documentation/devicetree/bindings/usb/usb-ehci.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt index 3efde12..cd576db 100644 --- a/Documentation/devicetree/bindings/usb/usb-ehci.txt +++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt @@ -19,6 +19,7 @@ Optional properties: - phys : phandle + phy specifier pair - phy-names : "usb" - resets : phandle + reset specifier pair + - portN_vbus-supply : phandle of regulator supplying vbus for port N Example (Sequoia 440EPx): ehci@e0000300 { -- 2.7.4