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.delaunay@xxxxxx>
---
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
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