1 files changed, 23 insertions, 1 deletions

diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index 11510472ee00..e50419d08996 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1623,12 +1623,34 @@ static int pxa_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
         return 0;
 }
 
+/**
+ * pxa_udc_vbus_draw - Called by gadget driver after SET_CONFIGURATION completed
+ * @_gadget: usb gadget
+ * @mA: current drawn
+ *
+ * Context: !in_interrupt()
+ *
+ * Called after a configuration was chosen by a USB host, to inform how much
+ * current can be drawn by the device from VBus line.
+ *
+ * Returns 0 or -EOPNOTSUPP if no transceiver is handling the udc
+ */
+static int pxa_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
+{
+        struct pxa_udc *udc;
+
+        udc = to_gadget_udc(_gadget);
+        if (udc->transceiver)
+                return otg_set_power(udc->transceiver, mA);
+        return -EOPNOTSUPP;
+}
+
 static const struct usb_gadget_ops pxa_udc_ops = {
         .get_frame      = pxa_udc_get_frame,
         .wakeup         = pxa_udc_wakeup,
         .pullup         = pxa_udc_pullup,
         .vbus_session   = pxa_udc_vbus_session,
-        /* current versions must always be self-powered */
+        .vbus_draw      = pxa_udc_vbus_draw,
 };
 
 /**