1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index a2c56cdd2c3a..a59c61fea09f 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -56,6 +56,19 @@ static void ehci_handover_companion_ports(struct ehci_hcd *ehci)
         if (!ehci->owned_ports)
                 return;
 
+        /* Make sure the ports are powered */
+        port = HCS_N_PORTS(ehci->hcs_params);
+        while (port--) {
+                if (test_bit(port, &ehci->owned_ports)) {
+                        reg = &ehci->regs->port_status[port];
+                        status = ehci_readl(ehci, reg) & ~PORT_RWC_BITS;
+                        if (!(status & PORT_POWER)) {
+                                status |= PORT_POWER;
+                                ehci_writel(ehci, status, reg);
+                        }
+                }
+        }
+
         /* Give the connections some time to appear */
         msleep(20);