diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 3e80de7c7f5..27291f50265 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -60,11 +60,13 @@ static void ehci_handover_companion_ports(struct ehci_hcd *ehci) while (port--) { if (test_bit(port, &ehci->owned_ports)) { reg = &ehci->regs->port_status[port]; - status = ehci_readl(ehci, reg); + status = ehci_readl(ehci, reg) & ~PORT_RWC_BITS; /* Port already owned by companion? */ if (status & PORT_OWNER) clear_bit(port, &ehci->owned_ports); + else if (test_bit(port, &ehci->companion_ports)) + ehci_writel(ehci, status & ~PORT_PE, reg); else ehci_hub_control(hcd, SetPortFeature, USB_PORT_FEAT_RESET, port + 1, |