diff options
Diffstat (limited to 'drivers/usb/host/ehci-hub.c')
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 3ee897c130f9..73f085bbeb10 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -299,6 +299,15 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) USB_PORT_STAT_HIGH_SPEED) fs_idle_delay = true; ehci_writel(ehci, t2, reg); + if ((t2 & PORT_WKDISC_E) + && (ehci_port_speed(ehci, t2) == + USB_PORT_STAT_HIGH_SPEED)) + /* + * If the high-speed device has not switched + * to full-speed idle before WKDISC_E has + * effected, there will be a WKDISC event. + */ + mdelay(4); changed = 1; } } |