diff options
| -rw-r--r-- | drivers/usb/core/hub.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index d0bbbd76ba8e..df3aa0b69188 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -146,8 +146,10 @@ static inline unsigned hub_power_on_good_delay(struct usb_hub *hub) { unsigned delay = hub->descriptor->bPwrOn2PwrGood * 2; - /* Wait at least 100 msec for power to become stable */ - return max(delay, 100U); + if (!hub->hdev->parent) /* root hub */ + return delay; + else /* Wait at least 100 msec for power to become stable */ + return max(delay, 100U); } static inline int hub_port_debounce_be_connected(struct usb_hub *hub, |