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Diffstat (limited to 'drivers/usb/core/hub.h')
| -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 657bacfbe3a7..064096e447ae 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -152,8 +152,10 @@ 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, |