summaryrefslogtreecommitdiff
path: root/drivers/usb/core/hub.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/core/hub.c')
-rw-r--r--drivers/usb/core/hub.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 54cd8ef795ec..2b6565c06c23 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1223,6 +1223,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
#ifdef CONFIG_PM
udev->reset_resume = 1;
#endif
+ /* Don't set the change_bits when the device
+ * was powered off.
+ */
+ if (test_bit(port1, hub->power_bits))
+ set_bit(port1, hub->change_bits);
} else {
/* The power session is gone; tell hub_wq */
@@ -2723,13 +2728,11 @@ static bool use_new_scheme(struct usb_device *udev, int retry,
{
int old_scheme_first_port =
port_dev->quirks & USB_PORT_QUIRK_OLD_SCHEME;
- int quick_enumeration = (udev->speed == USB_SPEED_HIGH);
if (udev->speed >= USB_SPEED_SUPER)
return false;
- return USE_NEW_SCHEME(retry, old_scheme_first_port || old_scheme_first
- || quick_enumeration);
+ return USE_NEW_SCHEME(retry, old_scheme_first_port || old_scheme_first);
}
/* Is a USB 3.0 port in the Inactive or Compliance Mode state?
@@ -3088,6 +3091,15 @@ static int check_port_resume_type(struct usb_device *udev,
if (portchange & USB_PORT_STAT_C_ENABLE)
usb_clear_port_feature(hub->hdev, port1,
USB_PORT_FEAT_C_ENABLE);
+
+ /*
+ * Whatever made this reset-resume necessary may have
+ * turned on the port1 bit in hub->change_bits. But after
+ * a successful reset-resume we want the bit to be clear;
+ * if it was on it would indicate that something happened
+ * following the reset-resume.
+ */
+ clear_bit(port1, hub->change_bits);
}
return status;