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-rw-r--r--drivers/usb/core/devices.c10
-rw-r--r--drivers/usb/core/hcd.c2
-rw-r--r--drivers/usb/core/hub.c12
3 files changed, 18 insertions, 6 deletions
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index d382291..0149c09 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -221,7 +221,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
break;
case USB_ENDPOINT_XFER_INT:
type = "Int.";
- if (speed == USB_SPEED_HIGH)
+ if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER)
interval = 1 << (desc->bInterval - 1);
else
interval = desc->bInterval;
@@ -229,7 +229,8 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
default: /* "can't happen" */
return start;
}
- interval *= (speed == USB_SPEED_HIGH) ? 125 : 1000;
+ interval *= (speed == USB_SPEED_HIGH ||
+ speed == USB_SPEED_SUPER) ? 125 : 1000;
if (interval % 1000)
unit = 'u';
else {
@@ -542,8 +543,9 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
if (level == 0) {
int max;
- /* high speed reserves 80%, full/low reserves 90% */
- if (usbdev->speed == USB_SPEED_HIGH)
+ /* super/high speed reserves 80%, full/low reserves 90% */
+ if (usbdev->speed == USB_SPEED_HIGH ||
+ usbdev->speed == USB_SPEED_SUPER)
max = 800;
else
max = FRAME_TIME_MAX_USECS_ALLOC;
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 8eed05d2..77a7fae 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1908,7 +1908,7 @@ void usb_free_streams(struct usb_interface *interface,
/* Streams only apply to bulk endpoints. */
for (i = 0; i < num_eps; i++)
- if (!usb_endpoint_xfer_bulk(&eps[i]->desc))
+ if (!eps[i] || !usb_endpoint_xfer_bulk(&eps[i]->desc))
return;
hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 8fb7549..93720bdc 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2285,7 +2285,17 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
}
/* see 7.1.7.6 */
- status = set_port_feature(hub->hdev, port1, USB_PORT_FEAT_SUSPEND);
+ /* Clear PORT_POWER if it's a USB3.0 device connected to USB 3.0
+ * external hub.
+ * FIXME: this is a temporary workaround to make the system able
+ * to suspend/resume.
+ */
+ if ((hub->hdev->parent != NULL) && hub_is_superspeed(hub->hdev))
+ status = clear_port_feature(hub->hdev, port1,
+ USB_PORT_FEAT_POWER);
+ else
+ status = set_port_feature(hub->hdev, port1,
+ USB_PORT_FEAT_SUSPEND);
if (status) {
dev_dbg(hub->intfdev, "can't suspend port %d, status %d\n",
port1, status);
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