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-rw-r--r--drivers/usb/host/xhci-ring.c5
-rw-r--r--drivers/usb/host/xhci.h3
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 51c5109..f17e5c8 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -4073,6 +4073,7 @@ static int queue_set_tr_deq(struct xhci_hcd *xhci, int slot_id,
u32 trb_slot_id = SLOT_ID_FOR_TRB(slot_id);
u32 trb_ep_index = EP_ID_FOR_TRB(ep_index);
u32 trb_stream_id = STREAM_ID_FOR_TRB(stream_id);
+ u32 trb_sct = 0;
u32 type = TRB_TYPE(TRB_SET_DEQ);
struct xhci_virt_ep *ep;
@@ -4091,7 +4092,9 @@ static int queue_set_tr_deq(struct xhci_hcd *xhci, int slot_id,
}
ep->queued_deq_seg = deq_seg;
ep->queued_deq_ptr = deq_ptr;
- return queue_command(xhci, lower_32_bits(addr) | cycle_state,
+ if (stream_id)
+ trb_sct = SCT_FOR_TRB(SCT_PRI_TR);
+ return queue_command(xhci, lower_32_bits(addr) | trb_sct | cycle_state,
upper_32_bits(addr), trb_stream_id,
trb_slot_id | trb_ep_index | type, false);
}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index a6aa98f..2c77bf7 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1118,9 +1118,10 @@ enum xhci_setup_dev {
#define TRB_TO_SUSPEND_PORT(p) (((p) & (1 << 23)) >> 23)
#define LAST_EP_INDEX 30
-/* Set TR Dequeue Pointer command TRB fields */
+/* Set TR Dequeue Pointer command TRB fields, 6.4.3.9 */
#define TRB_TO_STREAM_ID(p) ((((p) & (0xffff << 16)) >> 16))
#define STREAM_ID_FOR_TRB(p) ((((p)) & 0xffff) << 16)
+#define SCT_FOR_TRB(p) (((p) << 1) & 0x7)
/* Port Status Change Event TRB fields */