diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2013-10-04 02:29:48 +0400 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2014-03-05 03:38:01 +0400 |
| commit | 95241dbdf8281ece1355b8673b882d6a182f3c7d (patch) | |
| tree | ae654d2b210bfa2cdf3c4af487619b31a760ee46 /drivers/usb/host/xhci-ring.c | |
| parent | c4bedb77ec4cb42f37cae4cbfddda8283161f7c8 (diff) | |
| download | linux-95241dbdf8281ece1355b8673b882d6a182f3c7d.tar.xz | |
xhci: Set SCT field for Set TR dequeue on streams
Nec XHCI controllers don't seem to care, but without this Intel XHCI
controllers reject Set TR dequeue commands with a COMP_TRB_ERR, leading
to the following warning:
WARN Set TR Deq Ptr cmd invalid because of stream ID configuration
And very shortly after this the system completely freezes.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 51c5109bbefc..f17e5c8c1cb3 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); } |