3.2.59-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Hans de Goede <hdegoede@xxxxxxxxxx>
commit c4bedb77ec4cb42f37cae4cbfddda8283161f7c8 upstream.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-ring.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -570,9 +570,9 @@ void xhci_find_new_dequeue_state(struct
struct xhci_dequeue_state *state)
{
struct xhci_virt_device *dev = xhci->devs[slot_id];
+ struct xhci_virt_ep *ep = &dev->eps[ep_index];
struct xhci_ring *ep_ring;
struct xhci_generic_trb *trb;
- struct xhci_ep_ctx *ep_ctx;
dma_addr_t addr;
ep_ring = xhci_triad_to_transfer_ring(xhci, slot_id,
@@ -595,8 +595,16 @@ void xhci_find_new_dequeue_state(struct
/* Dig out the cycle state saved by the xHC during the stop ep cmd */
xhci_dbg(xhci, "Finding endpoint context\n");
- ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index);
- state->new_cycle_state = 0x1 & le64_to_cpu(ep_ctx->deq);
+ /* 4.6.9 the css flag is written to the stream context for streams */
+ if (ep->ep_state & EP_HAS_STREAMS) {
+ struct xhci_stream_ctx *ctx =
+ &ep->stream_info->stream_ctx_array[stream_id];
+ state->new_cycle_state = 0x1 & le64_to_cpu(ctx->stream_ring);
+ } else {
+ struct xhci_ep_ctx *ep_ctx
+ = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index);
+ state->new_cycle_state = 0x1 & le64_to_cpu(ep_ctx->deq);
+ }
state->new_deq_ptr = cur_td->last_trb;
xhci_dbg(xhci, "Finding segment containing last TRB in TD.\n");
--
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