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usb: dwc3: gadget: remove duplicated missed isoc handling 

Now, this part of the code is duplicated and brings no extra value to
the driver. Let's remove it.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2018-03-29 13:07:16 +03:00
parent 6d8a019614
commit 4d588a145b
4 changed files with 3 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/driver-api/usb/dwc3.rst
View File

@ -676,7 +676,6 @@ operations, both of which can be traced. Format is::
__entry->flags & DWC3_EP_WEDGE ? 'W' : 'w',
__entry->flags & DWC3_EP_TRANSFER_STARTED ? 'B' : 'b',
__entry->flags & DWC3_EP_PENDING_REQUEST ? 'P' : 'p',
__entry->flags & DWC3_EP_MISSED_ISOC ? 'M' : 'm',
__entry->flags & DWC3_EP_END_TRANSFER_PENDING ? 'E' : 'e',
__entry->direction ? '<' : '>'
)

1
drivers/usb/dwc3/core.h
View File

@ -664,7 +664,6 @@ struct dwc3_ep {
#define DWC3_EP_WEDGE BIT(2)
#define DWC3_EP_TRANSFER_STARTED BIT(3)
#define DWC3_EP_PENDING_REQUEST BIT(5)
#define DWC3_EP_MISSED_ISOC BIT(6)
#define DWC3_EP_END_TRANSFER_PENDING BIT(7)
/* This last one is specific to EP0 */

34
drivers/usb/dwc3/gadget.c
View File

@ -1333,8 +1333,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
return 0;
}
if ((dep->flags & DWC3_EP_TRANSFER_STARTED) &&
!(dep->flags & DWC3_EP_MISSED_ISOC))
if (dep->flags & DWC3_EP_TRANSFER_STARTED)
goto out;
return 0;
@ -2229,7 +2228,6 @@ static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3_ep *dep,
{
unsigned int count;
unsigned int s_pkt = 0;
unsigned int trb_status;
dwc3_ep_inc_deq(dep);
@ -2264,35 +2262,7 @@ static int dwc3_gadget_ep_reclaim_completed_trb(struct dwc3_ep *dep,
if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN)
return 1;
if (dep->direction) {
if (count) {
trb_status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (trb_status == DWC3_TRBSTS_MISSED_ISOC) {
/*
* If missed isoc occurred and there is
* no request queued then issue END
* TRANSFER, so that core generates
* next xfernotready and we will issue
* a fresh START TRANSFER.
* If there are still queued request
* then wait, do not issue either END
* or UPDATE TRANSFER, just attach next
* request in pending_list during
* giveback.If any future queued request
* is successfully transferred then we
* will issue UPDATE TRANSFER for all
* request in the pending_list.
*/
dep->flags |= DWC3_EP_MISSED_ISOC;
} else {
dev_err(dep->dwc->dev, "incomplete IN transfer %s\n",
dep->name);
status = -ECONNRESET;
}
} else {
dep->flags &= ~DWC3_EP_MISSED_ISOC;
}
} else {
if (!dep->direction) {
if (count && (event->status & DEPEVT_STATUS_SHORT))
s_pkt = 1;
}

3
drivers/usb/dwc3/trace.h
View File

@ -303,7 +303,7 @@ DECLARE_EVENT_CLASS(dwc3_log_ep,
__entry->trb_enqueue = dep->trb_enqueue;
__entry->trb_dequeue = dep->trb_dequeue;
),
TP_printk("%s: mps %d/%d streams %d burst %d ring %d/%d flags %c:%c%c%c%c%c:%c:%c",
TP_printk("%s: mps %d/%d streams %d burst %d ring %d/%d flags %c:%c%c%c%c:%c:%c",
__get_str(name), __entry->maxpacket,
__entry->maxpacket_limit, __entry->max_streams,
__entry->maxburst, __entry->trb_enqueue,
@ -313,7 +313,6 @@ DECLARE_EVENT_CLASS(dwc3_log_ep,
__entry->flags & DWC3_EP_WEDGE ? 'W' : 'w',
__entry->flags & DWC3_EP_TRANSFER_STARTED ? 'B' : 'b',
__entry->flags & DWC3_EP_PENDING_REQUEST ? 'P' : 'p',
__entry->flags & DWC3_EP_MISSED_ISOC ? 'M' : 'm',
__entry->flags & DWC3_EP_END_TRANSFER_PENDING ? 'E' : 'e',
__entry->direction ? '<' : '>'
)