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| author |   Janusz Dziedzic <januszx.dziedzic@linux.intel.com> | 2016-11-09 11:01:32 +0100 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-11-18 13:54:14 +0200 |
| commit | ce3fc8b32994e16f69912c982823105aafead7a6 (patch) | |
| tree | e60c196fd3dc368704769ece6c5f3f900f3d45be /tools/perf/scripts/python | |
| parent | usb: dwc3: decrement queued_requests (diff) | |
| download | linux-dev-ce3fc8b32994e16f69912c982823105aafead7a6.tar.xz linux-dev-ce3fc8b32994e16f69912c982823105aafead7a6.zip | |
usb: dwc3: clean TRB if STARTTRANSFER fail
In case STARTTRANSFER will fail, clean TRB.
Seems HW in such case don't clean HWO bit.
So, without this cleanup prev_trb still have
HWO bit set.
In my case (without patch), after first START failed:
- dep->enqueue == 1
- dep->dequeue == 1
- prev_trb still have HWO set
- left_trb() == 0
No way to send more data.
Signed-off-by: Janusz Dziedzic <januszx.dziedzic@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions