diff options
| author | Mayank Rana <mrana@codeaurora.org> | 2016-04-22 09:38:43 -0700 |
|---|---|---|
| committer | Kyle Yan <kyan@codeaurora.org> | 2016-04-29 14:35:35 -0700 |
| commit | 32592a96602297e8fddc752f0d10190017edaa7f (patch) | |
| tree | 4429635f0b546f4a01136e8871d6c1db3f2e465b /tools/perf/scripts/python/netdev-times.py | |
| parent | 606410ceac4a89d256f9378c8a18936ad7d1d420 (diff) | |
dwc3: Enable and disable core IRQ from dwc3 suspend/resume only
dwc3 core IRQ's depth (disable depth) is going out of sync due to
disabling it from dwc3's state machine when there are multiple
time USB composition switch is being performed before USB cable
connect. Linux IRQ framework doesn't decrement disable depth
count with enable_irq() when IRQ is enabled previously but it does
increment disable depth every time disable_irq() is called. This
results into dwc3 core IRQ to remain disable causing USB enumeration
failure as unknown device due to USB controller driver is not
seeing any of RESET and CONNECT DONE interrupt although USB controller
has posted those events into event buffer. Fix this issue by
making sure that USB core IRQ is disabled by default, and
enable/disable it from dwc3 suspend/resume only.
Change-Id: I665b15f6b5aca7d63e9ced29ec94b09524ae91be
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions