diff options
author | Bo He <bo.he@intel.com> | 2019-01-14 09:48:32 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-05 17:57:04 +0100 |
commit | 92efac6f4e3f998a476ccd6b61dd7111ba3d0432 (patch) | |
tree | 68c42ba10e673407422fc1aa17b973b8bfe59442 /drivers/usb/dwc3/gadget.c | |
parent | 26e284fab2b42b96524794c04d0d7f099943bb79 (diff) |
usb: dwc3: gadget: synchronize_irq dwc irq in suspend
[ Upstream commit 01c10880d24291a96a4ab0da773e3c5ce4d12da8 ]
We see dwc3 endpoint stopped by unwanted irq during
suspend resume test, which is caused dwc3 ep can't be started
with error "No Resource".
Here, add synchronize_irq before suspend to sync the
pending IRQ handlers complete.
Signed-off-by: Bo He <bo.he@intel.com>
Signed-off-by: Yu Wang <yu.y.wang@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
-rw-r--r-- | drivers/usb/dwc3/gadget.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index ed6b9bfe3759..c481df18a5a1 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3096,6 +3096,8 @@ int dwc3_gadget_suspend(struct dwc3 *dwc) dwc3_disconnect_gadget(dwc); __dwc3_gadget_stop(dwc); + synchronize_irq(dwc->irq_gadget); + return 0; } |