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| author | Bo He <bo.he@intel.com> | 2019-01-14 09:48:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-05 17:57:59 +0100 |
| commit | 887a873e0ce2e5464a5d62f701900a07651e7a47 (patch) | |
| tree | 8a9c651c182287d20475a929e6ba11d55e7ed863 /drivers | |
| parent | 7330b4d0088a726876cb855810260e6ed785f123 (diff) | |
| download | linux-stable-887a873e0ce2e5464a5d62f701900a07651e7a47.tar.gz linux-stable-887a873e0ce2e5464a5d62f701900a07651e7a47.tar.bz2 linux-stable-887a873e0ce2e5464a5d62f701900a07651e7a47.zip | |
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')
| -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 2f96d2d0addd..5da078bf5f76 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3327,6 +3327,8 @@ int dwc3_gadget_suspend(struct dwc3 *dwc) dwc3_disconnect_gadget(dwc); __dwc3_gadget_stop(dwc); + synchronize_irq(dwc->irq_gadget); + return 0; } |