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usb: dwc3: gadget: stop gadget even if fail to stop ctrl

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In dwc3_gadget_suspend(), if fail to stop DWC3 controller,
and return without do __dwc3_gadget_stop(), it will not
disable ep0 and ep1, and the dep->flags stays in the state
DWC3_EP_ENABLED, this will casue gadget connect failed.

A typical case is:
DWC3 works as DRD mode, fist plug in OTG HOST cable and
works as HOST mode, then plug out HOST calbe, after this
operation, it will do runtime supend -> dwc3_gadget_suspend()
-> dwc3_gadget_run_stop() fail -> return without stop gadget,
and then plug in OTG device cable, fail to connect with PC.

Change-Id: I79daff8a9e8175cd13ac57e2abc63d4e5f694b1c
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
This commit is contained in:
Wu Liang feng
2016-08-25 20:08:00 +08:00
committed by Huang, Tao
parent c1dea417c7
commit 05b4496284
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/dwc3/gadget.c
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@@ -3084,7 +3084,7 @@ int dwc3_gadget_suspend(struct dwc3 *dwc)
ret = dwc3_gadget_run_stop(dwc, false, false);
if (ret < 0)
return ret;
dev_err(dwc->dev, "dwc3 gadget stop timeout\n");
dwc3_disconnect_gadget(dwc);
__dwc3_gadget_stop(dwc);