usb: dwc3: gadget: don't clear RUN/STOP when it's invalid to do so
When we change the USB function with configfs dynamically, we possibly met this situation: one core is doing the control transfer, another core is trying to unregister the USB gadget from userspace, we must wait for completing this control tranfer, or it will hang the controller to set the DEVCTRLHLT flag. [ felipe.balbi@linux.intel.com: several fixes to the patch - call complete() before starting following SETUP transfer - add a macro for ep0_in_setup's timeout - change commit subject slightly - break lines at 72 characters (git adds an 8-character tab) - avoid changes to dwc3_gadget_run_stop() ] Signed-off-by:Baolin Wang <baolin.wang@linaro.org> Signed-off-by:
Felipe Balbi <felipe.balbi@linux.intel.com>
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cf689230