Hi, Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> 于2019年10月23日周三 下午6:02写道： > > > Hi, > > (please don't top-post) > > alex zheng <tc0721@xxxxxxxxx> writes: > > Hi, all > > > > We found that this is a known issue of synopsys DWC3 USB controller, > > when the PARKMODE_SS of DWC3 is enable, the controller may hang or do > > wrong TRB schedule in some heavy load conditions. > > > > Setting DISABLE_PARKMODE_SS to 1 can work around this bug. > > Is this something that affects some versions but not others? If the > case, we should teach the driver to handle this based on a revision > check. It seems that all DWC3 USB3.0 controller witch have parkmode_ss may run into this issue, but we did not do a further test, and I find that there is already a fix patch in maillist yesterday, see title: usb: "dwc3: Update entries for disabling SS instances in park mode" > > cheers > > -- > balbi
