On Wed, Oct 05, 2022, Ferry Toth wrote: > Hi, > > Thanks! > > Does the failure only happen the first time host is initialized? Or can > it recover after switching to device then back to host mode? > > I can switch back and forth and device mode works each time, host mode remains > dead. Ok. > > Probably the failure happens if some step(s) in dwc3_core_init() hasn't > completed. > > tusb1210 is a phy driver right? The issue is probably because we didn't > initialize the phy yet. So, I suspect placing dwc3_get_extcon() after > initializing the phy will probably solve the dependency problem. > > You can try something for yourself or I can provide something to test > later if you don't mind (maybe next week if it's ok). > > Yes, the code move I mentioned above "moves dwc3_get_extcon() until after > dwc3_core_init() but just before dwc3_core_init_mode(). AFAIU initially > dwc3_get_extcon() was called from within dwc3_core_init_mode() but only for > case USB_DR_MODE_OTG. So with this change order of events is more or less > unchanged" solves the issue. > I saw the experiment you did from the link you provided. We want to also confirm exactly which step in dwc3_core_init() was needed. Thanks, Thinh
