On Wed, Jan 25, 2023 at 07:08:10PM +0000, Thinh Nguyen wrote: <snip> > > + /* > > + * If the controller is not host-only, then it must be a > > + * single port controller. > > + */ Thinh, is this a correct assumption? Is it possible for the IP to be synthesized to support both dual-role and multiple ports? We know that when operating in device mode only the first port can be used but the additional ports would be usable when in host. Thanks, Jack > > + temp = readl(regs + DWC3_GHWPARAMS0); > > + hw_mode = DWC3_GHWPARAMS0_MODE(temp); > > + if (hw_mode != DWC3_GHWPARAMS0_MODE_HOST) { > > + dwc->num_ports = 1; > > + dwc->num_ss_ports = 1; > > + return 0; > > + } > > This check should be done before we get into this function.