usb: dwc3: Soft reset phy on probe for host
When there's phy initialization, we need to initiate a soft-reset sequence. That's done through USBCMD.HCRST in the xHCI driver and its initialization, However, the dwc3 driver may modify core configs before the soft-reset. This may result in some connection instability. So, ensure the phy is ready before the controller updates the GCTL.PRTCAPDIR or other settings by issuing phy soft-reset. Note that some host-mode configurations may not expose device registers to initiate the controller soft-reset (via DCTL.CoreSftRst). So we reset through GUSB3PIPECTL and GUSB2PHYCFG instead. Cc: stable@vger.kernel.org Fixes: e835c0a4 ("usb: dwc3: don't reset device side if dwc3 was configured as host-only") Reported-by:Kenta Sato <tosainu.maple@gmail.com> Closes: https://lore.kernel.org/linux-usb/ZPUciRLUcjDywMVS@debian.me/ Signed-off-by: