Re: [PATCH v2 1/2] usb: dwc3: Add avoiding vbus glitch happen during xhci reset

2019-02-22 Thread Rob Herring
On Tue, 19 Feb 2019 07:23:14 +, Ran Wang wrote: > When DWC3 is set to host mode by programming register DWC3_GCTL, VBUS > (or its control signal) will turn on immediately on related Root Hub > ports. Then the VBUS will be de-asserted for a little while during xhci > reset (conducted by xhci

[PATCH v2 1/2] usb: dwc3: Add avoiding vbus glitch happen during xhci reset

2019-02-18 Thread Ran Wang
When DWC3 is set to host mode by programming register DWC3_GCTL, VBUS (or its control signal) will turn on immediately on related Root Hub ports. Then the VBUS will be de-asserted for a little while during xhci reset (conducted by xhci driver) for a little while and back to normal. This VBUS