I tried to suspend to mem with usb medium attached and I get below errors continuously:
usb usb1: clear tt 1 (9071) error -22
And while wakeup I get following errors continuously:
dwc2 f72c0000.usb: Waiting for Host Mode, Mode=Peripheral
And then the usb is not detected at all after wakeup. Even the usb if attached again does not detect unless board is reset.
I am using 4.4 kernel.