Tried extcon = <&u2phy> for 5.10 parity (2026-09-01) and reverted the same
day: bench/router panels self-source VBUS on the OTG port, so bvalid is
always high and extcon locks the role to peripheral, overriding debugfs mode
writes and orphaning a plugged USB NIC. Role stays manual (dwc3 debugfs mode,
router=host / client=gadget), with the switch sequence living in flare-edge
S26usbhost. See the usb2phy power-on issue for the remaining probe-time gap.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014L3eBF6wBXC55uJoZuUfS6
