Summary

The OCR path busy-waits 20 seconds then spins indefinitely on the RSR bit with no timeout; invoked from the reset holding mfi_io_lock in callout context - a firmware that never clears the bit parks the softclock thread forever with the lock held, permanently stalling all callouts system-wide. The neighboring reset sequencer bounds its waits, showing the omission is accidental. Bound-the-handshake fix.