FP_PM_PORT_DOWN
if (port->fp_pm_level == FP_PM_PORT_DOWN) {
ASSERT(port->fp_pm_level == FP_PM_PORT_DOWN);
FP_PM_PORT_DOWN);
ASSERT(port->fp_pm_level == FP_PM_PORT_DOWN);
port->fp_pm_level = FP_PM_PORT_DOWN;
case FP_PM_PORT_DOWN:
port->fp_pm_level = FP_PM_PORT_DOWN;
port->fp_pm_level = FP_PM_PORT_DOWN;