PMC_SKIP_BRINGUP
&= ~PMC_SKIP_BRINGUP;
&= ~PMC_SKIP_BRINGUP;
DEVI(kept_dip)->devi_pm_flags |= PMC_SKIP_BRINGUP;
~PMC_SKIP_BRINGUP;
#define PM_SKBU(dip) (DEVI(dip)->devi_pm_flags & PMC_SKIP_BRINGUP)