BXT_POWER_CYCLE_DELAY_MASK
power_cycle_delay = REG_FIELD_GET(BXT_POWER_CYCLE_DELAY_MASK, pp_ctl);
intel_de_rmw(display, regs.pp_ctrl, BXT_POWER_CYCLE_DELAY_MASK,
REG_FIELD_PREP(BXT_POWER_CYCLE_DELAY_MASK,
(intel_de_read(display, regs.pp_ctrl) & BXT_POWER_CYCLE_DELAY_MASK));