DP_ADJUST_VOLTAGE_SWING_LANE0_MASK
link_status[idx] &= ~(DP_ADJUST_VOLTAGE_SWING_LANE0_MASK << s);
DP_ADJUST_VOLTAGE_SWING_LANE0_MASK;
(prev_lane_adjust & DP_ADJUST_VOLTAGE_SWING_LANE0_MASK) == 3) {