LT_PHY_RATE_UPDATE
intel_lt_phy_p2p_write(encoder, owned_lane_mask, LT_PHY_RATE_UPDATE,
rate_update = intel_lt_phy_read(encoder, INTEL_LT_PHY_LANE0, LT_PHY_RATE_UPDATE);
intel_lt_phy_write(encoder, owned_lane_mask, LT_PHY_RATE_UPDATE,