phy_link_rate
u32 link_rate, phy_link_rate;
phy_link_rate = 1620;
phy_link_rate = 2700;
phy_link_rate = 5400;
phy_link_rate = 8100;
phy_link_rate = 0;
dptx->phy_ops.dp.link_rate = phy_link_rate;