check_phy_reg
ret = check_phy_reg(display, phy, ICL_PORT_COMP_DW1(phy),
ret &= check_phy_reg(display, phy, ICL_PORT_COMP_DW9(phy),
ret &= check_phy_reg(display, phy, ICL_PORT_COMP_DW10(phy),
ret &= check_phy_reg(display, phy, ICL_PORT_TX_DW8_LN(0, phy),
ret &= check_phy_reg(display, phy, ICL_PORT_PCS_DW1_LN(0, phy),
ret &= check_phy_reg(display, phy, ICL_PORT_COMP_DW8(phy),
ret &= check_phy_reg(display, phy, ICL_PHY_MISC(phy),
ret &= check_phy_reg(display, phy, ICL_PORT_CL_DW5(phy),