ANALOGIX_DP_PHY_TEST
writel(0x0, dp->reg_base + ANALOGIX_DP_PHY_TEST);
reg = readl(dp->reg_base + ANALOGIX_DP_PHY_TEST);
writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);
writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);