DKL_PLL_DIV1
hw_state->mg_pll_div1 = intel_dkl_phy_read(display, DKL_PLL_DIV1(tc_port));
val = intel_dkl_phy_read(display, DKL_PLL_DIV1(tc_port));
intel_dkl_phy_write(display, DKL_PLL_DIV1(tc_port), val);