BXT_DSI_PLL_DO_ENABLE
mask = BXT_DSI_PLL_DO_ENABLE | BXT_DSI_PLL_LOCKED;
intel_de_rmw(display, BXT_DSI_PLL_ENABLE, BXT_DSI_PLL_DO_ENABLE, 0);
intel_de_rmw(display, BXT_DSI_PLL_ENABLE, 0, BXT_DSI_PLL_DO_ENABLE);