DPI_ENABLE
if (!(tmp & DPI_ENABLE))
if (intel_de_read(display, BXT_MIPI_PORT_CTRL(port)) & DPI_ENABLE)
intel_de_write(display, port_ctrl, temp | DPI_ENABLE);
intel_de_rmw(display, port_ctrl, DPI_ENABLE, 0);
bool enabled = intel_de_read(display, port_ctrl) & DPI_ENABLE;