fsp_set_slot
fsp_set_slot(dev, 0, false, 0, 0);
fsp_set_slot(dev, 1, fgrs == 2, abs_x, abs_y);
fsp_set_slot(dev, 1, false, 0, 0);
fsp_set_slot(dev, 0, fgrs != 0, abs_x, abs_y);
fsp_set_slot(dev, 0, fgrs > 0, abs_x, abs_y);
fsp_set_slot(dev, 1, false, 0, 0);