total_w 566 drivers/video/fbdev/pxa168fb.c u32 total_w, total_h, refresh; total_w 588 drivers/video/fbdev/pxa168fb.c total_w = var->xres + var->left_margin + var->right_margin + total_w 594 drivers/video/fbdev/pxa168fb.c do_div(div_result, total_w * total_h * refresh);