div_fixed16
fp_w_ratio = div_fixed16(src_w, dst_w);
fp_h_ratio = div_fixed16(src_h, dst_h);
fp_w_ratio = div_fixed16(src_w, dst_w);
fp_h_ratio = div_fixed16(src_h, dst_h);
uint_fixed_16_16_t fp_9_div_8 = div_fixed16(9, 8);
ret = div_fixed16(wm_intermediate_val, 1000 * dbuf_block_size);
linetime_us = div_fixed16(crtc_htotal * 1000, pixel_rate);
wp->plane_blocks_per_line = div_fixed16(interm_pbpl,