dispc_ovl_get_scale_coef
h_coef = dispc_ovl_get_scale_coef(fir_hinc, true);
v_coef = dispc_ovl_get_scale_coef(fir_vinc, five_taps);
const struct dispc_coef *dispc_ovl_get_scale_coef(int inc, int five_taps);
h_coef = dispc_ovl_get_scale_coef(fir_hinc, true);
v_coef = dispc_ovl_get_scale_coef(fir_vinc, five_taps);
const struct dispc_coef *dispc_ovl_get_scale_coef(int inc, int five_taps);