media: atomisp: use clamp() in compute_coring()

When it needs to get a value within a certain interval, using clamp()
makes the code easier to understand than min(max()).

Signed-off-by: Li Zetao <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

Author: Li Zetao

drivers/staging/media/atomisp/pci/isp/kernels/xnr/xnr_3.0/ia_css_xnr3.host.c

@@ -108,7 +108,7 @@ compute_coring(int coring)
 	 * factor. Clip to [0, isp_scale-1).
 	 */
 	isp_coring = ((coring * isp_scale) + offset) / host_scale;
-	return min(max(isp_coring, 0), isp_scale - 1);
+	return clamp(isp_coring, 0, isp_scale - 1);
 }
 
 /*
@@ -168,15 +168,15 @@ ia_css_xnr3_encode(
 	to->alpha.y0 = alpha_y0;
 	to->alpha.u0 = alpha_u0;
 	to->alpha.v0 = alpha_v0;
-	to->alpha.ydiff = min(max(alpha_ydiff, min_diff), max_diff);
-	to->alpha.udiff = min(max(alpha_udiff, min_diff), max_diff);
-	to->alpha.vdiff = min(max(alpha_vdiff, min_diff), max_diff);
+	to->alpha.ydiff = clamp(alpha_ydiff, min_diff, max_diff);
+	to->alpha.udiff = clamp(alpha_udiff, min_diff, max_diff);
+	to->alpha.vdiff = clamp(alpha_vdiff, min_diff, max_diff);
 
 	/* coring parameters are expressed in q1.NN format */
 	to->coring.u0 = coring_u0;
 	to->coring.v0 = coring_v0;
-	to->coring.udiff = min(max(coring_udiff, min_diff), max_diff);
-	to->coring.vdiff = min(max(coring_vdiff, min_diff), max_diff);
+	to->coring.udiff = clamp(coring_udiff, min_diff, max_diff);
+	to->coring.vdiff = clamp(coring_vdiff, min_diff, max_diff);
 
 	/* blending strength is expressed in q1.NN format */
 	to->blending.strength = blending;