diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c
index 09792be46f91..80ff9005c104 100644
--- a/drivers/gpu/drm/solomon/ssd130x.c
+++ b/drivers/gpu/drm/solomon/ssd130x.c
@@ -1473,15 +1473,7 @@ static enum drm_mode_status ssd130x_crtc_mode_valid(struct drm_crtc *crtc,
 {
 	struct ssd130x_device *ssd130x = drm_to_ssd130x(crtc->dev);
 
-	if (mode->hdisplay != ssd130x->mode.hdisplay &&
-	    mode->vdisplay != ssd130x->mode.vdisplay)
-		return MODE_ONE_SIZE;
-	else if (mode->hdisplay != ssd130x->mode.hdisplay)
-		return MODE_ONE_WIDTH;
-	else if (mode->vdisplay != ssd130x->mode.vdisplay)
-		return MODE_ONE_HEIGHT;
-
-	return MODE_OK;
+	return drm_crtc_helper_mode_valid_fixed(crtc, mode, &ssd130x->mode);
 }
 
 static int ssd130x_crtc_atomic_check(struct drm_crtc *crtc,