diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index fb859b8673b3..ddbbfaf617e8 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -4497,13 +4497,16 @@ static void vop2_setup_alpha(struct vop2_video_port *vp,
 	/* Transfer pixel alpha value to next mix */
 	alpha_config.src_premulti_en = true;
 	alpha_config.dst_premulti_en = true;
-	alpha_config.src_pixel_alpha_en = true;
+	alpha_config.src_pixel_alpha_en = false;
 	alpha_config.src_glb_alpha_value = 0xff;
 	alpha_config.dst_glb_alpha_value = 0xff;
 	vop2_parse_alpha(&alpha_config, &alpha);
 
 	for (; i < hweight32(vp->win_mask); i++) {
 		offset = (mixer_id + i - 1) * 0x10;
+
+		vop2_writel(vop2, src_color_ctrl_offset + offset, alpha.src_alpha_ctrl.val);
+		vop2_writel(vop2, dst_color_ctrl_offset + offset, alpha.dst_color_ctrl.val);
 		vop2_writel(vop2, src_alpha_ctrl_offset + offset, alpha.src_alpha_ctrl.val);
 		vop2_writel(vop2, dst_alpha_ctrl_offset + offset, alpha.dst_alpha_ctrl.val);
 	}