diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index c21df228a9c0..6c389eb8d7cd 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -990,6 +990,8 @@ static void vop_initial(struct drm_crtc *crtc)
 
 	VOP_CTRL_SET(vop, global_regdone_en, 1);
 	VOP_CTRL_SET(vop, dsp_blank, 0);
+	VOP_CTRL_SET(vop, axi_outstanding_max_num, 30);
+	VOP_CTRL_SET(vop, axi_max_outstanding_en, 1);
 
 	/*
 	 * restore the lut table.
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
index ceb8467a41b3..e483186e01c4 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -94,6 +94,8 @@ struct vop_csc {
 struct vop_ctrl {
 	struct vop_reg version;
 	struct vop_reg standby;
+	struct vop_reg axi_outstanding_max_num;
+	struct vop_reg axi_max_outstanding_en;
 	struct vop_reg htotal_pw;
 	struct vop_reg hact_st_end;
 	struct vop_reg vtotal_pw;
diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index c1cd1925ccd1..39426b83b1e2 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -171,6 +171,8 @@ static const struct vop_win_phy *rk3288_area_data[] = {
 static const struct vop_ctrl rk3288_ctrl_data = {
 	.version = VOP_REG(RK3288_VERSION_INFO, 0xffff, 16),
 	.standby = VOP_REG(RK3288_SYS_CTRL, 0x1, 22),
+	.axi_outstanding_max_num = VOP_REG(RK3288_SYS_CTRL1, 0x1f, 13),
+	.axi_max_outstanding_en = VOP_REG(RK3288_SYS_CTRL1, 0x1, 12),
 	.htotal_pw = VOP_REG(RK3288_DSP_HTOTAL_HS_END, 0x1fff1fff, 0),
 	.hact_st_end = VOP_REG(RK3288_DSP_HACT_ST_END, 0x1fff1fff, 0),
 	.vtotal_pw = VOP_REG(RK3288_DSP_VTOTAL_VS_END, 0x1fff1fff, 0),
@@ -601,6 +603,8 @@ static const struct vop_data rk322x_vop = {
 
 static const struct vop_ctrl rk3328_ctrl_data = {
 	.standby = VOP_REG(RK3328_SYS_CTRL, 0x1, 22),
+	.axi_outstanding_max_num = VOP_REG(RK3328_SYS_CTRL1, 0x1f, 13),
+	.axi_max_outstanding_en = VOP_REG(RK3328_SYS_CTRL1, 0x1, 12),
 	.auto_gate_en = VOP_REG(RK3328_SYS_CTRL, 0x1, 23),
 	.htotal_pw = VOP_REG(RK3328_DSP_HTOTAL_HS_END, 0x1fff1fff, 0),
 	.hact_st_end = VOP_REG(RK3328_DSP_HACT_ST_END, 0x1fff1fff, 0),