RK3576_OVL_CTRL
ovl_ctrl = vop2_readl(vop2, RK3576_OVL_CTRL(vp->id));
vop2_writel(vop2, RK3576_OVL_CTRL(vp->id), ovl_ctrl);
.base = RK3576_OVL_CTRL(0),
.base = RK3576_OVL_CTRL(1),
.base = RK3576_OVL_CTRL(2),