ctrl_set
ccb->send_ctrl = ctrl_set(l2desc_sz, nr_desc-1, nr_desc-1);
ccb->recv_ctrl = ctrl_set(l2desc_sz, nr_desc-1, nr_desc-1);
u32 ctrl_set, u32 ctrl_clr)
ret = tsp->ops->set_control(tsp->sci, tsp->proc_id, ctrl_set, ctrl_clr);
writel(CTRL_ON | CTRL_SIDL, &pic32s->regs->ctrl_set);
u32 ctrl_set;
u32 ctrl_set, u32 ctrl_clr);