CTL_INTF_MASTER
DPU_REG_WRITE(c, CTL_INTF_MASTER, BIT(cfg->intf_master - INTF_0));
intf_master = DPU_REG_READ(c, CTL_INTF_MASTER);
DPU_REG_WRITE(c, CTL_INTF_MASTER, 0);