DMA4_CSDP_DATA_TYPE
channel->reg_csdp = DMA4_CSDP_DATA_TYPE(0x2)
sc->sc_channel[ch].reg_csdp &= ~DMA4_CSDP_DATA_TYPE(0x3);
sc->sc_channel[ch].reg_csdp |= DMA4_CSDP_DATA_TYPE(type);