cs4281_clr4
cs4281_clr4(sc, CS4281PCI_DCR(ch->dma_chan), CS4281PCI_DCR_MSK);
cs4281_clr4(sc, CS4281PCI_EPPMC, CS4281PCI_EPPMC_FPDN);
cs4281_clr4(sc, CS4281PCI_SPMC, CS4281PCI_SPMC_RSTN);
cs4281_clr4(sc,