EDMA_ERR_IRQ_TRANSIENT
edma_err_cause &= ~EDMA_ERR_IRQ_TRANSIENT;
~(EDMA_ERR_TRANS_IRQ_7 | EDMA_ERR_IRQ_TRANSIENT);
writelfl(~EDMA_ERR_IRQ_TRANSIENT, port_mmio + EDMA_ERR_IRQ_MASK);