282 	struct fsl_edma_desc *fsl_desc;  in fsl_edma_free_desc()  local
285 	fsl_desc = to_fsl_edma_desc(vdesc);  in fsl_edma_free_desc()
286 	for (i = 0; i < fsl_desc->n_tcds; i++)  in fsl_edma_free_desc()
287 		dma_pool_free(fsl_desc->echan->tcd_pool, fsl_desc->tcd[i].vtcd,  in fsl_edma_free_desc()
288 			      fsl_desc->tcd[i].ptcd);  in fsl_edma_free_desc()
289 	kfree(fsl_desc);  in fsl_edma_free_desc()
505 	struct fsl_edma_desc *fsl_desc;  in fsl_edma_alloc_desc()  local
508 	fsl_desc = kzalloc(sizeof(*fsl_desc) + sizeof(struct fsl_edma_sw_tcd) * sg_len,  in fsl_edma_alloc_desc()
510 	if (!fsl_desc)  in fsl_edma_alloc_desc()
513 	fsl_desc->echan = fsl_chan;  in fsl_edma_alloc_desc()
514 	fsl_desc->n_tcds = sg_len;  in fsl_edma_alloc_desc()
516 		fsl_desc->tcd[i].vtcd = dma_pool_alloc(fsl_chan->tcd_pool,  in fsl_edma_alloc_desc()
517 					GFP_NOWAIT, &fsl_desc->tcd[i].ptcd);  in fsl_edma_alloc_desc()
518 		if (!fsl_desc->tcd[i].vtcd)  in fsl_edma_alloc_desc()
521 	return fsl_desc;  in fsl_edma_alloc_desc()
525 		dma_pool_free(fsl_chan->tcd_pool, fsl_desc->tcd[i].vtcd,  in fsl_edma_alloc_desc()
526 				fsl_desc->tcd[i].ptcd);  in fsl_edma_alloc_desc()
527 	kfree(fsl_desc);  in fsl_edma_alloc_desc()
537 	struct fsl_edma_desc *fsl_desc;  in fsl_edma_prep_dma_cyclic()  local
547 	fsl_desc = fsl_edma_alloc_desc(fsl_chan, sg_len);  in fsl_edma_prep_dma_cyclic()
548 	if (!fsl_desc)  in fsl_edma_prep_dma_cyclic()
550 	fsl_desc->iscyclic = true;  in fsl_edma_prep_dma_cyclic()
561 		last_sg = fsl_desc->tcd[(i + 1) % sg_len].ptcd;  in fsl_edma_prep_dma_cyclic()
575 		fsl_edma_fill_tcd(fsl_desc->tcd[i].vtcd, src_addr, dst_addr,  in fsl_edma_prep_dma_cyclic()
581 	return vchan_tx_prep(&fsl_chan->vchan, &fsl_desc->vdesc, flags);  in fsl_edma_prep_dma_cyclic()
590 	struct fsl_edma_desc *fsl_desc;  in fsl_edma_prep_slave_sg()  local
599 	fsl_desc = fsl_edma_alloc_desc(fsl_chan, sg_len);  in fsl_edma_prep_slave_sg()
600 	if (!fsl_desc)  in fsl_edma_prep_slave_sg()
602 	fsl_desc->iscyclic = false;  in fsl_edma_prep_slave_sg()
607 		last_sg = fsl_desc->tcd[(i + 1) % sg_len].ptcd;  in fsl_edma_prep_slave_sg()
623 			last_sg = fsl_desc->tcd[(i + 1)].ptcd;  in fsl_edma_prep_slave_sg()
624 			fsl_edma_fill_tcd(fsl_desc->tcd[i].vtcd, src_addr,  in fsl_edma_prep_slave_sg()
630 			fsl_edma_fill_tcd(fsl_desc->tcd[i].vtcd, src_addr,  in fsl_edma_prep_slave_sg()
637 	return vchan_tx_prep(&fsl_chan->vchan, &fsl_desc->vdesc, flags);  in fsl_edma_prep_slave_sg()