Lines Matching refs:pdma
90 dev_err(chan->pdma->dma_dev.dev, in sf_pdma_prep_dma_memcpy()
257 dev_err(chan->pdma->dma_dev.dev, "NULL desc.\n"); in sf_pdma_xfer_desc()
398 static int sf_pdma_irq_init(struct platform_device *pdev, struct sf_pdma *pdma) in sf_pdma_irq_init() argument
403 for (i = 0; i < pdma->n_chans; i++) { in sf_pdma_irq_init()
404 chan = &pdma->chans[i]; in sf_pdma_irq_init()
448 static void sf_pdma_setup_chans(struct sf_pdma *pdma) in sf_pdma_setup_chans() argument
453 INIT_LIST_HEAD(&pdma->dma_dev.channels); in sf_pdma_setup_chans()
455 for (i = 0; i < pdma->n_chans; i++) { in sf_pdma_setup_chans()
456 chan = &pdma->chans[i]; in sf_pdma_setup_chans()
477 chan->pdma = pdma; in sf_pdma_setup_chans()
484 vchan_init(&chan->vchan, &pdma->dma_dev); in sf_pdma_setup_chans()
495 struct sf_pdma *pdma; in sf_pdma_probe() local
513 pdma = devm_kzalloc(&pdev->dev, struct_size(pdma, chans, n_chans), in sf_pdma_probe()
515 if (!pdma) in sf_pdma_probe()
518 pdma->n_chans = n_chans; in sf_pdma_probe()
520 pdma->membase = devm_platform_ioremap_resource(pdev, 0); in sf_pdma_probe()
521 if (IS_ERR(pdma->membase)) in sf_pdma_probe()
522 return PTR_ERR(pdma->membase); in sf_pdma_probe()
524 ret = sf_pdma_irq_init(pdev, pdma); in sf_pdma_probe()
528 sf_pdma_setup_chans(pdma); in sf_pdma_probe()
530 pdma->dma_dev.dev = &pdev->dev; in sf_pdma_probe()
533 dma_cap_set(DMA_MEMCPY, pdma->dma_dev.cap_mask); in sf_pdma_probe()
534 pdma->dma_dev.copy_align = 2; in sf_pdma_probe()
535 pdma->dma_dev.src_addr_widths = widths; in sf_pdma_probe()
536 pdma->dma_dev.dst_addr_widths = widths; in sf_pdma_probe()
537 pdma->dma_dev.directions = BIT(DMA_MEM_TO_MEM); in sf_pdma_probe()
538 pdma->dma_dev.residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR; in sf_pdma_probe()
539 pdma->dma_dev.descriptor_reuse = true; in sf_pdma_probe()
542 pdma->dma_dev.device_alloc_chan_resources = in sf_pdma_probe()
544 pdma->dma_dev.device_free_chan_resources = in sf_pdma_probe()
546 pdma->dma_dev.device_tx_status = sf_pdma_tx_status; in sf_pdma_probe()
547 pdma->dma_dev.device_prep_dma_memcpy = sf_pdma_prep_dma_memcpy; in sf_pdma_probe()
548 pdma->dma_dev.device_config = sf_pdma_slave_config; in sf_pdma_probe()
549 pdma->dma_dev.device_terminate_all = sf_pdma_terminate_all; in sf_pdma_probe()
550 pdma->dma_dev.device_issue_pending = sf_pdma_issue_pending; in sf_pdma_probe()
552 platform_set_drvdata(pdev, pdma); in sf_pdma_probe()
559 ret = dma_async_device_register(&pdma->dma_dev); in sf_pdma_probe()
571 struct sf_pdma *pdma = platform_get_drvdata(pdev); in sf_pdma_remove() local
575 for (i = 0; i < pdma->n_chans; i++) { in sf_pdma_remove()
576 ch = &pdma->chans[i]; in sf_pdma_remove()
586 dma_async_device_unregister(&pdma->dma_dev); in sf_pdma_remove()