Commit 0282fefb authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Miquel Raynal
Browse files

mtd: rawnand: r852: use generic DMA API 



Use the generic DMA API instead of the legacy PCI DMA API.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 321e5404

drivers/mtd/nand/raw/r852.c

+13 −13
Original line number Diff line number Diff line
@@ -151,8 +151,9 @@ static void r852_dma_done(struct r852_device *dev, int error) 
	dev->dma_stage = 0;



	if (dev->phys_dma_addr && dev->phys_dma_addr != dev->phys_bounce_buffer)

		pci_unmap_single(dev->pci_dev, dev->phys_dma_addr, R852_DMA_LEN,

			dev->dma_dir ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE);

		dma_unmap_single(&dev->pci_dev->dev, dev->phys_dma_addr,

			R852_DMA_LEN,

			dev->dma_dir ? DMA_FROM_DEVICE : DMA_TO_DEVICE);

}



/*
@@ -197,11 +198,10 @@ static void r852_do_dma(struct r852_device *dev, uint8_t *buf, int do_read) 
		bounce = 1;



	if (!bounce) {

		dev->phys_dma_addr = pci_map_single(dev->pci_dev, (void *)buf,

		dev->phys_dma_addr = dma_map_single(&dev->pci_dev->dev, buf,

			R852_DMA_LEN,

			(do_read ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE));



		if (pci_dma_mapping_error(dev->pci_dev, dev->phys_dma_addr))

			do_read ? DMA_FROM_DEVICE : DMA_TO_DEVICE);

		if (dma_mapping_error(&dev->pci_dev->dev, dev->phys_dma_addr))

			bounce = 1;

	}
@@ -835,7 +835,7 @@ static int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) 


	pci_set_master(pci_dev);



	error = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));

	error = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));

	if (error)

		goto error2;
@@ -885,8 +885,8 @@ static int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) 
	dev->pci_dev = pci_dev;

	pci_set_drvdata(pci_dev, dev);



	dev->bounce_buffer = pci_alloc_consistent(pci_dev, R852_DMA_LEN,

		&dev->phys_bounce_buffer);

	dev->bounce_buffer = dma_alloc_coherent(&pci_dev->dev, R852_DMA_LEN,

		&dev->phys_bounce_buffer, GFP_KERNEL);



	if (!dev->bounce_buffer)

		goto error6;
@@ -946,8 +946,8 @@ static int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) 
error8:

	pci_iounmap(pci_dev, dev->mmio);

error7:

	pci_free_consistent(pci_dev, R852_DMA_LEN,

		dev->bounce_buffer, dev->phys_bounce_buffer);

	dma_free_coherent(&pci_dev->dev, R852_DMA_LEN, dev->bounce_buffer,

			  dev->phys_bounce_buffer);

error6:

	kfree(dev);

error5:
@@ -980,8 +980,8 @@ static void r852_remove(struct pci_dev *pci_dev) 
	/* Cleanup */

	kfree(dev->tmp_buffer);

	pci_iounmap(pci_dev, dev->mmio);

	pci_free_consistent(pci_dev, R852_DMA_LEN,

		dev->bounce_buffer, dev->phys_bounce_buffer);

	dma_free_coherent(&pci_dev->dev, R852_DMA_LEN, dev->bounce_buffer,

			  dev->phys_bounce_buffer);



	kfree(dev->chip);

	kfree(dev);