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mei: me: set dma mask using DMA mapping API 

ME device is 64bit DMA capable
We assume both coherent and consistent memory to match

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler 2013-12-17 15:56:57 +02:00 committed by Greg Kroah-Hartman
parent 479327fc42
commit 3ecfb168a5
1 changed files with 15 additions and 0 deletions
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15
drivers/misc/mei/pci-me.c
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@ -144,6 +144,21 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
dev_err(&pdev->dev, "failed to get pci regions.\n");
goto disable_device;
}
if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) ||
dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (err)
err = dma_set_coherent_mask(&pdev->dev,
DMA_BIT_MASK(32));
}
if (err) {
dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
goto release_regions;
}
/* allocates and initializes the mei dev structure */
dev = mei_me_dev_init(pdev);
if (!dev) {