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ufs-pltfrm: initialize DMA mask for device-tree probed device

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The device-tree probed device for ARM doesn't have dev->dma_mask.
So dma_set_mask() for the device doesn't succeed.  The popular trick
for this is - dev->dma_mask = &dev->coherent_dma_mask;

Currently there is no dma_set_mask() call in ufs-pltfrm, but the
forthcoming fix needs proper DMA mask setting in ufs core driver.  So
initializing dev->dma_mask as described above is required.

Change-Id: I8428f106ca2d97badb7bf57cbb1d3ee14dddaf7f
Signed-off-by: Akinobu Mita <mita@fixstars.com>
Cc: Sujit Reddy Thumma <sthumma@codeaurora.org>
Cc: Vinayak Holikatti <vinholikatti@gmail.com>
Cc: Santosh Y <santoshsy@gmail.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Patch-mainline: linux-scsi@vger.kernel.org @ 2013/08/19 19:26
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
This commit is contained in:
Akinobu Mita 2013-08-19 22:56:05 +09:00 • committed by David Keitel
parent 2d4f54de1b
commit f3b30c5241
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/ufs/ufshcd-pltfrm.c
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@ -331,6 +331,9 @@ int ufshcd_pltfrm_init(struct platform_device *pdev,
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
err = ufshcd_init(hba, mmio_base, irq);
if (err) {
dev_err(dev, "Intialization failed\n");