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.
Signed-off-by: Akinobu Mita <m...@fixstars.com>
Cc: Sujit Reddy Thumma <sthu...@codeaurora.org>
Cc: Vinayak Holikatti <vinholika...@gmail.com>
Cc: Santosh Y <santos...@gmail.com>
Cc: "James E.J. Bottomley" <jbottom...@parallels.com>
Cc: linux-scsi@vger.kernel.org
---
drivers/scsi/ufs/ufshcd-pltfrm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 94ba40c..c780840 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -122,6 +122,9 @@ static int ufshcd_pltfrm_probe(struct platform_device *pdev)
goto out;
}
+ if (!dev->dma_mask)
+ dev->dma_mask = &dev->coherent_dma_mask;
+
err = ufshcd_init(dev, &hba, mmio_base, irq);
if (err) {
dev_err(dev, "Intialization failed\n");
--
1.8.3.1
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