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of: set dma_mask to point to coherent_dma_mask

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Platform devices created by DT code don't initialize dma_mask pointer to
anything. Set it to coherent_dma_mask by default if the architecture
code has not set it.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Rob Herring 2013-10-29 23:36:46 -05:00
parent 13ccacd594
commit 0589342c27
1 changed files with 2 additions and 0 deletions
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2
drivers/of/platform.c
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@ -216,6 +216,8 @@ static struct platform_device *of_platform_device_create_pdata(
dev->archdata.dma_mask = 0xffffffffUL;
#endif
dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
if (!dev->dev.dma_mask)
dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
dev->dev.bus = &platform_bus_type;
dev->dev.platform_data = platform_data;