diff options
-rw-r--r-- | drivers/dma/dw_dmac.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 6694676c9b82..4c83f18803f1 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c | |||
@@ -1661,6 +1661,12 @@ static int dw_probe(struct platform_device *pdev) | |||
1661 | if (!regs) | 1661 | if (!regs) |
1662 | return -EBUSY; | 1662 | return -EBUSY; |
1663 | 1663 | ||
1664 | /* Apply default dma_mask if needed */ | ||
1665 | if (!pdev->dev.dma_mask) { | ||
1666 | pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; | ||
1667 | pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); | ||
1668 | } | ||
1669 | |||
1664 | dw_params = dma_read_byaddr(regs, DW_PARAMS); | 1670 | dw_params = dma_read_byaddr(regs, DW_PARAMS); |
1665 | autocfg = dw_params >> DW_PARAMS_EN & 0x1; | 1671 | autocfg = dw_params >> DW_PARAMS_EN & 0x1; |
1666 | 1672 | ||