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-rw-r--r--drivers/dma/dw_dmac.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 6694676c9b8..4c83f18803f 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)
if (!regs)
return -EBUSY;
+ /* Apply default dma_mask if needed */
+ if (!pdev->dev.dma_mask) {
+ pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+ }
+
dw_params = dma_read_byaddr(regs, DW_PARAMS);
autocfg = dw_params >> DW_PARAMS_EN & 0x1;