[PATCH 2/7] staging: mt7621-mmc: set correct dma mask.

[NeilBrown]

Since commit f8c55dc6e828 ("MIPS: use generic dma noncoherent ops for
simple noncoherent platforms") changed MIPS dma handling, the mmc
driver fails because it doesn't have a dma mask is set.

So set the correct dma mask.

Signed-off-by: NeilBrown <neil at brown.name>
---
 drivers/staging/mt7621-mmc/sd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/mt7621-mmc/sd.c b/drivers/staging/mt7621-mmc/sd.c
index 3d918e481bd8..6320bf5a6dd5 100644
--- a/drivers/staging/mt7621-mmc/sd.c
+++ b/drivers/staging/mt7621-mmc/sd.c
@@ -1673,7 +1673,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	host->mrq = NULL;
 	//init_MUTEX(&host->sem); /* we don't need to support multiple threads access */
 
-	mmc_dev(mmc)->dma_mask = NULL;
+	dma_coerce_mask_and_coherent(mmc_dev(mmc), DMA_BIT_MASK(32));
 
 	/* using dma_alloc_coherent*/  /* todo: using 1, for all 4 slots */
 	host->dma.gpd = dma_alloc_coherent(&pdev->dev,