From de1a2419592d488a8e80bcc396c2be8ce06b71c3 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 27 Jun 2013 10:29:32 +0100 Subject: [PATCH] DMA-API: dma: pl08x: add dma_set_mask_and_coherent() call The DMA API requires drivers to call the appropriate dma_set_mask() functions before doing any DMA mapping. Add this required call to the AMBA PL08x driver. Acked-by: Vinod Koul Signed-off-by: Russell King --- drivers/dma/amba-pl08x.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index fce46c5bf1c7..e51a9832ef0d 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -2055,6 +2055,11 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) if (ret) return ret; + /* Ensure that we can do DMA */ + ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32)); + if (ret) + goto out_no_pl08x; + /* Create the driver state holder */ pl08x = kzalloc(sizeof(*pl08x), GFP_KERNEL); if (!pl08x) {