[PATCH RFC 24/51] DMA-API: dma: pl330: add dma_set_mask_and_coherent() call

Russell King
2013-08-01T21:58:37Z

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.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
drivers/dma/pl330.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 593827b..9d30c53 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2869,6 +2869,10 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)

pdat = adev->dev.platform_data;

+ ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;
+
/* Allocate a new DMAC and its Channels */
pdmac = devm_kzalloc(&adev->dev, sizeof(*pdmac), GFP_KERNEL);
if (!pdmac) {
--
1.7.4.4