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authorMaxime Ripard <maxime.ripard@free-electrons.com>2015-07-20 10:41:32 +0200
committerVinod Koul <vinod.koul@intel.com>2015-08-05 10:53:52 +0530
commit77a68e56aae141d3e9c740a0ac43362af75d4890 (patch)
tree331c81fe450bb885ec34ccedc4fd57fdc1bc68e5 /drivers/dma/mmp_tdma.c
parent056f6c87028544de934f27caf95aa1545d585767 (diff)
downloadlinux-77a68e56aae141d3e9c740a0ac43362af75d4890.tar.bz2
dmaengine: Add an enum for the dmaengine alignment constraints
Most drivers need to set constraints on the buffer alignment for async tx operations. However, even though it is documented, some drivers either use a defined constant that is not matching what the alignment variable expects (like DMA_BUSWIDTH_* constants) or fill the alignment in bytes instead of power of two. Add a new enum for these alignments that matches what the framework expects, and convert the drivers to it. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/mmp_tdma.c')
-rw-r--r--drivers/dma/mmp_tdma.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index e683761e0f8f..3df0422607d5 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -100,7 +100,6 @@ enum mmp_tdma_type {
PXA910_SQU,
};
-#define TDMA_ALIGNMENT 3
#define TDMA_MAX_XFER_BYTES SZ_64K
struct mmp_tdma_chan {
@@ -695,7 +694,7 @@ static int mmp_tdma_probe(struct platform_device *pdev)
tdev->device.device_pause = mmp_tdma_pause_chan;
tdev->device.device_resume = mmp_tdma_resume_chan;
tdev->device.device_terminate_all = mmp_tdma_terminate_all;
- tdev->device.copy_align = TDMA_ALIGNMENT;
+ tdev->device.copy_align = DMAENGINE_ALIGN_8_BYTES;
dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
platform_set_drvdata(pdev, tdev);