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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2015-07-20 08:41:32 (GMT) |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-08-05 05:23:52 (GMT) |
| commit | 77a68e56aae141d3e9c740a0ac43362af75d4890 (patch) | |
| tree | 331c81fe450bb885ec34ccedc4fd57fdc1bc68e5 /drivers/dma/mmp_tdma.c | |
| parent | 056f6c87028544de934f27caf95aa1545d585767 (diff) | |
| download | linux-77a68e56aae141d3e9c740a0ac43362af75d4890.tar.xz | |
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.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c index e683761..3df0422 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); |