summaryrefslogtreecommitdiff
path: root/drivers/dma/xgene-dma.c
diff options
context:
space:
mode:
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/xgene-dma.c
parent056f6c87028544de934f27caf95aa1545d585767 (diff)
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/xgene-dma.c')
-rw-r--r--drivers/dma/xgene-dma.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/dma/xgene-dma.c b/drivers/dma/xgene-dma.c
index 620fd55ec766..fe87a634b145 100644
--- a/drivers/dma/xgene-dma.c
+++ b/drivers/dma/xgene-dma.c
@@ -150,7 +150,6 @@
#define XGENE_DMA_PQ_CHANNEL 1
#define XGENE_DMA_MAX_BYTE_CNT 0x4000 /* 16 KB */
#define XGENE_DMA_MAX_64B_DESC_BYTE_CNT 0x14000 /* 80 KB */
-#define XGENE_DMA_XOR_ALIGNMENT 6 /* 64 Bytes */
#define XGENE_DMA_MAX_XOR_SRC 5
#define XGENE_DMA_16K_BUFFER_LEN_CODE 0x0
#define XGENE_DMA_INVALID_LEN_CODE 0x7800000000000000ULL
@@ -1740,13 +1739,13 @@ static void xgene_dma_set_caps(struct xgene_dma_chan *chan,
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) {
dma_dev->device_prep_dma_xor = xgene_dma_prep_xor;
dma_dev->max_xor = XGENE_DMA_MAX_XOR_SRC;
- dma_dev->xor_align = XGENE_DMA_XOR_ALIGNMENT;
+ dma_dev->xor_align = DMAENGINE_ALIGN_64_BYTES;
}
if (dma_has_cap(DMA_PQ, dma_dev->cap_mask)) {
dma_dev->device_prep_dma_pq = xgene_dma_prep_pq;
dma_dev->max_pq = XGENE_DMA_MAX_XOR_SRC;
- dma_dev->pq_align = XGENE_DMA_XOR_ALIGNMENT;
+ dma_dev->pq_align = DMAENGINE_ALIGN_64_BYTES;
}
}