diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2014-07-06 18:32:18 (GMT) |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2014-07-15 16:31:02 (GMT) |
| commit | 585a9d0b43d109ad76c0e43eae0fbe5ec3196246 (patch) | |
| tree | f6d17796832981acddcbf5ca17be0a80192a6455 /drivers/dma | |
| parent | 653e67f7e5e008258ff65c2067460cc9e8ee8f94 (diff) | |
| download | linux-585a9d0b43d109ad76c0e43eae0fbe5ec3196246.tar.xz | |
dmaengine: pl330: Use dma_transfer_direction instead of custom pl330_reqtype
The pl330 driver has the custom pl330_reqtype enum which has the same possible
settings as the generic dma_transfer_direction enum. Switching over to the
generic enum internally makes it possible to directly initialize it from the
transfer request direction.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/pl330.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 73fa9b7..3aff676 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -63,13 +63,6 @@ enum pl330_byteswap { SWAP_16, }; -enum pl330_reqtype { - MEMTOMEM, - MEMTODEV, - DEVTOMEM, - DEVTODEV, -}; - /* Register and Bit field Definitions */ #define DS 0x0 #define DS_ST_STOP 0x0 @@ -378,7 +371,7 @@ enum pl330_op_err { /* A request defining Scatter-Gather List ending with NULL xfer. */ struct pl330_req { - enum pl330_reqtype rqtype; + enum dma_transfer_direction rqtype; /* Index of peripheral for the xfer. */ unsigned peri:5; /* Unique token for this xfer, set by the client. */ @@ -1296,13 +1289,13 @@ static int _bursts(unsigned dry_run, u8 buf[], int off = 0; switch (pxs->r->rqtype) { - case MEMTODEV: + case DMA_MEM_TO_DEV: off += _ldst_memtodev(dry_run, &buf[off], pxs, cyc); break; - case DEVTOMEM: + case DMA_DEV_TO_MEM: off += _ldst_devtomem(dry_run, &buf[off], pxs, cyc); break; - case MEMTOMEM: + case DMA_MEM_TO_MEM: off += _ldst_memtomem(dry_run, &buf[off], pxs, cyc); break; default: @@ -1543,7 +1536,7 @@ static int pl330_submit_req(void *ch_id, struct pl330_req *r) } /* If request for non-existing peripheral */ - if (r->rqtype != MEMTOMEM && r->peri >= pi->pcfg.num_peri) { + if (r->rqtype != DMA_MEM_TO_MEM && r->peri >= pi->pcfg.num_peri) { dev_info(thrd->dmac->pinfo->dev, "%s:%d Invalid peripheral(%u)!\n", __func__, __LINE__, r->peri); @@ -2698,14 +2691,12 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic( case DMA_MEM_TO_DEV: desc->rqcfg.src_inc = 1; desc->rqcfg.dst_inc = 0; - desc->req.rqtype = MEMTODEV; src = dma_addr; dst = pch->fifo_addr; break; case DMA_DEV_TO_MEM: desc->rqcfg.src_inc = 0; desc->rqcfg.dst_inc = 1; - desc->req.rqtype = DEVTOMEM; src = pch->fifo_addr; dst = dma_addr; break; @@ -2713,6 +2704,7 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic( break; } + desc->req.rqtype = direction; desc->rqcfg.brst_size = pch->burst_sz; desc->rqcfg.brst_len = 1; fill_px(&desc->px, dst, src, period_len); @@ -2754,7 +2746,7 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst, desc->rqcfg.src_inc = 1; desc->rqcfg.dst_inc = 1; - desc->req.rqtype = MEMTOMEM; + desc->req.rqtype = DMA_MEM_TO_MEM; /* Select max possible burst size */ burst = pi->pcfg.data_bus_width / 8; @@ -2838,19 +2830,18 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, if (direction == DMA_MEM_TO_DEV) { desc->rqcfg.src_inc = 1; desc->rqcfg.dst_inc = 0; - desc->req.rqtype = MEMTODEV; fill_px(&desc->px, addr, sg_dma_address(sg), sg_dma_len(sg)); } else { desc->rqcfg.src_inc = 0; desc->rqcfg.dst_inc = 1; - desc->req.rqtype = DEVTOMEM; fill_px(&desc->px, sg_dma_address(sg), addr, sg_dma_len(sg)); } desc->rqcfg.brst_size = pch->burst_sz; desc->rqcfg.brst_len = 1; + desc->req.rqtype = direction; } /* Return the last desc in the chain */ |