diff options
| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2013-10-18 21:35:32 +0400 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2013-11-14 23:04:38 +0400 |
| commit | 54f8d501e842879143e867e70996574a54d1e130 (patch) | |
| tree | 1fcd65a5152d330167f5eefba5cc5d514ec91da1 /drivers/dma/at_hdmac.c | |
| parent | 6f57fd0578dff23a4bd16118f0cb4201bcec91f1 (diff) | |
| download | linux-54f8d501e842879143e867e70996574a54d1e130.tar.xz | |
dmaengine: remove DMA unmap from drivers
Remove support for DMA unmapping from drivers as it is no longer
needed (DMA core code is now handling it).
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[djbw: fix up chan2parent() unused warning in drivers/dma/dw/core.c]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/at_hdmac.c')
| -rw-r--r-- | drivers/dma/at_hdmac.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index cc7098ddf9d4..6deaefbec0b0 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -344,32 +344,7 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc) /* move myself to free_list */ list_move(&desc->desc_node, &atchan->free_list); - /* unmap dma addresses (not on slave channels) */ dma_descriptor_unmap(txd); - if (!atchan->chan_common.private) { - struct device *parent = chan2parent(&atchan->chan_common); - if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE) - dma_unmap_single(parent, - desc->lli.daddr, - desc->len, DMA_FROM_DEVICE); - else - dma_unmap_page(parent, - desc->lli.daddr, - desc->len, DMA_FROM_DEVICE); - } - if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE) - dma_unmap_single(parent, - desc->lli.saddr, - desc->len, DMA_TO_DEVICE); - else - dma_unmap_page(parent, - desc->lli.saddr, - desc->len, DMA_TO_DEVICE); - } - } - /* for cyclic transfers, * no need to replay callback function while stopping */ if (!atc_chan_is_cyclic(atchan)) { |