DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set
This patch does not change actual behaviour since dma_unmap_page is just
an alias of dma_unmap_single on MIPS.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 9aa9ea9..88dab52 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -432,23 +432,27 @@
list_splice_init(&txd->tx_list, &dc->free_list);
list_move(&desc->desc_node, &dc->free_list);
- /*
- * We use dma_unmap_page() regardless of how the buffers were
- * mapped before they were submitted...
- */
if (!ds) {
dma_addr_t dmaaddr;
if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
dmaaddr = is_dmac64(dc) ?
desc->hwdesc.DAR : desc->hwdesc32.DAR;
- dma_unmap_page(chan2parent(&dc->chan), dmaaddr,
- desc->len, DMA_FROM_DEVICE);
+ if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
+ dma_unmap_single(chan2parent(&dc->chan),
+ dmaaddr, desc->len, DMA_FROM_DEVICE);
+ else
+ dma_unmap_page(chan2parent(&dc->chan),
+ dmaaddr, desc->len, DMA_FROM_DEVICE);
}
if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
dmaaddr = is_dmac64(dc) ?
desc->hwdesc.SAR : desc->hwdesc32.SAR;
- dma_unmap_page(chan2parent(&dc->chan), dmaaddr,
- desc->len, DMA_TO_DEVICE);
+ if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE)
+ dma_unmap_single(chan2parent(&dc->chan),
+ dmaaddr, desc->len, DMA_TO_DEVICE);
+ else
+ dma_unmap_page(chan2parent(&dc->chan),
+ dmaaddr, desc->len, DMA_TO_DEVICE);
}
}