diff options
| author | Russell King - ARM Linux <linux@arm.linux.org.uk> | 2012-03-06 22:34:46 (GMT) |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-03-13 06:06:52 (GMT) |
| commit | 884485e1f12dcd39390f042e772cdbefc9ebb750 (patch) | |
| tree | a35fccb601c48ae1ea839aa6d62e4f102f7b66c3 /drivers/dma/pl330.c | |
| parent | d2ebfb335b0426deb1a4fb14e4e926d81ecd8235 (diff) | |
| download | linux-884485e1f12dcd39390f042e772cdbefc9ebb750.tar.xz | |
dmaengine: consolidate assignment of DMA cookies
Everyone deals with assigning DMA cookies in the same way (it's part of
the API so they should be), so lets consolidate the common code into a
helper function to avoid this duplication.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
[imx-sdma.c & mxs-dma.c]
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/pl330.c')
| -rw-r--r-- | drivers/dma/pl330.c | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 2db7074..644eb78 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -429,26 +429,16 @@ static dma_cookie_t pl330_tx_submit(struct dma_async_tx_descriptor *tx) spin_lock_irqsave(&pch->lock, flags); /* Assign cookies to all nodes */ - cookie = tx->chan->cookie; - while (!list_empty(&last->node)) { desc = list_entry(last->node.next, struct dma_pl330_desc, node); - if (++cookie < 0) - cookie = 1; - desc->txd.cookie = cookie; + dma_cookie_assign(&desc->txd); list_move_tail(&desc->node, &pch->work_list); } - if (++cookie < 0) - cookie = 1; - last->txd.cookie = cookie; - + cookie = dma_cookie_assign(&last->txd); list_add_tail(&last->node, &pch->work_list); - - tx->chan->cookie = cookie; - spin_unlock_irqrestore(&pch->lock, flags); return cookie; |