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dmaengine: add DMA_TRANS_NONE to dma_transfer_direction

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Before dma_transfer_direction was introduced to replace
dma_data_direction, some dmaengine device uses DMA_NONE of
dma_data_direction for some talk with its client drivers.
The mxs-dma and its clients mxs-mmc and gpmi-nand are such case.

This patch adds DMA_TRANS_NONE to dma_transfer_direction and
migrate the DMA_NONE use in mxs-dma to it.

It also fixes the compile warning below.

CC      drivers/dma/mxs-dma.o
drivers/dma/mxs-dma.c: In function ‘mxs_dma_prep_slave_sg’:
drivers/dma/mxs-dma.c:420:16: warning: comparison between ‘enum dma_transfer_direction’ and ‘enum dma_data_direction’

Signed-off-by: Shawn Guo <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
This commit is contained in:
Shawn Guo 2011-12-13 23:48:03 +08:00 • committed by Vinod Koul
commit 62268ce917
2 changed files with 2 additions and 1 deletions
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2
drivers/dma/mxs-dma.c
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@ -391,7 +391,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg(
idx = 0;
}
if (direction == DMA_NONE) {
if (direction == DMA_TRANS_NONE) {
ccw = &mxs_chan->ccw[idx++];
pio = (u32 *) sgl;