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dmaengine: at_hdmac: extend hardware handshaking interface identification

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Peripheral handshaking identification numbers can be bigger than 15, so new
fields have been created in the CFG register.
Add macros to take this modification into account and use them in
at_dma_xlate() function.

Signed-off-by: Nicolas Ferre <[email protected]>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
This commit is contained in:
Nicolas Ferre 2013-05-10 15:19:14 +02:00 • committed by Vinod Koul
commit 72ae6e4b31
2 changed files with 6 additions and 0 deletions
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drivers/dma/at_hdmac.c
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@ -1230,6 +1230,8 @@ static struct dma_chan *at_dma_xlate(struct of_phandle_args *dma_spec,
per_id = dma_spec->args[1];
atslave->cfg = ATC_FIFOCFG_HALFFIFO | ATC_DST_H2SEL_HW
| ATC_SRC_H2SEL_HW | ATC_DST_PER(per_id)
| ATC_DST_PER_MSB(per_id)
| ATC_SRC_PER_MSB(per_id)
| ATC_SRC_PER(per_id);
atslave->dma_dev = &dmac_pdev->dev;