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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2012-09-24 10:58:04 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-09-24 18:35:29 +0200 |
| commit | e7736cdea223f3a5b867c359fb35cf08250dd771 (patch) | |
| tree | 9ec9873c35e67cd5389202cddc3157ca06e631f3 /include/linux/dmaengine.h | |
| parent | 9d069dc00b02b886abe3cab5e369140f7cd78965 (diff) | |
| download | linux-e7736cdea223f3a5b867c359fb35cf08250dd771.tar.gz linux-e7736cdea223f3a5b867c359fb35cf08250dd771.tar.bz2 linux-e7736cdea223f3a5b867c359fb35cf08250dd771.zip | |
dmaengine: Add flags parameter to dmaengine_prep_dma_cyclic()
With this parameter added to dmaengine_prep_dma_cyclic() the API will be in
sync with other dmaengine_prep_*() functions.
The dmaengine_prep_dma_cyclic() function primarily used by audio for cyclic
transfer required by ALSA, we use the from audio to ask dma drivers to
suppress interrupts (if DMA_PREP_INTERRUPT is cleared) when it is supported
on the platform.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 09da4e565297..d3201e438d16 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -653,7 +653,8 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_rio_sg( static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, - size_t period_len, enum dma_transfer_direction dir) + size_t period_len, enum dma_transfer_direction dir, + unsigned long flags) { return chan->device->device_prep_dma_cyclic(chan, buf_addr, buf_len, period_len, dir, flags, NULL); |