staging: comedi: pcl812: use common function to setup dma

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The pcl812_ai_setup_dma() and pcl812_ai_setup_next_dma() functions are similar
other than the buffer switch and the inclusion of the "unread_samples" in
pcl818_ai_setup_next_dma() when calculating the dma size.

Merge these two functions by initializing the 'dma->cur_dma' in the callers
and passing '0' for the "unread_samples" when first starting the DMA.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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H Hartley Sweeten 2015-01-14 10:05:16 -07:00 • committed by Greg Kroah-Hartman

parent 92afc2b229

commit a7f0ce8e5d

1 changed files with 19 additions and 33 deletions

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drivers/staging/comedi/drivers/pcl812.c

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