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spi/omap2_mcspi: change default DMA_MIN_BYTES value to 160 

The value 160 has been obtained as optimal in testing it for
wl1271 which use spi for communication.
In some sense this change might also influence on other spi devices
connected to omap2_mcspi controller.

Signed-off-by: Roman Tereshonkov <roman.tereshonkov@nokia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Roman Tereshonkov 2010-04-12 09:07:54 +00:00 committed by Grant Likely
parent 4a12404dda
commit 8b66c13474
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/omap2_mcspi.c
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@ -113,7 +113,7 @@ struct omap2_mcspi_dma {
/* use PIO for small transfers, avoiding DMA setup/teardown overhead and
* cache operations; better heuristics consider wordsize and bitrate.
*/
#define DMA_MIN_BYTES 8
#define DMA_MIN_BYTES 160
struct omap2_mcspi {