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>
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index e0de0d0..e6d08b8 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -113,7 +113,7 @@
/* 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 {