Commit 8b66c134 authored Apr 12, 2010 by Roman Tereshonkov Committed by Grant Likely May 25, 2010

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>

parent 4a12404d

drivers/spi/omap2_mcspi.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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 {