From 9d51567e47a0d84f6b6e7751a4ea4f710cdcbbdf Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 1 Apr 2011 16:40:44 +0200 Subject: mtd: atmel_nand: modify test case for using DMA operations We have better performances not using DMA for oob operations. Modify size test so that it is using DMA for size greater than oobsize. Signed-off-by: Nicolas Ferre Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/mtd') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index f254fa636afc..e9fdbe46b247 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -280,7 +280,8 @@ static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) struct nand_chip *chip = mtd->priv; struct atmel_nand_host *host = chip->priv; - if (use_dma && len >= mtd->oobsize) + if (use_dma && len > mtd->oobsize) + /* only use DMA for bigger than oob size: better performances */ if (atmel_nand_dma_op(mtd, buf, len, 1) == 0) return; @@ -295,7 +296,8 @@ static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) struct nand_chip *chip = mtd->priv; struct atmel_nand_host *host = chip->priv; - if (use_dma && len >= mtd->oobsize) + if (use_dma && len > mtd->oobsize) + /* only use DMA for bigger than oob size: better performances */ if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) == 0) return; -- cgit v1.2.3