From c16f0b44984bc623621d26df22823b50f13f65d8 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Tue, 14 May 2013 08:15:21 -0300 Subject: [PATCH 107/203] mtd: nand: pxa3xx: Set info->use_dma properly Currently, the variable info->use_dma is never set and always zero-valued which means the driver never does DMA transfers. We fix this by simply setting info->use_dma to the module parameter, also named 'use_dma'. Note that the module parameter has the same name, but different semantics. This fixes a regression introduced by the below commit which removed the info->use_dma variable set. commit 4eb2da8994042d68e84e31138788429a102da2ea Author: Lei Wen Date: Mon Feb 28 10:32:13 2011 +0800 mtd: pxa3xx_nand: unify prepare command Before the above commit, the driver had use_dma=1 on all NAND commands except on CMD_STATUS. This behavior is long lost and we are not recovering in this patch, either. This was spotted and verified by human inspection. Signed-off-by: Ezequiel Garcia Tested-by: Nikita Kiryanov Acked-by: Igor Grinberg Reviewed-by: Haojian Zhuang Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/pxa3xx_nand.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -506,6 +506,7 @@ static int prepare_command_pool(struct p info->buf_count = 0; info->oob_size = 0; info->use_ecc = 0; + info->use_dma = (use_dma) ? 1 : 0; info->is_ready = 0; info->retcode = ERR_NONE; if (info->cs != 0)