From: hong.xu@atmel.com (Hong Xu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] MTD/atmel_nand: Fix support for CPUs that do not support DMA access
Date: Wed, 30 Mar 2011 16:26:41 +0800 [thread overview]
Message-ID: <1301473601-29570-3-git-send-email-hong.xu@atmel.com> (raw)
In-Reply-To: <1301473601-29570-1-git-send-email-hong.xu@atmel.com>
use_dma was always "1" even if the CPU does not support DMA
Tested on AT91SAM9261EK by Jean-Christophe PLAGNIOL-VILLARD
Reported-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Hong Xu <hong.xu@atmel.com>
---
drivers/mtd/nand/atmel_nand.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index c36ea50..1b43654 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -599,7 +599,10 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
nand_chip->options |= NAND_USE_FLASH_BBT;
}
- if (cpu_has_dma() && use_dma) {
+ if (!cpu_has_dma())
+ use_dma = 0;
+
+ if (use_dma) {
dma_cap_mask_t mask;
dma_cap_zero(mask);
--
1.7.3.3
next prev parent reply other threads:[~2011-03-30 8:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-30 8:26 [PATCH 1/3] MTD: atmel_nand: modify test case for using DMA operations Hong Xu
2011-03-30 8:26 ` [PATCH 2/3] MTD: atmel_nand: trivial: change DMA usage information trace Hong Xu
2011-04-01 12:51 ` Artem Bityutskiy
2011-03-30 8:26 ` Hong Xu [this message]
2011-04-01 12:54 ` [PATCH 3/3] MTD/atmel_nand: Fix support for CPUs that do not support DMA access Artem Bityutskiy
2011-04-01 13:37 ` Nicolas Ferre
2011-04-01 13:37 ` Artem Bityutskiy
2011-04-01 14:17 ` Artem Bityutskiy
2011-04-01 12:49 ` [PATCH 1/3] MTD: atmel_nand: modify test case for using DMA operations Artem Bityutskiy
2011-04-01 14:40 ` [PATCH 1/3 v2] " Nicolas Ferre
2011-04-01 13:36 ` Artem Bityutskiy
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