[PATCH] dma: tegra: use sg_dma_address() for getting dma buffer address

From: Laxman Dewangan
Date: Fri Jun 22 2012 - 11:12:08 EST


Use the sg_dma_address() to get the segment buffer address for
DMA transfer in place of sg_phys() which returns the physical
address of an sg entry.
The sg_dma_address() returns the correct buffer memory address
for DMA transfer.

Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>
---
drivers/dma/tegra20-apb-dma.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 2e4c187..a46a21c 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -929,7 +929,7 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_slave_sg(
for_each_sg(sgl, sg, sg_len, i) {
u32 len, mem;

- mem = sg_phys(sg);
+ mem = sg_dma_address(sg);
len = sg_dma_len(sg);

if ((len & 3) || (mem & 3) ||
--
1.7.1.1

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