From: Christian Eggers <ceggers@gmx.de>
Date: Mon, 29 Jul 2013 18:54:09 +0000 (+0200)
Subject: spi: spi-davinci: Fix direction in dma_map_single()
X-Git-Tag: v3.10.6~18
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f2281d42f6edb5934406cc1d32fa982e05b2ed41;p=platform%2Fkernel%2Flinux-3.10.git

spi: spi-davinci: Fix direction in dma_map_single()

commit 89c66ee890af18500fa4598db300cc07c267f900 upstream.

Commit 048177ce3b3962852fd34a7e04938959271c7e70 (spi: spi-davinci:
convert to DMA engine API) introduced a regression: dma_map_single()
is called with direction DMA_FROM_DEVICE for rx and for tx.

Signed-off-by: Christian Eggers <ceggers@gmx.de>
Acked-by: Matt Porter <mporter@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 50b13c9..df0aacc 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -610,7 +610,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
 		else
 			buf = (void *)t->tx_buf;
 		t->tx_dma = dma_map_single(&spi->dev, buf,
-				t->len, DMA_FROM_DEVICE);
+				t->len, DMA_TO_DEVICE);
 		if (!t->tx_dma) {
 			ret = -EFAULT;
 			goto err_tx_map;