* [resubmit] spi: spi-davinci: Fix direction in dma_map_single()
@ 2013-06-06 12:00 Christian Eggers
0 siblings, 0 replies; only message in thread
From: Christian Eggers @ 2013-06-06 12:00 UTC (permalink / raw)
To: Matt Porter; +Cc: linux-kernel, spi-devel-general
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>
Cc: stable@vger.kernel.org # v3.7.x+
Acked-by: Matt Porter <mporter@ti.com>
---
--- drivers/spi/spi-davinci.c.orig 2013-04-18 20:54:02.728719412 +0200
+++ drivers/spi/spi-davinci.c 2013-04-18 20:54:51.900623956 +0200
@@ -608,7 +608,7 @@ static int davinci_spi_bufs(struct spi_d
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;
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2013-06-06 12:00 [resubmit] spi: spi-davinci: Fix direction in dma_map_single() Christian Eggers
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