| From | Kamal Mostafa <> | Subject | [PATCH 095/133] spi: spi-davinci: Fix direction in dma_map_single() | Date | Fri, 16 Aug 2013 15:33:57 -0700 |
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3.8.13.7 -stable review patch. If anyone has any objections, please let me know.
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From: Christian Eggers <ceggers@gmx.de>
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: Kamal Mostafa <kamal@canonical.com> --- drivers/spi/spi-davinci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 13661e1..9f3d1bb 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -608,7 +608,7 @@ 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; -- 1.8.1.2
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