From: Christian Eggers <ceggers-Mmb7MZpHnFY@public.gmane.org>
To: Matt Porter <mporter-l0cyMroinI0@public.gmane.org>
Cc: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: spi: spi-davinci: Fix direction in dma_map_single()
Date: Thu, 18 Apr 2013 21:31:59 +0200 [thread overview]
Message-ID: <2298140.4jrJLRXeBJ@p2400> (raw)
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-Mmb7MZpHnFY@public.gmane.org>
Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---
--- 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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next reply other threads:[~2013-04-18 19:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-18 19:31 Christian Eggers [this message]
2013-04-18 19:53 ` spi: spi-davinci: Fix direction in dma_map_single() Matt Porter
-- strict thread matches above, loose matches on Subject: below --
2013-04-18 19:44 Christian Eggers
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