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ARM mx3fb: check for DMA engine type 

We have two dma engines in MX3 systems: The IPU and the SDMA
engine. We have to check if we got a channel from the correct
engine before proceeding with a channel.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Reviewed-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
This commit is contained in:
Sascha Hauer 2010-08-16 08:03:04 +02:00
parent f0573e6db1
commit 1b346af2f8
1 changed files with 4 additions and 0 deletions
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4
drivers/video/mx3fb.c
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@ -27,6 +27,7 @@
#include <linux/clk.h>
#include <linux/mutex.h>
#include <mach/dma.h>
#include <mach/hardware.h>
#include <mach/ipu.h>
#include <mach/mx3fb.h>
@ -1420,6 +1421,9 @@ static bool chan_filter(struct dma_chan *chan, void *arg)
struct device *dev;
struct mx3fb_platform_data *mx3fb_pdata;
if (!imx_dma_is_ipu(chan))
return false;
if (!rq)
return false;