Commit 1b346af2 authored Aug 16, 2010 by Sascha Hauer

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>

parent f0573e6d

drivers/video/mx3fb.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;