OMAP3 ISP DQBUF hangs

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Hello,

I'm working with an OMAP3 DM3730 processor module with a ov3640 camera
module attached on parallel interface. I'm using Linux 3.5 and an
application which builds the pipeline and grabs an image like the
"media-ctl" and the "yavta" tools.

I configured the pipeline to:

sensor->ccdc->memory

When I call ioctl with DQBUF the calling functions are:

isp_video_dqbuf -> omap3isp_video_queue_dqbuf -> isp_video_buffer_wait ->
wait_event_interruptible

The last function waits until the state of the buffer will be reseted
somehow. Can someone tell my which function sets the state of the buffer? Am
I missing an interrupt?

Best Regards, Tom

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