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[media] marvell-cam: Don't signal multiple frame completions in scatter/gather mode

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There is only one frame known to the DMA engine in scatter/gather mode, but
it still tells us that any or all of frames 1-3 are done at each completion
interrupt.  Avoid the creation of junk frames by being sure to only
"complete" one on each interrupt.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jonathan Corbet 2012-03-16 19:14:54 -03:00 committed by Mauro Carvalho Chehab
parent 121bbe254a
commit f2354dd180
1 changed files with 2 additions and 0 deletions
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2
drivers/media/video/marvell-ccic/mcam-core.c
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@ -1697,6 +1697,8 @@ int mccic_irq(struct mcam_camera *cam, unsigned int irqs)
if (irqs & (IRQ_EOF0 << frame)) {
mcam_frame_complete(cam, frame);
handled = 1;
if (cam->buffer_mode == B_DMA_sg)
break;
}
/*
* If a frame starts, note that we have DMA active. This