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 <cor...@lwn.net>
---
drivers/media/video/marvell-ccic/mcam-core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/video/marvell-ccic/mcam-core.c
b/drivers/media/video/marvell-ccic/mcam-core.c
index e46a72a..036db27 100644
--- a/drivers/media/video/marvell-ccic/mcam-core.c
+++ b/drivers/media/video/marvell-ccic/mcam-core.c
@@ -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
--
1.7.9.3
--
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