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Commit f2354dd1 authored by Jonathan Corbet's avatar Jonathan Corbet Committed by Mauro Carvalho Chehab
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[media] marvell-cam: Don't signal multiple frame completions in scatter/gather mode 



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: default avatarJonathan Corbet <corbet@lwn.net>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 121bbe25

drivers/media/video/marvell-ccic/mcam-core.c

+2 −0
Original line number Diff line number Diff line
@@ -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