From f2354dd180755e25369167eda5de2c226d59fb1d Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Fri, 16 Mar 2012 19:14:54 -0300 Subject: [PATCH] [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: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab --- 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 e46a72af63c4..036db2746407 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 -- 2.20.1