Signed-off-by: Javier Martin <javier.mar...@vista-silicon.com>
---
drivers/media/video/mx2_camera.c | 23 +++++++++--------------
1 files changed, 9 insertions(+), 14 deletions(-)
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index e0c5dd4..cdc614f 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -1274,7 +1274,10 @@ static void mx27_camera_frame_done_emma(struct
mx2_camera_dev *pcdev,
buf->state = state;
do_gettimeofday(&vb->v4l2_buf.timestamp);
vb->v4l2_buf.sequence = pcdev->frame_count;
- vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
+ if (state == MX2_STATE_ERROR)
+ vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
+ else
+ vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
}
pcdev->frame_count++;
@@ -1309,19 +1312,11 @@ static irqreturn_t mx27_camera_emma_irq(int irq_emma,
void *data)
struct mx2_buffer *buf;
if (status & (1 << 7)) { /* overflow */
- u32 cntl;
- /*
- * We only disable channel 1 here since this is the only
- * enabled channel
- *
- * FIXME: the correct DMA overflow handling should be resetting
- * the buffer, returning an error frame, and continuing with
- * the next one.
- */
- cntl = readl(pcdev->base_emma + PRP_CNTL);
- writel(cntl & ~(PRP_CNTL_CH1EN | PRP_CNTL_CH2EN),
- pcdev->base_emma + PRP_CNTL);
- writel(cntl, pcdev->base_emma + PRP_CNTL);
+ buf = list_entry(pcdev->active_bufs.next,
+ struct mx2_buffer, queue);
+ mx27_camera_frame_done_emma(pcdev,
+ buf->bufnum, MX2_STATE_ERROR);
+ status &= ~(1 << 7);
}
if ((((status & (3 << 5)) == (3 << 5)) ||
((status & (3 << 3)) == (3 << 3)))
--
1.7.0.4
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