diff options
Diffstat (limited to 'drivers/media/platform/atmel/atmel-isc.c')
| -rw-r--r-- | drivers/media/platform/atmel/atmel-isc.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/platform/atmel/atmel-isc.c b/drivers/media/platform/atmel/atmel-isc.c index ccfe13b7d3f8..fa68fe912c95 100644 --- a/drivers/media/platform/atmel/atmel-isc.c +++ b/drivers/media/platform/atmel/atmel-isc.c @@ -617,7 +617,13 @@ static void isc_buffer_queue(struct vb2_buffer *vb) unsigned long flags; spin_lock_irqsave(&isc->dma_queue_lock, flags); - list_add_tail(&buf->list, &isc->dma_queue); + if (!isc->cur_frm && list_empty(&isc->dma_queue) && + vb2_is_streaming(vb->vb2_queue)) { + isc->cur_frm = buf; + isc_start_dma(isc->regmap, isc->cur_frm, + isc->current_fmt->reg_dctrl_dview); + } else + list_add_tail(&buf->list, &isc->dma_queue); spin_unlock_irqrestore(&isc->dma_queue_lock, flags); } @@ -1418,6 +1424,7 @@ static int atmel_isc_probe(struct platform_device *pdev) if (list_empty(&isc->subdev_entities)) { dev_err(dev, "no subdev found\n"); + ret = -ENODEV; goto unregister_v4l2_device; } |