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[media] media: fsl-viu: fix support for streaming with mmap method 

Streaming using mmap didn't work in the VIU driver. We need to
start/stop DMA in streamon/streamoff and free the buffers on
release. Add appropriate driver extension now.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Anatolij Gustschin 2010-12-17 06:40:50 -03:00 committed by Mauro Carvalho Chehab
parent 2a72b39e51
commit c335333050
1 changed files with 5 additions and 0 deletions
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5
drivers/media/video/fsl-viu.c
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@ -915,6 +915,8 @@ static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
if (fh->type != i)
return -EINVAL;
viu_start_dma(fh->dev);
return videobuf_streamon(&fh->vb_vidq);
}
@ -927,6 +929,8 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
if (fh->type != i)
return -EINVAL;
viu_stop_dma(fh->dev);
return videobuf_streamoff(&fh->vb_vidq);
}
@ -1331,6 +1335,7 @@ static int viu_release(struct file *file)
viu_stop_dma(dev);
videobuf_stop(&fh->vb_vidq);
videobuf_mmap_free(&fh->vb_vidq);
kfree(fh);