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

Message ID 1292578850-7392-1-git-send-email-agust@denx.de (mailing list archive)
State Superseded, archived
Headers

Commit Message

Anatolij Gustschin Dec. 17, 2010, 9:40 a.m. UTC 
  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>
---
 drivers/media/video/fsl-viu.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
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Patch

diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
index c9eb161..483a5ed 100644
--- a/drivers/media/video/fsl-viu.c
+++ b/drivers/media/video/fsl-viu.c
@@ -917,6 +917,8 @@  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);
 }
 
@@ -929,6 +931,8 @@  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);
 }
 
@@ -1350,6 +1354,7 @@  static int viu_release(struct file *file)
 
 	viu_stop_dma(dev);
 	videobuf_stop(&fh->vb_vidq);
+	videobuf_mmap_free(&fh->vb_vidq);
 
 	kfree(fh);