From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>
No need to reinvent the wheel. Just use the already existing
functions provided by vb2.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
Acked-by: Scott Jiang <scott.jiang.linux@xxxxxxxxx>
Tested-by: Scott Jiang <scott.jiang.linux@xxxxxxxxx>
---
drivers/media/platform/blackfin/bfin_capture.c | 28 +++-----------------------
1 file changed, 3 insertions(+), 25 deletions(-)
diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index bf7e999..84827d2 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -244,18 +244,6 @@ static int bcap_release(struct file *file)
return 0;
}
-static int bcap_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&bcap_dev->mutex))
- return -ERESTARTSYS;
- ret = vb2_mmap(&bcap_dev->buffer_queue, vma);
- mutex_unlock(&bcap_dev->mutex);
- return ret;
-}
-
#ifndef CONFIG_MMU
static unsigned long bcap_get_unmapped_area(struct file *file,
unsigned long addr,
@@ -273,17 +261,6 @@ static unsigned long bcap_get_unmapped_area(struct file *file,
}
#endif
-static unsigned int bcap_poll(struct file *file, poll_table *wait)
-{
- struct bcap_device *bcap_dev = video_drvdata(file);
- unsigned int res;
-
- mutex_lock(&bcap_dev->mutex);
- res = vb2_poll(&bcap_dev->buffer_queue, file, wait);
- mutex_unlock(&bcap_dev->mutex);
- return res;
-}
-
static int bcap_queue_setup(struct vb2_queue *vq,
const struct v4l2_format *fmt,
unsigned int *nbuffers, unsigned int *nplanes,
@@ -900,11 +877,11 @@ static struct v4l2_file_operations bcap_fops = {
.open = bcap_open,
.release = bcap_release,
.unlocked_ioctl = video_ioctl2,
- .mmap = bcap_mmap,
+ .mmap = vb2_fop_mmap,
#ifndef CONFIG_MMU
.get_unmapped_area = bcap_get_unmapped_area,
#endif
- .poll = bcap_poll
+ .poll = vb2_fop_poll
};
static int bcap_probe(struct platform_device *pdev)
@@ -1001,6 +978,7 @@ static int bcap_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&bcap_dev->dma_queue);
vfd->lock = &bcap_dev->mutex;
+ vfd->queue = q;
/* register video device */
ret = video_register_device(bcap_dev->video_dev, VFL_TYPE_GRABBER, -1);
--
2.1.0
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
