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[media] media: blackfin: bfin_capture: use vb2_fop_mmap/poll 

No need to reinvent the wheel. Just use the already existing
functions provided by vb2.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Tested-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Lad, Prabhakar 2015-03-08 11:40:42 -03:00 committed by Mauro Carvalho Chehab
parent f314002279
commit 8fd05b7eee
1 changed files with 3 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/media/platform/blackfin/bfin_capture.c
View File

@ -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);