[media] omap_vout: Add poll() support

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 30d8896bb710..9c5c19f142de 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -833,6 +833,15 @@ static void omap_vout_buffer_release(struct videobuf_queue *q,
 /*
  *  File operations
  */
+static unsigned int omap_vout_poll(struct file *file,
+                                   struct poll_table_struct *wait)
+{
+        struct omap_vout_device *vout = file->private_data;
+        struct videobuf_queue *q = &vout->vbq;
+
+        return videobuf_poll_stream(file, q, wait);
+}
+
 static void omap_vout_vm_open(struct vm_area_struct *vma)
 {
         struct omap_vout_device *vout = vma->vm_private_data;
@@ -1861,6 +1870,7 @@ static const struct v4l2_ioctl_ops vout_ioctl_ops = {
 
 static const struct v4l2_file_operations omap_vout_fops = {
         .owner          = THIS_MODULE,
+        .poll           = omap_vout_poll,
         .unlocked_ioctl = video_ioctl2,
         .mmap           = omap_vout_mmap,
         .open           = omap_vout_open,