V4L/DVB (8648): ivtv: improve CC support

- change the work-queue to a single threaded high prio workqueue
- use DMA instead of PIO for the sliced VBI data.
- remove some incorrect tests
- increase the internal VBI capture queue size for sliced VBI packets
- ignore duplicate VBI lines

With these changes it should finally be possible to get reliable closed
captions.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index aea1664948ce..4afc7ea07e86 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -688,7 +688,7 @@ static int __devinit ivtv_init_struct1(struct ivtv *itv)
         spin_lock_init(&itv->lock);
         spin_lock_init(&itv->dma_reg_lock);
 
-        itv->irq_work_queues = create_workqueue(itv->name);
+        itv->irq_work_queues = create_singlethread_workqueue(itv->name);
         if (itv->irq_work_queues == NULL) {
                 IVTV_ERR("Could not create ivtv workqueue\n");
                 return -1;