diff options
| author | Jason Chen <b02280@freescale.com> | 2011-11-15 17:33:15 +0800 |
|---|---|---|
| committer | Eric Miao <eric.miao@linaro.org> | 2011-12-04 23:14:15 +0800 |
| commit | 654824883be8d61bdaf0a48b2d53c19c5d9e02b9 (patch) | |
| tree | a31ddc29ead316389751c0365dd91958cc1108a5 | |
| parent | 98bf1041af5eccf7aa6ec00cd153c41a218ceebc (diff) | |
ENGR00162208 ipuv3 device: fix jitter issue of split mode
if play video with split mode, there is chance to see jitter of split stripe.
fix it by correct sync method of split mode kthreads.
Signed-off-by: Jason Chen <b02280@freescale.com>
| -rw-r--r-- | drivers/mxc/ipu3/ipu_device.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/mxc/ipu3/ipu_device.c b/drivers/mxc/ipu3/ipu_device.c index b6b07216c1d..0f68441fc83 100644 --- a/drivers/mxc/ipu3/ipu_device.c +++ b/drivers/mxc/ipu3/ipu_device.c @@ -940,8 +940,9 @@ static int split_task_thread(void *data) t->ret = ipu_queue_sp_task(t); - while (!kthread_should_stop()) - wait_event_interruptible(t->waitq, t->could_finish); + t->could_finish = true; + + wake_up_interruptible(&t->waitq); return 0; } @@ -1174,8 +1175,7 @@ static int queue_split_task(struct ipu_task_entry *t) return ret; } else { for (i = 0; i < size; i++) { - sp_task[i].could_finish = true; - wake_up_interruptible(&sp_task[i].waitq); + wait_event_interruptible(sp_task[i].waitq, sp_task[i].could_finish); kthread_stop(sp_task[i].thread); if (sp_task[i].ret < 0) { ret = sp_task[i].ret; |