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media: chips-media: wave5: Fix pipeline stall when queuing fails

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The Wave5 decoder calls v4l2_m2m_job_finish() immediately in device_run()
after submitting frames to firmware. When the firmware completes those
frames and the queue drains to zero, finish_decode() has no active M2M
job to finish, so v4l2_m2m_schedule_next_job() is never called and the
decoder stalls.

Call v4l2_m2m_try_schedule() in finish_decode() when the firmware queue
empties to ensure the framework always schedules the next device_run().

Fixes: a176ac5e70 ("media: chips-media: wave5: Improve performance of decoder")
Cc: stable@vger.kernel.org
Signed-off-by: Jackson Lee <jackson.lee@chipsnmedia.com>
Signed-off-by: Nas Chung <nas.chung@chipsnmedia.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Jackson Lee
2026-06-26 10:22:31 +09:00
committed by Hans Verkuil
parent b694ba0a55
commit e3a80073d9
1 changed files with 4 additions and 1 deletions
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5
drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
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@@ -475,7 +475,10 @@ static void wave5_vpu_dec_finish_decode(struct vpu_instance *inst)
v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
}
inst->queuing_fail = false;
if (inst->queuing_fail) {
inst->queuing_fail = false;
v4l2_m2m_try_schedule(m2m_ctx);
}
}
static int wave5_vpu_dec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)