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[09/20] s5p-g2d: Implement wait_prepare and wait_finish

Message ID 20180518185208.17722-10-ezequiel@collabora.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ezequiel Garcia May 18, 2018, 6:51 p.m. UTC
This driver is currently specifying a vb2_queue lock,
which means it straightforward to implement wait_prepare
and wait_finish.

Having these callbacks releases the queue lock while blocking,
which improves latency by allowing for example streamoff
or qbuf operations while waiting in dqbuf.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
---
 drivers/media/platform/s5p-g2d/g2d.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
index 66aa8cf1d048..ce4280730835 100644
--- a/drivers/media/platform/s5p-g2d/g2d.c
+++ b/drivers/media/platform/s5p-g2d/g2d.c
@@ -142,6 +142,8 @@  static const struct vb2_ops g2d_qops = {
 	.queue_setup	= g2d_queue_setup,
 	.buf_prepare	= g2d_buf_prepare,
 	.buf_queue	= g2d_buf_queue,
+	.wait_prepare	= vb2_ops_wait_prepare,
+	.wait_finish	= vb2_ops_wait_finish,
 };
 
 static int queue_init(void *priv, struct vb2_queue *src_vq,