github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 10:04:04 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

media: pci: tw686x: Stop direct calls to queue num_buffers field

Browse Source 
Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
This allows us to change how the number of buffers is computed in the
future.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
CC: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Benjamin Gaignard 2023-11-09 17:34:38 +01:00 committed by Mauro Carvalho Chehab
parent cf605a01f0
commit ba53e3b9bd
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/media/pci/tw686x/tw686x-video.c
View File

@ -423,6 +423,7 @@ static int tw686x_queue_setup(struct vb2_queue *vq,
unsigned int sizes[], struct device *alloc_devs[])
{
struct tw686x_video_channel *vc = vb2_get_drv_priv(vq);
unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int szimage =
(vc->width * vc->height * vc->format->depth) >> 3;
@ -430,8 +431,8 @@ static int tw686x_queue_setup(struct vb2_queue *vq,
* Let's request at least three buffers: two for the
* DMA engine and one for userspace.
*/
if (vq->num_buffers + *nbuffers < 3)
*nbuffers = 3 - vq->num_buffers;
if (q_num_bufs + *nbuffers < 3)
*nbuffers = 3 - q_num_bufs;
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < szimage)