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Subject: media: nxp: Stop direct calls to queue num_buffers field
Author: Benjamin Gaignard <benjamin.gaign...@collabora.com>
Date: Thu Nov 9 17:34:44 2023 +0100
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.gaign...@collabora.com>
Reviewed-by: Andrzej Pietrasiewicz <andrze...@collabora.com>
CC: Rui Miguel Silva <rmf...@gmail.com>
CC: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
CC: Martin Kepplinger <mart...@posteo.de>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mche...@kernel.org>
drivers/media/platform/nxp/imx7-media-csi.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/drivers/media/platform/nxp/imx7-media-csi.c
b/drivers/media/platform/nxp/imx7-media-csi.c
index 15049c6aab37..4c467fb82789 100644
--- a/drivers/media/platform/nxp/imx7-media-csi.c
+++ b/drivers/media/platform/nxp/imx7-media-csi.c
@@ -1245,6 +1245,7 @@ static int imx7_csi_video_queue_setup(struct vb2_queue
*vq,
struct device *alloc_devs[])
{
struct imx7_csi *csi = vb2_get_drv_priv(vq);
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *pix = &csi->vdev_fmt;
unsigned int count = *nbuffers;
@@ -1254,14 +1255,14 @@ static int imx7_csi_video_queue_setup(struct vb2_queue
*vq,
if (*nplanes) {
if (*nplanes != 1 || sizes[0] < pix->sizeimage)
return -EINVAL;
- count += vq->num_buffers;
+ count += q_num_bufs;
}
count = min_t(__u32, IMX7_CSI_VIDEO_MEM_LIMIT / pix->sizeimage, count);
if (*nplanes)
- *nbuffers = (count < vq->num_buffers) ? 0 :
- count - vq->num_buffers;
+ *nbuffers = (count < q_num_bufs) ? 0 :
+ count - q_num_bufs;
else
*nbuffers = count;
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