[<prev] [next>] [day] [month] [year] [list]
Message-Id: <20220427085942.18159-1-ming.qian@nxp.com>
Date: Wed, 27 Apr 2022 16:59:42 +0800
From: Ming Qian <ming.qian@....com>
To: mchehab@...nel.org, shawnguo@...nel.org, hverkuil-cisco@...all.nl
Cc: robh+dt@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
festevam@...il.com, linux-imx@....com, linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2] media: amphion: ensure the buffer count is not less than min_buffer
the output buffer count should >= min_buffer_out
the capture buffer count should >= min_buffer_cap
Signed-off-by: Ming Qian <ming.qian@....com>
---
v2
- don't mess up the VIDIOC_CREATE_BUFS ioctl
drivers/media/platform/amphion/vpu_v4l2.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
index 9c0704cd5766..0d25ba3afbf6 100644
--- a/drivers/media/platform/amphion/vpu_v4l2.c
+++ b/drivers/media/platform/amphion/vpu_v4l2.c
@@ -340,8 +340,12 @@ static int vpu_vb2_queue_setup(struct vb2_queue *vq,
return -EINVAL;
}
return 0;
+ } else {
+ if (V4L2_TYPE_IS_OUTPUT(vq->type))
+ *buf_count = max_t(unsigned int, *buf_count, inst->min_buffer_out);
+ else
+ *buf_count = max_t(unsigned int, *buf_count, inst->min_buffer_cap);
}
-
*plane_count = cur_fmt->num_planes;
for (i = 0; i < cur_fmt->num_planes; i++)
psize[i] = cur_fmt->sizeimage[i];
--
2.36.0
Powered by blists - more mailing lists