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@nxp.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
index 801bd08..34ab941 100644 (file)
--- a/drivers/media/platform/amphion/vpu_v4l2.c
+++ b/drivers/media/platform/amphion/vpu_v4l2.c
@@ -398,6 +398,10 @@ static int vpu_vb2_queue_setup(struct vb2_queue *vq,
                return 0;
        }
 
+       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];