On (20/01/22 10:39), Sergey Senozhatsky wrote:
> [..]
> > > }
> > >
> > > +static void set_buffer_cache_hints(struct vb2_queue *q,
> > > + struct vb2_buffer *vb,
> > > + struct v4l2_buffer *b)
> > > +{
> > > + vb->need_cache_sync_on_prepare = 1;
> > > +
> > > + if (q->dma_dir != DMA_TO_DEVICE)
> >
> > What should be done when dma_dir == DMA_BIDIRECTIONAL?
>
[..]
> We probably cannot enforce any other behavior here. Am I missing
> something?
Never mind. I got your point.
-ss
