On 07/10/14 10:23, Laurent Pinchart wrote: >> You mean the bridge driver would somehow take a peek into panel1 and >> panel2 nodes, looking for bridge specific properties? Sounds somewhat >> fragile to me... How would the bridge driver know a property is for the >> bridge? > > No, I mean the bridge driver should call the API provided by the panel objects > to get information about the panels, and compute its configuration parameters > from those. I'm not sure if that's possible though, it depends on whether the > bridge parameters can be computed from information provided by the panel. Right. My example tried to show a case where they can't be queried. The board or the wiring causes signal degradation, which can be fixed by increasing the bridge output voltage slightly. So it has nothing really to do with the panel, but the board. I fully admit that it is a purely theoretical case, and I don't have any real use cases in mind right now. Tomi