On Tue, Jun 17, 2014 at 12:01 PM, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > On Tue, Jun 17, 2014 at 04:32:11PM +0300, Pantelis Antoniou wrote: >> The complexity is absolutely required, and it has nothing to do with >> beaglebone capes. >> >> The fact of the matter is that reconfigurable hardware is here, on >> shipping system, and we, as the linux kernel community have to make >> sure it works, and that it works in a sane way. > > Right, so looking back in the git history, this project has been going > on for... at least four years? Probably longer than the length of time > that we've been converting ARM to DT. At no point during that has anyone > brought up the issue of DT being dynamic, so none of the drivers which > we have been converting caters for this. > > Isn't this a bit of a missed opportunity, if this is a direction that > OF wishes to head towards? I believe it absolutely is a missed opportunity, but that doesn't mean it isn't still needed moving forward. We've been using overlays successfully in the BeagleBoard.org community on BeagleBone Black for over a year now. It is just a shame we're still shipping a 3.8 kernel. This universal overlay provides hope to support most add-ons, but it doesn't address the dynamic nature of some add-on hardware. It is certainly my hope that this effort doesn't derail the overlay development work. > > Wouldn't it have been relevant to the discussion at kernel summit too, > concerning DRM/v4l2/componentised systems? What if someone comes along > tomorrow with part of their multimedia based system inside a FPGA > which they program up at runtime? > > -- > FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly > improving, and getting towards what was expected from it. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
