On Thu, Feb 27, 2014 at 03:16:03PM +0200, Tomi Valkeinen wrote: > On 27/02/14 13:56, Russell King - ARM Linux wrote: > > >> Is there even need for such a master device? You can find all the > >> connected display devices from any single display device, by just > >> following the endpoint links. > > > > Please read up on what has been discussed over previous years: > > > > http://lists.freedesktop.org/archives/dri-devel/2013-July/041159.html > > Thanks, that was an interesting thread. Too bad I missed it, it was > during the holiday season. And seems Laurent missed it also, as he > didn't make any replies. > > The thread seemed to go over the very same things that had already been > discussed with CDF. That may be - but the problem with CDF solving this problem is that it's wrong. It's fixing what is in actual fact a *generic* problem in a much too specific way. To put it another way, it's forcing everyone to fix the same problem in their own separate ways because no one is willing to take a step back and look at the larger picture. We can see that because ASoC has exactly the same problem - it has to wait until all devices (DMA, CPU DAIs, codecs etc) are present before it can initialise, just like DRM. Can you re-use the CDF solution for ASoC? No. Can it be re-used elsewhere in non-display subsystems? No. Therefore, CDF is yet another implementation specific solution to a generic problem which can't be re-used. Yes, I realise that CDF may do other stuff, but because of the above, it's a broken solution. -- 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
