Hi Russell, On Thursday 20 March 2014 18:18:20 Russell King - ARM Linux wrote: > On Thu, Mar 20, 2014 at 07:16:29PM +0100, Laurent Pinchart wrote: > > On Thursday 20 March 2014 17:54:31 Grant Likely wrote: > > > On Wed, 12 Mar 2014 10:25:56 +0000, Russell King - ARM Linux wrote: [snip] > > > > I believe trying to do this according to the flow of data is just > > > > wrong. You should always describe things from the primary device for > > > > the CPU towards the peripheral devices and never the opposite > > > > direction. > > > > > > Agreed. > > > > Absolutely not agreed. The whole concept of CPU towards peripherals only > > makes sense for very simple devices and breaks as soon as the hardware > > gets more complex. There's no such thing as CPU towards peripherals when > > peripherals communicate directly. > > > > Please consider use cases more complex than just a display controller and > > an encoder, and you'll realize how messy not being able to parse the > > whole graph at once will become. Let's try to improve things, not to make > > sure to prevent support for future devices. > > That's odd, I did. > > Please draw some (ascii) diagrams of the situations you're saying this > won't work for, because at the moment all I'm seeing is some vague > hand-waving rather than anything factual that I can relate to. Help > us to actually _see_ the problem you have with this approach so we can > understand it. Working on it. Given my drawing skills this will take a bit of time. -- Regards, Laurent Pinchart -- 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
