[Ksummit-2013-discuss] ARM topic: Is DT on ARM the solution, or is there something better?

On 21/10/13 23:51, Guenter Roeck wrote:

In my opinion, not being able to describe behavior (or what people refer
to as "describe how the hardware is used") is a severe limitation of
devicetree usage in Linux. That is not a devicetree limitation per se,
though, it is simply a matter of choice (or, in some cases, the ability
of those arguing for new bindings to sell those bindings as "hardware
description").

I agree this is a real problem, and I think it hinders upstream
submission, since platform data was permitted to describe behaviour as
well as describe the hardware, and platform data is being replaced with
DT which is only permitted to describe the hardware. How then should we
specify the behaviour to the kernel?

I've already mentioned specific examples of this on the "Clock DT
bindings" thread, and would be very interested if anybody has thoughts
about it:
http://lkml.kernel.org/r/520E1DF5.4030409 at imgtec.com

Cheers
James