Re: The future of DT binding maintainership

[Stephen Warren]

On 07/22/2013 02:57 PM, Tomasz Figa wrote:
> On Monday 22 of July 2013 16:34:49 Jon Loeliger wrote:

>>> My idea is to implement compile time verification in dtc, so I guess it
>>> will be more like the latter. Since dts is what dtc can already parse,
>>> my plan is to keep the schemas in spirit to dts, just
>>> modifying/extending it to allow specifying bindings with them, rather
>>> than static values.

> Things start to become fun when you get to bindings like regulators or 
> clocks, when part of the binding is defined on generic level (-supply, 
> clocks, clock-names properties) and remaining part is specific to device 
> (XXX in XXX-supply, count and order of clocks and clock-names, strings 
> allowed in clock-names property). This kind of inheritance is likely to be 
> the biggest troublemaker.

It's good you mentioned inheritance here. I believe that's one of the
key things. For example, the Tegra GPIO controller's binding is-a
GPIO-controller, and is-an interrupt-controller, and I imagine any
successful DT schema definition would very explicitly include that
information. Likewise, other nodes may be is-a GPIO-client (many times,
each parameterized with the property name that defines which GPIO you're
talking abot), and also may be is-an interrupt-client (with a similar
comment), etc.

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