[Ksummit-discuss] Devicetree Workshop at Kernel Summit Prague (26 Oct 2017)

Alexandre Belloni alexandre.belloni at free-electrons.com
Wed Oct 18 13:18:09 UTC 2017


On 18/10/2017 at 15:59:00 +0300, Pantelis Antoniou wrote:
> Hi Grant,
> 
> > On Oct 18, 2017, at 15:14 , Grant Likely <grant.likely at secretlab.ca> wrote:
> > 
> > On Tue, Oct 17, 2017 at 8:03 PM, Bird, Timothy <Tim.Bird at sony.com> wrote:
> >>> -----Original Message-----
> >>> From Geert Uytterhoeven on Tuesday, October 17, 2017 10:24 AM
> >>> On Tue, Oct 17, 2017 at 7:02 PM, Kumar Gala <kumar.gala at linaro.org> wrote:
> >>>> I think this also gets to having bindings described in a structured way so
> >>> they can be utilized for validation of dts files.  We are doing a little of this in
> >>> Zephyr since we are using a structured binding spec to generate code from
> >>> .dts (since we don’t utilize a runtime dtb).
> >>> 
> >>> So you are basically generating board files from .dts?
> >>> (closing the loop ;-)
> >> 
> >> I think we ought to do this on Linux, as a size optimization.
> >> -- Tim
> >> 
> >> P.S.  I think I'll leave it ambiguous whether this was meant as a joke or not. :-)
> > 
> 
> As crazy that sounds it is possible using the YAML bindings, i.e. C structure definitions
> and fill-up from DT automatically. Whether this is a good idea it’s another question :)
>

But that doesn't work with any driver parsing custom properties (using
of_property_read_* and the likes). I would very much like to see what
are the boot time improvements when doing that ;)

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com


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