Re: [PATCH v3 1/3] arm64: dts: r8a7796: Add Renesas R8A7796 SoC support

[Simon Horman <horms@verge.net.au>]

Hi Dirk,

On Thu, Jul 21, 2016 at 07:20:30AM +0200, Dirk Behme wrote:
> Hi Simon,
> 
> On 21.07.2016 01:51, Simon Horman wrote:
> >On Wed, Jun 29, 2016 at 10:15:27AM +0200, Dirk Behme wrote:
> >>Hi Simon,
> >
> >...
> >
> >>Hmm, could you kindly help me to remember what's the recent status of your
> >>discussion above regarding a hierarchical structure of the RCar3 device
> >>trees?
> >
> >Hi Dirk,
> >
> >>From my point of view the most promising avenue at this time is work that
> >Geert has been doing to explore making things more flexible by updating the
> >DT automatically at run time. He can expand on this but the idea is to add
> >per-soc compat strings and otherwise update the DT into a per-SoC version.
> >This ought to allow significant portions of the DT to be common between
> >SoCs in the same R-Car generation for at lest Gen 2 and Gen 3.
> 
> 
> There are two topics:
> 
> a) Hierarchical static structure of devices trees and clock definitions for
> RCar3 SoCs
> b) Detecting of RCar3 SoC type and engineering sample revisions at runtime
> 
> About which topic do you talk here? I think we shouldn't mix them.

I was referring to topic a) which I would describe as consolidation of
static DT descriptions.  However, I believe that the same or a similar
approach to DT fixups can also be used for problem b). I agree
we should discuss these topics separately.

> Best regards
> 
> Dirk
> 
> P.S.: If you like, we could have a chat in #renesas-soc, too :)

Sure. In general I am there when I am at my desk and not completely
consumed by work at hand.