Hi Frank,

On 20-01-21, 23:34, Frank Rowand wrote:

It should be possible to apply this same concept to copying overlay_base.dts
to overlay_base_base.dts, removing the "/plugin/;" from overlay_base_base.dts
and using an additional rule to use fdtoverlay to apply overlay.dtb on top
of overlay_base_base.dtb.

Are you suggesting to then merge this with testcases.dtb to get
static_test.dtb or keep two output files (static_test.dtb from
testcases.dtb + overlays and static_test2.dtb from overlay_base.dtb
and overlay.dtb) ?

Asking because as I mentioned earlier, overlay_base.dtb doesn't have
__overlay__ property for its nodes and we can't apply that to
testcases.dtb using fdtoverlay.

Yes, overlay_base_base is a terrible name.  Just used to illustrate the point.

I tried this by hand and am failing miserably.  But I am not using the proper
environment (just a quick hack to see if the method might work).  So I would
have to set things up properly to really test this.

If this does work, it would remove my objections to you trying to transform
the existing unittest .dts test data files (because you would not have to
actually modify the existing .dts files).

-- 
viresh