Re: [Buildroot] [PATCH v2 1/1] linux: make out-of-tree DTS work with newest kernels

[Niklas Cassel <Niklas.Cassel@wdc.com>]

Hello Romain,

On Wed, Jan 29, 2025 at 11:10:31AM +0100, Romain Naour via buildroot wrote:
> 
> AFAIK, the current BR2_LINUX_KERNEL_CUSTOM_DTS_PATH option doesn't seems to take
> into account any external devicetree overlay files (dtso).
> 
> I've send a new version of this patch (but dtso are not supported):
> 
> https://lore.kernel.org/buildroot/20250129095716.2511434-1-romain.naour@smile.fr/T/#t
> 
> > 
> > Would something like that be interesting for Buildroot, whether as a
> > generic DTB build package or infrastructure?
> 
> While reviewing this patch, I had to take a look at how to build a dtb file
> outside of the kernel build infrastructure (like Yocto does) but it's not easy.
> Actually we are happy to keep this build process hidden in the kernel Makefiles.
> 
> Since the next Buildroot meeting is next week, this is probably a topic we can
> discuss. Feel free to send a patch (even a draft).

The patch series that you link to above only cater to out-of-tree device
trees.

I've send a patch for in-tree device tree overlays (.dtso) that has been
ignored:
https://lore.kernel.org/buildroot/Z2VBjTBKUkn9Mehr@ryzen/T/#u

If there is a Buildroot meeting next week, perhaps you could be nice to
bring up the use case of in-tree device tree overlays (.dtso).

I would be nice if either:
1) My patch is merged.
2) Some other patch that adds support for in-tree device tree overlays
   (.dtso) gets accepted.


Kind regards,
Niklas
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot