[PATCH 2/2] kbuild: Allow DTB overlays to built from .dtso named source files

Simon Glass sjg at chromium.org
Fri May 5 02:40:51 CEST 2023

On Thu, 4 May 2023 at 06:26, Rasmus Villemoes
<rasmus.villemoes at prevas.dk> wrote:
> [Linux commit 363547d2191c]
> Currently DTB Overlays (.dtbo) are build from source files with the same
> extension (.dts) as the base DTs (.dtb). This may become confusing and
> even lead to wrong results. For example, a composite DTB (created from a
> base DTB and a set of overlays) might have the same name as one of the
> overlays that create it.
> Different files should be generated from differently named sources.
>  .dtb  <-> .dts
>  .dtbo <-> .dtso
> We do not remove the ability to compile DTBO files from .dts files here,
> only add a new rule allowing the .dtso file name. The current .dts named
> overlays can be renamed with time. After all have been renamed we can
> remove the other rule.
> [Import notes: Adapt to U-Boot by using the cmd_dtco function instead
> of cmd_dtc just like the current .dts -> .dtbo rule.]
> Signed-off-by: Rasmus Villemoes <rasmus.villemoes at prevas.dk>
> ---
>  scripts/Makefile.lib | 3 +++
>  1 file changed, 3 insertions(+)

Reviewed-by: Simon Glass <sjg at chromium.org>

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