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docs: dt: Update overlay file extension

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Building DTB overlays from .dts files is no longer supported.
Update the documentation to reflect this.

Fixes: 81d362732b ("kbuild: Disallow DTB overlays to built from .dts named source files")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Andrew Davis <afd@ti.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/ebce4d9591dd0259a636196dda31d40901dc04b0.1738752288.git.geert+renesas@glider.be
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
This commit is contained in:
Geert Uytterhoeven
2025-02-05 11:46:37 +01:00
committed by Rob Herring (Arm)
parent 2b18eda58c
commit 10fc30eaf3
2 changed files with 12 additions and 12 deletions
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12
Documentation/devicetree/overlay-notes.rst
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@@ -38,10 +38,10 @@ Lets take an example where we have a foo board with the following base tree::
};
---- foo.dts ---------------------------------------------------------------
The overlay bar.dts,
The overlay bar.dtso,
::
---- bar.dts - overlay target location by label ----------------------------
---- bar.dtso - overlay target location by label ---------------------------
/dts-v1/;
/plugin/;
&ocp {
@@ -51,7 +51,7 @@ The overlay bar.dts,
... /* various properties and child nodes */
};
};
---- bar.dts ---------------------------------------------------------------
---- bar.dtso --------------------------------------------------------------
when loaded (and resolved as described in [1]) should result in foo+bar.dts::
@@ -88,9 +88,9 @@ in the base DT. In this case, the target path can be provided. The target
location by label syntax is preferred because the overlay can be applied to
any base DT containing the label, no matter where the label occurs in the DT.
The above bar.dts example modified to use target path syntax is::
The above bar.dtso example modified to use target path syntax is::
---- bar.dts - overlay target location by explicit path --------------------
---- bar.dtso - overlay target location by explicit path -------------------
/dts-v1/;
/plugin/;
&{/ocp} {
@@ -100,7 +100,7 @@ The above bar.dts example modified to use target path syntax is::
... /* various properties and child nodes */
}
};
---- bar.dts ---------------------------------------------------------------
---- bar.dtso --------------------------------------------------------------
Overlay in-kernel API