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[v3,09/16] ref-manual: add missing EXTERNAL_KERNEL_DEVICETREE variable

Message ID 20241010-release-note-5-1-v3-9-2cef1a58f1ab@bootlin.com
State Accepted
Headers show
Series Updates for styhead | expand

Commit Message

Antonin Godard Oct. 10, 2024, 12:10 p.m. UTC 
This variable can be used to specify one or more compiled device tree or
device tree overlays to use in addition to the one compiled by the
kernel.

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
---
 documentation/ref-manual/variables.rst | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index 40771a51b..206e75833 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -2526,6 +2526,13 @@  system and gives an overview of their function and contents.
       external tools. See the :ref:`ref-classes-kernel-yocto` class in
       ``meta/classes-recipe`` to see how the variable is used.
 
+   :term:`EXTERNAL_KERNEL_DEVICETREE`
+      When inheriting :ref:`ref-classes-kernel-fitimage` and a
+      :term:`PREFERRED_PROVIDER` for ``virtual/dtb`` set to ``devicetree``, the
+      variable :term:`EXTERNAL_KERNEL_DEVICETREE` can be used to specify a
+      directory containing one or more compiled device tree or device tree
+      overlays to use.
+
    :term:`KERNEL_LOCALVERSION`
       This variable allows to append a string to the version
       of the kernel image. This corresponds to the ``CONFIG_LOCALVERSION``