Re: [PATCH v2 1/6] dt-bindings: display: add a device tree supplied boot logo

On Wed, 05 Aug 2026 00:56:12 +0200, Max Pedraza wrote:

Embedded products frequently need a product specific boot logo. Today the
only way to get one is to replace one of the logo_*_clut224.ppm files in
the kernel source tree, which bakes the image into the kernel image: a
change of branding, or a second product sharing the same board support,
requires a separate kernel build.

Add a binding for a "linux,boot-logo-clut224" node, which carries the logo
in the same paletted format the built-in CLUT224 logos already use, plus a
few optional properties describing where on the screen it is drawn.

The palette size is derived from the length of the "clut" property rather
than spelled out separately, and "data" holds plain palette indices; the
32 entry offset the frame buffer layer reserves for the console is an
implementation detail and is applied by the kernel, not by the binding.

Signed-off-by: Max Pedraza <redacted>
---
 .../display/linux,boot-logo-clut224.yaml      | 131 ++++++++++++++++++
 MAINTAINERS                                   |   1 +
 2 files changed, 132 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/linux,boot-logo-clut224.yaml

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/display/linux,boot-logo-clut224.example.dtb: /: 'compatible' is a required property
	from schema $id: http://devicetree.org/schemas/root-node.yaml
Documentation/devicetree/bindings/display/linux,boot-logo-clut224.example.dtb: /: 'model' is a required property
	from schema $id: http://devicetree.org/schemas/root-node.yaml
Documentation/devicetree/bindings/display/linux,boot-logo-clut224.example.dtb: chosen: 'logo' does not match any of the regexes: '^framebuffer', '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/chosen.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260804225617.264861-2-maximpedraza@gmail.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.