On Mon, 11 May 2026 15:51:41 +0800, Joey Lu wrote: > Extend the verisilicon,dc base schema to accommodate the Nuvoton MA35D1 > DCUltra Lite (a previous generation of the DC8000 series) which has a > different clock topology, no reset control, and a single output. > > - Replace the fixed clock/reset item lists with minItems/maxItems ranges > so sub-schemas can enforce variant-specific constraints > - Add a 'port' property (single-port alias) alongside the existing 'ports' > for single-output variants > - Remove the mandatory 'ports' requirement from the base schema; sub-schemas > shall enforce their own port topology > - Add a 'select' stanza so the validator matches any node whose compatible > contains a known Verisilicon DC string, including SoC-specific glue > - Relax additionalProperties to allow unevaluatedProperties enforcement in > sub-schemas > - Fix a minor whitespace issue in the port@0 description > > Add nuvoton,ma35d1-dcu.yaml as a sub-schema for the Nuvoton MA35D1 DCUltra > Lite display controller: > > The Nuvoton MA35D1 integrates the Verisilicon DCUltra Lite display > controller. It is a single-output display controller with a 32-bit > RGB (DPI) interface. Unlike the DC8000, it does not have discoverable > chip identity registers, does not support the CONFIG_EX commit path, > and uses dedicated IRQ status/enable registers at offsets 0x147C/0x1480. > The clock topology uses two clocks (bus gate and pixel divider) and > does not require explicit reset control from the driver. > > Signed-off-by: Joey Lu <[email protected]> > --- > .../bindings/display/nuvoton,ma35d1-dcu.yaml | 94 +++++++++++++++++++ > .../bindings/display/verisilicon,dc.yaml | 64 +++++++------ > 2 files changed, 131 insertions(+), 27 deletions(-) > create mode 100644 > Documentation/devicetree/bindings/display/nuvoton,ma35d1-dcu.yaml >
My bot found errors running 'make dt_binding_check' on your patch: yamllint warnings/errors: dtschema/dtc warnings/errors: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/display/nuvoton,ma35d1-dcu.yaml: allOf:0:$ref: 'http://devicetree.org/schemas/display/verisilicon,dc.yaml#' should not be valid under {'pattern': '^https?://'} hint: References must start with '/schemas' or be relative to current schema's path. from schema $id: http://devicetree.org/meta-schemas/keywords.yaml doc reference errors (make refcheckdocs): See https://patchwork.kernel.org/project/devicetree/patch/[email protected] 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.
