Re: [PATCH v3 2/4] dt-bindings: leds: Add virtualcolor group dt bindings documentation.

[jonathan brophy]

On Sun, 21 October 2025 12:35 AM, JRob Herring (Arm) wrote:
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>On Sun, 19 Oct 2025 22:23:25 +1300, Jonathan Brophy wrote:>
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> From: Jonathan Brophy <professor_jonny@xxxxxxxxxxx>
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>> Add device tree binding documentation for the virtual LED group driver
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>> that implements virtual LED groups by aggregating multiple monochromatic
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>> LEDs
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>> Bindings for the virtual driver are not describing hardware LEDs they
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>> describe virtual devices made from groups of hardware LEDs created from an array
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>> of LED phandles.
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>> Normally the device tree is used to describe hardware not virtual hardware
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>> but it is particularly useful in situations where you require an LED to be a
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>> specific color by mixing primary colors, such as multi element multi color LEDs
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>> to be operated from a device tree binding.
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>> It also becomes useful with multiple LEDs operating the same indicator such as
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>> ring of light indicators where the LEDs are driven From different GPIO outputs
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>> unifying the control that can give basic indication during system startup,
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>> shutdown upgrade etc...
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>> co-developed-by: Radoslav Tsvetkov <rtsvetkov@xxxxxxxxxxxx>
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>> Signed-off-by: Radoslav Tsvetkov <rtsvetkov@xxxxxxxxxxxx>
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>> Signed-off-by: Jonathan Brophy <professor_jonny@xxxxxxxxxxx>
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>> ---
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>>  .../leds/leds-group-virtualcolor.yaml         | 110 ++++++++++++++++++
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>>  1 file changed, 110 insertions(+)
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>>  create mode 100644 Documentation/devicetree/bindings/leds/leds-group-virtualcolor.yaml
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>My bot found errors running 'make dt_binding_check' on your patch:
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>yamllint warnings/errors:
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>dtschema/dtc warnings/errors:
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>/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/leds/leds-group-virtualcolor.example.dtb: pwm-led->controller (pwm-leds): led-1: 'max-brightness' is a required property
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>       from schema $id: http://devicetree.org/schemas/leds/leds-pwm.yaml#
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>/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/leds/leds-group-virtualcolor.example.dtb: pwm-led->controller (pwm-leds): led-2: 'max-brightness' is a required property
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>       from schema $id: http://devicetree.org/schemas/leds/leds-pwm.yaml#
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>/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/leds/leds-group-virtualcolor.example.dtb: pwm-led->controller (pwm-leds): led-3: 'max-brightness' is a required property
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>       from schema $id: http://devicetree.org/schemas/leds/leds-pwm.yaml#
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>/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/leds/leds-group-virtualcolor.example.dtb: pwm-led->controller (pwm-leds): led-4: 'max-brightness' is a required property
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>      from schema $id: http://devicetree.org/schemas/leds/leds-pwm.yaml#
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sorry this was me checking my yaml's without validating the whole structure as those are covered by their own Yaml's
In futurre I will validate the whole structure.