Re: [PATCH v2 1/3] dt-bindings: leds: nxp,pca963x: add multicolor LED support

[Loic Poulain]

Hi Conor,

On Wed, Jul 1, 2026 at 6:58 PM Conor Dooley <conor@xxxxxxxxxx> wrote:
>
> On Wed, Jul 01, 2026 at 06:15:51PM +0200, Loic Poulain wrote:
> > Add support for grouping individual PCA963x channels into a multicolor
> > LED by introducing a multi-led@N node pattern. This follows the
> > convention established by other multicolor LED drivers such as
> > kinetic,ktd202x.
> >
> > This is necessary to support and model hardware setups where multiple
> > PWM channels drive a single physical RGB LED.
> >
> > Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>
> > ---
> >  .../devicetree/bindings/leds/nxp,pca963x.yaml      | 79 ++++++++++++++++++++++
> >  1 file changed, 79 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/leds/nxp,pca963x.yaml b/Documentation/devicetree/bindings/leds/nxp,pca963x.yaml
> > index 938d0e48fe51bce82779c4457c8e99cb6d80fe70..04b05b8195c18ae9fc1c1cb9d3c694d819ea88e5 100644
> > --- a/Documentation/devicetree/bindings/leds/nxp,pca963x.yaml
> > +++ b/Documentation/devicetree/bindings/leds/nxp,pca963x.yaml
> > @@ -74,6 +74,39 @@ patternProperties:
> >      required:
> >        - reg
> >
> > +  "^multi-led@[0-9a-f]+$":
> > +    type: object
> > +    $ref: leds-class-multicolor.yaml#
> > +    unevaluatedProperties: false
> > +
> > +    properties:
> > +      reg:
> > +        minimum: 0
>
> Some valid looking stuff from Sashiko here.
Yes, I'll address them in the upcoming v3.

> On this, was this meant to be minItems?

We really want to bound the register values.

Regards,
Loic

>
> pw-bot: changes-requested
>
> Thanks,
> Conor.
>
> > +
> > +      "#address-cells":
> > +        const: 1
> > +
> > +      "#size-cells":
> > +        const: 0
> > +
> > +    patternProperties:
> > +      "^led@[0-9a-f]+$":
> > +        type: object
> > +        $ref: common.yaml#
> > +        unevaluatedProperties: false
> > +
> > +        properties:
> > +          reg:
> > +            minimum: 0
> > +
> > +        required:
> > +          - reg
> > +
> > +    required:
> > +      - reg
> > +      - "#address-cells"
> > +      - "#size-cells"
> > +
> >  allOf:
> >    - if:
> >        properties:
> > @@ -137,4 +170,50 @@ examples:
> >          };
> >      };
> >
> > +  - |
> > +    #include <dt-bindings/leds/common.h>
> > +
> > +    i2c {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        led-controller@62 {
> > +            compatible = "nxp,pca9633";
> > +            reg = <0x62>;
> > +            #address-cells = <1>;
> > +            #size-cells = <0>;
> > +
> > +            /* Three channels controlling one RGB LED */
> > +            multi-led@0 {
> > +                    reg = <0>;
> > +                    color = <LED_COLOR_ID_RGB>;
> > +                    function = LED_FUNCTION_STATUS;
> > +                    #address-cells = <1>;
> > +                    #size-cells = <0>;
> > +
> > +                    led@0 {
> > +                            reg = <0>;
> > +                            color = <LED_COLOR_ID_RED>;
> > +                    };
> > +
> > +                    led@1 {
> > +                            reg = <1>;
> > +                            color = <LED_COLOR_ID_GREEN>;
> > +                    };
> > +
> > +                    led@2 {
> > +                            reg = <2>;
> > +                            color = <LED_COLOR_ID_BLUE>;
> > +                    };
> > +            };
> > +
> > +            /* Remaining channel used as a plain white LED */
> > +            led@3 {
> > +                    reg = <3>;
> > +                    color = <LED_COLOR_ID_WHITE>;
> > +                    function = LED_FUNCTION_STATUS;
> > +            };
> > +        };
> > +    };
> > +
> >  ...
> >
> > --
> > 2.34.1
> >