[PATCH 1/2] dt-bindings: pwm: marvell,pxa-pwm: Add SpacemiT K3 PWM support

[Yixun Lan]

Hi Conor, 

On 16:41 Thu 09 Apr     , Conor Dooley wrote:
> On Thu, Apr 09, 2026 at 12:45:11AM +0000, Yixun Lan wrote:
> > The PWM controller in SpacemiT K3 SoC reuse the same IP as previous K1
> > generation, while the difference is that one additional bus clock is
> > added.
> > 
> > Signed-off-by: Yixun Lan <dlan at kernel.org>
> > ---
> >  .../devicetree/bindings/pwm/marvell,pxa-pwm.yaml   | 53 ++++++++++++++++++++--
> >  1 file changed, 50 insertions(+), 3 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/pwm/marvell,pxa-pwm.yaml b/Documentation/devicetree/bindings/pwm/marvell,pxa-pwm.yaml
> > index 8df327e52810..3427c8ef3945 100644
> > --- a/Documentation/devicetree/bindings/pwm/marvell,pxa-pwm.yaml
> > +++ b/Documentation/devicetree/bindings/pwm/marvell,pxa-pwm.yaml
> > @@ -15,7 +15,9 @@ allOf:
> >        properties:
> >          compatible:
> >            contains:
> > -            const: spacemit,k1-pwm
> > +            enum:
> > +              - spacemit,k1-pwm
> > +              - spacemit,k3-pwm
> >      then:
> >        properties:
> >          "#pwm-cells":
> > @@ -26,6 +28,38 @@ allOf:
> >            const: 1
> >            description: |
> >              Used for specifying the period length in nanoseconds.
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - spacemit,k3-pwm
> > +    then:
> > +      properties:
> > +        clock-names:
> > +          items:
> > +            - const: func
> > +            - const: bus
> 
> This condition here doesn't appear to do anything? It just repeats
> what's already done unconditonally below?
> 
You right, I should merge clock-names with below..

> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - spacemit,k3-pwm
> > +    then:
> > +      required:
> > +        - clock-names
> > +      properties:
> > +        clocks:
> > +          minItems: 2
> > +        clock-names:
> > +          minItems: 2
> > +    else:
> > +      properties:
> > +        clocks:
> > +          maxItems: 1
> > +        clock-names:
> > +          maxItems: 1
> >  
> >  properties:
> >    compatible:
> > @@ -36,7 +70,9 @@ properties:
> >            - marvell,pxa168-pwm
> >            - marvell,pxa910-pwm
> >        - items:
> > -          - const: spacemit,k1-pwm
> > +          - enum:
> > +              - spacemit,k1-pwm
> > +              - spacemit,k3-pwm
> >            - const: marvell,pxa910-pwm
> >  
> >    reg:
> > @@ -47,7 +83,18 @@ properties:
> >      description: Number of cells in a pwm specifier.
> >  
> >    clocks:
> > -    maxItems: 1
> > +    minItems: 1
> > +    items:
> > +      - description: The function clock
> > +      - description: An optional bus clock
> > +
> > +  clock-names:
> > +    minItems: 1
> > +    maxItems: 2
> > +    oneOf:
> > +      - items:
> > +          - const: func
> > +          - const: bus
> >  
> >    resets:
> >      maxItems: 1
> > 
> > -- 
> > 2.53.0
> > 



-- 
Yixun Lan (dlan)