RE: [RFC 1/5] dt-bindings: pwm: Add RZ/G2L GPT binding

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Hi Rob,

Thanks for the feedback.

> Subject: Re: [RFC 1/5] dt-bindings: pwm: Add RZ/G2L GPT binding
> 
> On Sat, Apr 30, 2022 at 08:59:11AM +0100, Biju Das wrote:
> > Add device tree bindings for the RZ/G2L General PWM Timer (GPT).
> >
> > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > ---
> >  .../bindings/pwm/renesas,rzg2l-gpt.yaml       | 104 ++++++++++++++++++
> >  1 file changed, 104 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/pwm/renesas,rzg2l-gpt.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/pwm/renesas,rzg2l-gpt.yaml
> > b/Documentation/devicetree/bindings/pwm/renesas,rzg2l-gpt.yaml
> > new file mode 100644
> > index 000000000000..0e44c0fbe04a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/pwm/renesas,rzg2l-gpt.yaml
> > @@ -0,0 +1,104 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id:
> > +
> > +title: Renesas RZ/G2L General PWM Timer (GPT)
> > +
> > +maintainers:
> > +  - Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          - renesas,r9a07g044-gpt  # RZ/G2{L,LC}
> > +          - renesas,r9a07g054-gpt  # RZ/V2L
> > +      - const: renesas,rzg2l-gpt
> > +
> > +  reg:
> > +    # base address and length of the registers block for the PWM.
> 
> Yes, that's all 'reg', drop.

Agreed.

> 
> > +    maxItems: 1
> > +
> > +  '#pwm-cells':
> > +    # should be 2. See pwm.yaml in this directory for a description of
> > +    # the cells format.
> 
> 2 cells the schema says already. The reference for the format is okay, but
> move it to a 'description' entry.

Ok will add description entry.

> 
> > +    const: 2
> > +
> > +  interrupts:
> > +    items:
> > +      - description: GTCCRA input capture/compare match
> > +      - description: GTCCRB input capture/compare
> > +      - description: GTCCRC compare match
> > +      - description: GTCCRD compare match
> > +      - description: GTCCRE compare match
> > +      - description: GTCCRF compare match
> > +      - description: GTADTRA compare match
> > +      - description: GTADTRB compare match
> > +      - description: GTCNT overflow/GTPR compare match
> > +      - description: GTCNT underflow
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: ccmpa
> > +      - const: ccmpb
> > +      - const: cmpc
> > +      - const: cmpd
> > +      - const: cmpe
> > +      - const: cmpf
> > +      - const: adtrga
> > +      - const: adtrgb
> > +      - const: ovf
> > +      - const: unf
> > +
> > +  clocks:
> > +    # clock phandle and specifier pair.
> 
> That's all 'clocks', drop.

OK will drop this.

Regards,
Biju

> 
> > +    maxItems: 1
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  resets:
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - interrupt-names
> > +  - clocks
> > +  - power-domains
> > +  - resets
> > +
> > +allOf:
> > +  - $ref: pwm.yaml#
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/clock/r9a07g044-cpg.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +    gpt4: pwm@10048400 {
> > +        compatible = "renesas,r9a07g044-gpt", "renesas,rzg2l-gpt";
> > +        reg = <0x10048400 0xa4>;
> > +        interrupts = <GIC_SPI 270 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 271 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 272 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 273 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 274 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 275 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 276 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 277 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 278 IRQ_TYPE_EDGE_RISING>,
> > +                     <GIC_SPI 279 IRQ_TYPE_EDGE_RISING>;
> > +        interrupt-names = "ccmpa", "ccmpb", "cmpc", "cmpd",
> > +                          "cmpe", "cmpf", "adtrga", "adtrgb",
> > +                          "ovf", "unf";
> > +        clocks = <&cpg CPG_MOD R9A07G044_GPT_PCLK>;
> > +        power-domains = <&cpg>;
> > +        resets = <&cpg 523 R9A07G044_GPT_RST_C>;
> > +        #pwm-cells = <2>;
> > +    };
> > --
> > 2.25.1
> >
> >




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