linux-kernel - Re: [PATCH v8 05/10] dt-bindings: usb: ci-hdrc-usb2-imx: add restrictions for reg, interrupts, clock and clock-names properties

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Message-ID: <20240312145035.GA2204647-robh@kernel.org>
Date: Tue, 12 Mar 2024 08:50:35 -0600
From: Rob Herring <robh@...nel.org>
To: Xu Yang <xu.yang_2@....com>
Cc: gregkh@...uxfoundation.org, krzysztof.kozlowski+dt@...aro.org,
	shawnguo@...nel.org, conor+dt@...nel.org, s.hauer@...gutronix.de,
	kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
	peter.chen@...nel.org, jun.li@....com, linux-usb@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	imx@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 05/10] dt-bindings: usb: ci-hdrc-usb2-imx: add
 restrictions for reg, interrupts, clock and clock-names properties

On Tue, Mar 12, 2024 at 05:16:58PM +0800, Xu Yang wrote:
> Add restrictions for reg, interrupts, clock and clock-names properties
> for imx Socs.
> 
> Signed-off-by: Xu Yang <xu.yang_2@....com>
> 
> ---
> Changes in v4:
>  - new patch since v3's discussion
>  - split the reg, interrupts, clock and clock-names properties into
>    common part and device-specific
> Changes in v5:
>  - keep common property unchanged
>  - make if-then more readable
>  - remove non imx part
> Changes in v6:
>  - new patch based on ci-hdrc-usb2-imx.yaml
> Changes in v7:
>  - no changes
> Changes in v8:
>  - remove if:else:if:else:if:else block
> ---
>  .../bindings/usb/chipidea,usb2-imx.yaml       | 80 +++++++++++++++++++
>  1 file changed, 80 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/chipidea,usb2-imx.yaml b/Documentation/devicetree/bindings/usb/chipidea,usb2-imx.yaml
> index cdbb224e9f68..fb1c378dfe88 100644
> --- a/Documentation/devicetree/bindings/usb/chipidea,usb2-imx.yaml
> +++ b/Documentation/devicetree/bindings/usb/chipidea,usb2-imx.yaml
> @@ -49,6 +49,12 @@ properties:
>            - const: fsl,imx6ul-usb
>            - const: fsl,imx27-usb
>  
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
>    clocks:
>      minItems: 1
>      maxItems: 3
> @@ -144,6 +150,80 @@ allOf:
>              - const: idle
>              - const: active
>  
> +  # imx27 Soc needs three clocks
> +  - if:
> +      properties:
> +        compatible:
> +          const: fsl,imx27-usb
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 3
> +          maxItems: 3

The max is already 3, so drop maxItems.

> +        clock-names:
> +          items:
> +            - const: ipg
> +            - const: ahb
> +            - const: per
> +
> +  # imx25 and imx35 Soc need three clocks
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - fsl,imx25-usb
> +              - fsl,imx35-usb
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 3
> +          maxItems: 3

Same here.

> +        clock-names:
> +          items:
> +            - const: ipg
> +            - const: ahb
> +            - const: per
> +
> +  # imx7d Soc need one clock
> +  - if:
> +      properties:
> +        compatible:
> +          items:
> +            - const: fsl,imx7d-usb
> +            - const: fsl,imx27-usb
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 1
> +        clock-names:
> +          maxItems: 1

What's the name?

> +
> +  # other Soc need one clock
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - fsl,imx23-usb
> +              - fsl,imx28-usb
> +              - fsl,imx50-usb
> +              - fsl,imx51-usb
> +              - fsl,imx53-usb
> +              - fsl,imx6q-usb
> +              - fsl,imx6sl-usb
> +              - fsl,imx6sx-usb
> +              - fsl,imx6ul-usb
> +              - fsl,imx8mm-usb
> +              - fsl,imx8mn-usb
> +              - fsl,vf610-usb
> +    then:
> +      properties:
> +        clocks:
> +          maxItems: 1
> +        clock-names:
> +          maxItems: 1
> +
>  unevaluatedProperties: false
>  
>  examples:
> -- 
> 2.34.1
>