linux-kernel - Re: [PATCH 1/2] ASoC: dt-bindings: lpass-va: add npl clock for new VA macro

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Message-ID: <f3a6a7b1-b196-0abb-0c18-8a13908c6891@linaro.org>
Date:   Tue, 15 Nov 2022 15:21:05 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        broonie@...nel.org
Cc:     alsa-devel@...a-project.org, lgirdwood@...il.com, perex@...ex.cz,
        tiwai@...e.com, linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] ASoC: dt-bindings: lpass-va: add npl clock for new VA
 macro

On 15/11/2022 11:55, Srinivas Kandagatla wrote:
> LPASS VA Macro now has soundwire master to deal with access to
> analog mic in low power island use cases. This also means that VA macro
> now needs to get hold of the npl clock too. Add clock bindings required
> for this.
> 
> As part of adding this bindings, also update bindings to be able to
> specific and associate the clock names specific to the SoC.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  .../bindings/sound/qcom,lpass-va-macro.yaml   | 72 ++++++++++++++++---
>  1 file changed, 64 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml
> index c36caf90b837..848e34111df1 100644
> --- a/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml
> +++ b/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml
> @@ -27,16 +27,13 @@ properties:
>      const: 0
>  
>    clocks:
> -    maxItems: 3
> +    minItems: 1
> +    maxItems: 4
> +
>  
>    clock-names:
> -    oneOf:
> -      - items:   #for ADSP based platforms
> -          - const: mclk
> -          - const: core
> -          - const: dcodec
> -      - items:   #for ADSP bypass based platforms
> -          - const: mclk
> +    minItems: 1
> +    maxItems: 4
>  
>    clock-output-names:
>      maxItems: 1
> @@ -61,6 +58,65 @@ required:
>    - reg
>    - "#sound-dai-cells"
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: qcom,sc7280-lpass-va-macro
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 1

You can skip minItems here.

> +          maxItems: 1
> +        clock-names:
> +          items:
> +            - const: mclk
> +      required:
> +        - clock-names
> +        - clocks

IIUC, all variants require now clocks, so these two lines should be part
of top level "required:".

> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: qcom,sm8250-lpass-va-macro
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 3
> +          maxItems: 3
> +        clock-names:
> +          items:
> +            - const: mclk
> +            - const: core
> +            - const: dcodec
> +      required:
> +        - clock-names
> +        - clocks
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - qcom,sc8280xp-lpass-va-macro
> +              - qcom,sm8450-lpass-va-macro
> +    then:
> +      properties:
> +        clocks:
> +          minItems: 4
> +          maxItems: 4
> +        clock-names:
> +          items:
> +            - const: mclk
> +            - const: npl

How about making it the last clock so the order matches with sm8250?


Best regards,
Krzysztof