linux-kernel - Re: [PATCH v2 1/3] dt-bindings: media: camss: qcom,msm8996-camss: Add CAMSS power domain

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Date:   Fri, 26 May 2023 20:46:08 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Yassine Oudjana <yassine.oudjana@...il.com>
Cc:     Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Hans Verkuil <hansverk@...co.com>,
        Yassine Oudjana <y.oudjana@...tonmail.com>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/3] dt-bindings: media: camss: qcom,msm8996-camss:
 Add CAMSS power domain

Yo Yassine,

On Fri, May 26, 2023 at 09:07:10PM +0300, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@...tonmail.com>
> 
> Add the CAMSS power domain which is needed for the proper operation of
> CAMSS, and add power-domain-names to ease fetching it as well as the other
> power domains.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>  .../bindings/media/qcom,msm8996-camss.yaml          | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,msm8996-camss.yaml b/Documentation/devicetree/bindings/media/qcom,msm8996-camss.yaml
> index 8a10aa1cafc5..27c9a11f0df9 100644
> --- a/Documentation/devicetree/bindings/media/qcom,msm8996-camss.yaml
> +++ b/Documentation/devicetree/bindings/media/qcom,msm8996-camss.yaml
> @@ -85,6 +85,13 @@ properties:
>      items:
>        - description: VFE0 GDSC - Video Front End, Global Distributed Switch Controller.
>        - description: VFE1 GDSC - Video Front End, Global Distributed Switch Controller.
> +      - description: CAMSS GDSC - Camera Subsystem, Global Distributed Switch Controller.
> +
> +  power-domain-names:
> +    items:
> +      - const: vfe0
> +      - const: vfe1
> +      - const: camss
>  
>    ports:
>      $ref: /schemas/graph.yaml#/properties/ports
> @@ -209,6 +216,7 @@ required:
>    - interrupts
>    - iommus
>    - power-domains
> +  - power-domain-names

Why is this now required?

Thanks,
Conor.

>    - reg
>    - reg-names
>    - vdda-supply
> @@ -326,7 +334,10 @@ examples:
>           <&vfe_smmu 3>;
>  
>        power-domains = <&mmcc VFE0_GDSC>,
> -        <&mmcc VFE1_GDSC>;
> +        <&mmcc VFE1_GDSC>,
> +        <&mmcc CAMSS_GDSC>;
> +
> +      power-domain-names = "vfe0", "vfe1", "camss";
>  
>        reg = <0x00a34000 0x1000>,
>          <0x00a00030 0x4>,
> -- 
> 2.40.1
> 

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