linux-kernel - Re: [PATCH v2 1/4] dt-bindings: media: venus: Add an optional power domain for perf voting

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Date:   Thu, 16 Jul 2020 16:43:10 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>
Cc:     stanimir.varbanov@...aro.org, robh+dt@...nel.org,
        agross@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, mka@...omium.org
Subject: Re: [PATCH v2 1/4] dt-bindings: media: venus: Add an optional power
 domain for perf voting

On Wed 15 Jul 22:42 PDT 2020, Rajendra Nayak wrote:

> Add an optional power domain which when specified can be used for
> setting the performance state of Venus.
> 
> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
> ---
> This is a resend of https://lore.kernel.org/patchwork/patch/1241077/
> 
>  Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml    | 6 +++++-
>  Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml | 6 +++++-
>  2 files changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
> index 55f2d67..1e8675b 100644
> --- a/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
> +++ b/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
> @@ -25,12 +25,16 @@ properties:
>      maxItems: 1
>  
>    power-domains:
> -    maxItems: 2
> +    minItems: 2
> +    maxItems: 3
>  
>    power-domain-names:
> +    minItems: 2
> +    maxItems: 3
>      items:
>        - const: venus
>        - const: vcodec0
> +      - const: opp-pd

In line with Rob's question, the "opp power-domain" seems like a
software construct, wouldn't this be better named e.g. "cx"?

Regards,
Bjorn

>  
>    clocks:
>      maxItems: 5
> diff --git a/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml b/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
> index 157dff8..437286d 100644
> --- a/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
> +++ b/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
> @@ -25,13 +25,17 @@ properties:
>      maxItems: 1
>  
>    power-domains:
> -    maxItems: 3
> +    minItems: 3
> +    maxItems: 4
>  
>    power-domain-names:
> +    minItems: 3
> +    maxItems: 4
>      items:
>        - const: venus
>        - const: vcodec0
>        - const: vcodec1
> +      - const: opp-pd
>  
>    clocks:
>      maxItems: 7
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
>