Re: [PATCH v5 1/5] dt-bindings: media: venus: Add an optional power domain for perf voting

From: Bjorn Andersson
Date: Wed Jul 29 2020 - 15:32:00 EST


On Wed 29 Jul 00:16 PDT 2020, Rajendra Nayak wrote:

> Venus needs to vote for the performance state of a power domain (cx)
> to be able to support DVFS. This 'cx' power domain is controlled by
> rpmh and is a common power domain (scalable) not specific to
> venus alone. This is optional in the sense that, leaving this power
> domain out does not really impact the functionality but just makes
> the platform a little less power efficient.
>
> Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

> ---
> 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..04e303b 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: cx
>
> 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..90013d4 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: cx
>
> clocks:
> maxItems: 7
> --
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