linux-kernel - Re: [PATCH v4 1/4] dt-bindings: pci: qcom: Add opp table

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Message-ID: <20230823062506.GD3737@thinkpad>
Date:   Wed, 23 Aug 2023 11:55:06 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Krishna chaitanya chundru <quic_krichai@...cinc.com>
Cc:     helgaas@...nel.org, linux-pci@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        quic_vbadigan@...cinc.com, quic_nitegupt@...cinc.com,
        quic_skananth@...cinc.com, quic_ramkri@...cinc.com,
        quic_parass@...cinc.com, krzysztof.kozlowski@...aro.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v4 1/4] dt-bindings: pci: qcom: Add opp table

On Tue, Aug 22, 2023 at 08:42:18PM +0530, Krishna chaitanya chundru wrote:
> PCIe needs to choose the appropriate performance state of RPMH power
> domain based upon the PCIe gen speed.
> 
> Adding the Operating Performance Points table allows to adjust power domain
> performance state, depending on the PCIe gen speed.
> 
> Signed-off-by: Krishna chaitanya chundru <quic_krichai@...cinc.com>

Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> index 81971be4..779339c 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
> @@ -121,6 +121,10 @@ properties:
>      description: GPIO controlled connection to WAKE# signal
>      maxItems: 1
>  
> +  operating-points-v2: true
> +  opp-table:
> +    type: object
> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.7.4
> 

-- 
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