linux-kernel - Re: [PATCH v2 2/5] dt-bindings: PCI: qcom: Add OPP table for X1E80100

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Message-ID: <tf4z475uqjenohdgqj4ltoty3j3gopxnbdhrrn6zo3ug5yuvyq@us2nysv2ggxh>
Date: Fri, 13 Sep 2024 15:30:59 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Qiang Yu <quic_qianyu@...cinc.com>
Cc: manivannan.sadhasivam@...aro.org, vkoul@...nel.org, kishon@...nel.org, 
	robh@...nel.org, andersson@...nel.org, konradybcio@...nel.org, krzk+dt@...nel.org, 
	conor+dt@...nel.org, mturquette@...libre.com, sboyd@...nel.org, abel.vesa@...aro.org, 
	quic_msarkar@...cinc.com, quic_devipriy@...cinc.com, kw@...ux.com, lpieralisi@...nel.org, 
	neil.armstrong@...aro.org, linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-clk@...r.kernel.org
Subject: Re: [PATCH v2 2/5] dt-bindings: PCI: qcom: Add OPP table for X1E80100

On Fri, Sep 13, 2024 at 01:37:21AM GMT, Qiang Yu wrote:
> Add OPP table so that PCIe is able to adjust power domain performance
> state and ICC peak bw according to PCIe gen speed and link width.
> 
> Signed-off-by: Qiang Yu <quic_qianyu@...cinc.com>
> ---
>  Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml
> index a9db0a231563..e2d6719ca54d 100644
> --- a/Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml
> @@ -70,6 +70,10 @@ properties:
>        - const: pci # PCIe core reset
>        - const: link_down # PCIe link down reset
>  
> +  operating-points-v2: true
> +  opp-table:
> +    type: object

I think these properties are generic enough and we might want to have
them for most if not all platforms. Maybe we should move them to
qcom,pcie-common.yaml?

Krzysztof, Mani, WDYT?

> +
>  allOf:
>    - $ref: qcom,pcie-common.yaml#
>  
> -- 
> 2.34.1
> 
> 
> -- 
> linux-phy mailing list
> linux-phy@...ts.infradead.org
> https://lists.infradead.org/mailman/listinfo/linux-phy

-- 
With best wishes
Dmitry

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