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From: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Date: Sat, 27 Apr 2024 07:22:36 +0530
Subject: [PATCH v12 3/6] dt-bindings: pci: qcom: Add OPP table
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Message-ID: <20240427-opp_support-v12-3-f6beb0a1f2fc@quicinc.com>
References: <20240427-opp_support-v12-0-f6beb0a1f2fc@quicinc.com>
In-Reply-To: <20240427-opp_support-v12-0-f6beb0a1f2fc@quicinc.com>
To: Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio
	<konrad.dybcio@linaro.org>,
        Rob Herring <robh@kernel.org>,
        "Krzysztof
 Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley
	<conor+dt@kernel.org>,
        Manivannan Sadhasivam
	<manivannan.sadhasivam@linaro.org>,
        Lorenzo Pieralisi
	<lpieralisi@kernel.org>,
        =?utf-8?q?Krzysztof_Wilczy=C5=84ski?=
	<kw@linux.com>,
        Bjorn Helgaas <bhelgaas@google.com>, <johan+linaro@kernel.org>,
        <bmasney@redhat.com>, <djakov@kernel.org>
CC: <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-pci@vger.kernel.org>,
        <vireshk@kernel.org>, <quic_vbadigan@quicinc.com>,
        <quic_skananth@quicinc.com>, <quic_nitegupt@quicinc.com>,
        <quic_parass@quicinc.com>, <quic_krichai@quicinc.com>,
        <krzysztof.kozlowski@linaro.org>,
        Krzysztof Kozlowski <krzk@kernel.org>

PCIe needs to choose the appropriate performance state of RPMh power
domain based on the PCIe gen speed.

Adding the Operating Performance Points table allows to adjust power
domain performance state and ICC peak bw, depending on the PCIe data
rate and link width.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
---
 Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml
index 1496d6993ab4..d8c0afaa4b19 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-sm8450.yaml
@@ -69,6 +69,10 @@ properties:
       - const: msi6
       - const: msi7
 
+  operating-points-v2: true
+  opp-table:
+    type: object
+
   resets:
     maxItems: 1
 

-- 
2.42.0