linux-kernel - [PATCH v6 4/6] dt-bindings: pci: qcom: Add opp table

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Message-ID: <20240112-opp_support-v6-4-77bbf7d0cc37@quicinc.com>
Date: Fri, 12 Jan 2024 19:52:03 +0530
From: Krishna chaitanya chundru <quic_krichai@...cinc.com>
To: 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>,
        Rob Herring <robh+dt@...nel.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        Brian Masney <bmasney@...hat.com>, Georgi Djakov <djakov@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <vireshk@...nel.org>,
        <quic_vbadigan@...cinc.com>, <quic_skananth@...cinc.com>,
        <quic_nitegupt@...cinc.com>, <linux-pci@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Krishna
 chaitanya chundru" <quic_krichai@...cinc.com>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>,
        Manivannan Sadhasivam <mani@...nel.org>
Subject: [PATCH v6 4/6] dt-bindings: pci: qcom: Add opp table

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 and icc peak bw, depending on the PCIe gen
speed and width.

Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Krishna chaitanya chundru <quic_krichai@...cinc.com>
---
 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 bc28669f6fa0..a37b2ef7dbfc 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -122,6 +122,10 @@ properties:
     description: GPIO controlled connection to WAKE# signal
     maxItems: 1
 
+  operating-points-v2: true
+  opp-table:
+    type: object
+
 required:
   - compatible
   - reg

-- 
2.42.0