linux-kernel - [PATCH v8 4/7] dt-bindings: pci: qcom: Add opp table

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Message-ID: <20240302-opp_support-v8-4-158285b86b10@quicinc.com>
Date: Sat, 2 Mar 2024 09:29:58 +0530
From: Krishna chaitanya chundru <quic_krichai@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring
	<robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.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>, <linux-pci@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <vireshk@...nel.org>, <quic_vbadigan@...cinc.com>,
        <quic_skananth@...cinc.com>, <quic_nitegupt@...cinc.com>,
        <quic_parass@...cinc.com>,
        Krishna chaitanya chundru
	<quic_krichai@...cinc.com>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>
Subject: [PATCH v8 4/7] 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 5ad5c4cfd2a8..e1d75cabb1a9 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -127,6 +127,10 @@ properties:
     description: GPIO controlled connection to WAKE# signal
     maxItems: 1
 
+  operating-points-v2: true
+  opp-table:
+    type: object
+
 required:
   - compatible
   - reg

-- 
2.42.0