From: Krishna chaitanya chundru <quic_krichai@quicinc.com>
To: "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Bjorn Andersson" <andersson@kernel.org>
Cc: <quic_vbadigan@quicinc.com>, <quic_skananth@quicinc.com>,
<quic_nitegupt@quicinc.com>, <linux-arm-msm@vger.kernel.org>,
<linux-pci@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>,
Krishna chaitanya chundru <quic_krichai@quicinc.com>,
Krzysztof Kozlowski <krzk@kernel.org>
Subject: [PATCH v15 2/4] dt-bindings: pci: qcom: Add OPP table
Date: Wed, 19 Jun 2024 20:41:11 +0530 [thread overview]
Message-ID: <20240619-opp_support-v15-2-aa769a2173a3@quicinc.com> (raw)
In-Reply-To: <20240619-opp_support-v15-0-aa769a2173a3@quicinc.com>
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
next prev parent reply other threads:[~2024-06-19 15:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-19 15:11 [PATCH v15 0/4] PCI: qcom: Add support for OPP Krishna chaitanya chundru
2024-06-19 15:11 ` [PATCH v15 1/4] PCI: qcom: Add ICC bandwidth vote for CPU to PCIe path Krishna chaitanya chundru
2024-06-19 15:11 ` Krishna chaitanya chundru [this message]
2024-06-28 20:14 ` [PATCH v15 2/4] dt-bindings: pci: qcom: Add OPP table Krzysztof Wilczyński
2024-06-19 15:11 ` [PATCH v15 3/4] PCI: Bring the PCIe speed to MBps logic to new pcie_dev_speed_mbps() Krishna chaitanya chundru
2024-06-19 15:11 ` [PATCH v15 4/4] PCI: qcom: Add OPP support to scale performance Krishna chaitanya chundru
2024-06-28 21:00 ` [PATCH v15 0/4] PCI: qcom: Add support for OPP Krzysztof Wilczyński
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