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Message-Id: <20250820-opp_pcie-v4-6-273b8944eed0@oss.qualcomm.com>
Date: Wed, 20 Aug 2025 13:58:52 +0530
From: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
To: Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
Stephen Boyd <sboyd@...nel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kwilczynski@...nel.org>,
Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org,
Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
Subject: [PATCH v4 6/7] arm64: dts: qcom: x1e80100: Add opp-level to
indicate PCIe data rates
Add opp-level to indicate PCIe data rates and also define OPP enteries
for each link width and data rate. Append the opp level to name of the
opp node to indicate both frequency and level.
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
---
arch/arm64/boot/dts/qcom/x1e80100.dtsi | 90 ++++++++++++++++++++++++++++------
1 file changed, 74 insertions(+), 16 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index a9a7bb676c6f8ac48a2e443d28efdc8c9b5e52c0..6644017132bdd7677dcb4fccf90b1e5b36326647 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -3237,73 +3237,131 @@ pcie3_opp_table: opp-table {
compatible = "operating-points-v2";
/* GEN 1 x1 */
- opp-2500000 {
+ opp-2500000-1 {
opp-hz = /bits/ 64 <2500000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <250000 1>;
+ opp-level = <1>;
};
- /* GEN 1 x2 and GEN 2 x1 */
- opp-5000000 {
+ /* GEN 1 x2 */
+ opp-5000000-1 {
opp-hz = /bits/ 64 <5000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <500000 1>;
+ opp-level = <1>;
};
- /* GEN 1 x4 and GEN 2 x2 */
- opp-10000000 {
+ /* GEN 1 x4 */
+ opp-10000000-1 {
opp-hz = /bits/ 64 <10000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <1000000 1>;
+ opp-level = <1>;
};
- /* GEN 1 x8 and GEN 2 x4 */
- opp-20000000 {
+ /* GEN 1 x8 */
+ opp-20000000-1 {
opp-hz = /bits/ 64 <20000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <2000000 1>;
+ opp-level = <1>;
+ };
+
+ /* GEN 2 x1 */
+ opp-5000000-2 {
+ opp-hz = /bits/ 64 <5000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <500000 1>;
+ opp-level = <2>;
+ };
+
+ /* GEN 2 x2 */
+ opp-10000000-2 {
+ opp-hz = /bits/ 64 <10000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <1000000 1>;
+ opp-level = <2>;
+ };
+
+ /* GEN 2 x4 */
+ opp-20000000-2 {
+ opp-hz = /bits/ 64 <20000000>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ opp-peak-kBps = <2000000 1>;
+ opp-level = <2>;
};
/* GEN 2 x8 */
- opp-40000000 {
+ opp-40000000-2 {
opp-hz = /bits/ 64 <40000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <4000000 1>;
+ opp-level = <2>;
};
/* GEN 3 x1 */
- opp-8000000 {
+ opp-8000000-3 {
opp-hz = /bits/ 64 <8000000>;
required-opps = <&rpmhpd_opp_svs>;
opp-peak-kBps = <984500 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 3 x2 */
+ opp-16000000-3 {
+ opp-hz = /bits/ 64 <16000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ opp-peak-kBps = <1969000 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 3 x4 */
+ opp-32000000-3 {
+ opp-hz = /bits/ 64 <32000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ opp-peak-kBps = <3938000 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 3 x8 */
+ opp-64000000-3 {
+ opp-hz = /bits/ 64 <64000000>;
+ required-opps = <&rpmhpd_opp_svs>;
+ opp-peak-kBps = <7876000 1>;
+ opp-level = <3>;
};
- /* GEN 3 x2 and GEN 4 x1 */
- opp-16000000 {
+ /* GEN 4 x1 */
+ opp-16000000-4 {
opp-hz = /bits/ 64 <16000000>;
required-opps = <&rpmhpd_opp_svs>;
opp-peak-kBps = <1969000 1>;
+ opp-level = <4>;
};
- /* GEN 3 x4 and GEN 4 x2 */
- opp-32000000 {
+ /* GEN 4 x2 */
+ opp-32000000-4 {
opp-hz = /bits/ 64 <32000000>;
required-opps = <&rpmhpd_opp_svs>;
opp-peak-kBps = <3938000 1>;
+ opp-level = <4>;
};
- /* GEN 3 x8 and GEN 4 x4 */
- opp-64000000 {
+ /* GEN 4 x4 */
+ opp-64000000-4 {
opp-hz = /bits/ 64 <64000000>;
required-opps = <&rpmhpd_opp_svs>;
opp-peak-kBps = <7876000 1>;
+ opp-level = <4>;
};
/* GEN 4 x8 */
- opp-128000000 {
+ opp-128000000-4 {
opp-hz = /bits/ 64 <128000000>;
required-opps = <&rpmhpd_opp_svs>;
opp-peak-kBps = <15753000 1>;
+ opp-level = <4>;
};
};
};
--
2.34.1
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