From: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
To: "Viresh Kumar" <vireshk@kernel.org>, "Nishanth Menon" <nm@ti.com>,
"Stephen Boyd" <sboyd@kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konradybcio@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org,
devicetree@vger.kernel.org,
Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Subject: [PATCH v2 2/3] arm64: dts: qcom: sm8450: Add opp-level to indicate PCIe data rates
Date: Mon, 18 Aug 2025 13:52:54 +0530 [thread overview]
Message-ID: <20250818-opp_pcie-v2-2-071524d98967@oss.qualcomm.com> (raw)
In-Reply-To: <20250818-opp_pcie-v2-0-071524d98967@oss.qualcomm.com>
Add opp-level to indicate PCIe data rates and also define OPP enteries
for each link width and data rate.
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/sm8450.dtsi | 41 +++++++++++++++++++++++++++++-------
1 file changed, 33 insertions(+), 8 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 33574ad706b915136546c7f92c7cd0b8a0d62b7e..d7f8706ca4949e253a4102474c92b393a345262f 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -2052,6 +2052,7 @@ opp-2500000 {
opp-hz = /bits/ 64 <2500000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <250000 1>;
+ opp-level = <1>;
};
/* GEN 2 x1 */
@@ -2059,6 +2060,7 @@ opp-5000000 {
opp-hz = /bits/ 64 <5000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <500000 1>;
+ opp-level = <2>;
};
/* GEN 3 x1 */
@@ -2066,6 +2068,7 @@ opp-8000000 {
opp-hz = /bits/ 64 <8000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <984500 1>;
+ opp-level = <3>;
};
};
@@ -2210,45 +2213,67 @@ pcie1_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 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 {
+ opp-10000000-2 {
opp-hz = /bits/ 64 <10000000>;
required-opps = <&rpmhpd_opp_low_svs>;
opp-peak-kBps = <1000000 1>;
+ opp-level = <2>;
};
/* GEN 3 x1 */
- opp-8000000 {
+ opp-8000000-3 {
opp-hz = /bits/ 64 <8000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <984500 1>;
+ opp-level = <3>;
+ };
+
+ /* GEN 3 x2 */
+ opp-16000000-3 {
+ opp-hz = /bits/ 64 <16000000>;
+ required-opps = <&rpmhpd_opp_nom>;
+ opp-peak-kBps = <1969000 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_nom>;
opp-peak-kBps = <1969000 1>;
+ opp-level = <4>;
};
/* GEN 4 x2 */
- opp-32000000 {
+ opp-32000000-4 {
opp-hz = /bits/ 64 <32000000>;
required-opps = <&rpmhpd_opp_nom>;
opp-peak-kBps = <3938000 1>;
+ opp-level = <4>;
};
};
--
2.34.1
next prev parent reply other threads:[~2025-08-18 8:23 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-18 8:22 [PATCH v2 0/3] PM/OPP: Support to match OPP based on both frequency and level Krishna Chaitanya Chundru
2025-08-18 8:22 ` [PATCH v2 1/3] " Krishna Chaitanya Chundru
2025-08-18 8:55 ` Viresh Kumar
2025-08-18 8:57 ` Viresh Kumar
2025-08-18 9:04 ` Krishna Chaitanya Chundru
2025-08-18 23:46 ` kernel test robot
2025-08-18 23:46 ` kernel test robot
2025-08-18 8:22 ` Krishna Chaitanya Chundru [this message]
2025-08-18 9:02 ` [PATCH v2 2/3] arm64: dts: qcom: sm8450: Add opp-level to indicate PCIe data rates Viresh Kumar
2025-08-18 9:07 ` Krishna Chaitanya Chundru
2025-08-18 9:13 ` Viresh Kumar
2025-08-18 8:22 ` [PATCH v2 3/3] PCI: qcom: Use frequency and level based OPP lookup Krishna Chaitanya Chundru
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