linux-kernel - [PATCH 2/2] arm64: dts: qcom: qcs8300: Add cpufreq scaling node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250313-qcs8300-cpufreq-scaling-v1-2-d4cd3bd9c018@quicinc.com>
Date: Thu, 13 Mar 2025 11:33:40 +0530
From: Imran Shaik <quic_imrashai@...cinc.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar
	<viresh.kumar@...aro.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Manivannan
 Sadhasivam" <manivannan.sadhasivam@...aro.org>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
CC: Ajit Pandey <quic_ajipan@...cinc.com>, Taniya Das <quic_tdas@...cinc.com>,
        Jagadeesh Kona <quic_jkona@...cinc.com>,
        Satya Priya Kakitapalli
	<quic_skakitap@...cinc.com>,
        <linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        Imran Shaik <quic_imrashai@...cinc.com>
Subject: [PATCH 2/2] arm64: dts: qcom: qcs8300: Add cpufreq scaling node

Add cpufreq-hw node to support cpufreq scaling on QCS8300.

Signed-off-by: Imran Shaik <quic_imrashai@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qcs8300.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
index cdd412706b5b..eb6b01683d1d 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
@@ -52,6 +52,7 @@ cpu0: cpu@0 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1946>;
 			dynamic-power-coefficient = <472>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 
 			l2_0: l2-cache {
 				compatible = "cache";
@@ -71,6 +72,7 @@ cpu1: cpu@100 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1946>;
 			dynamic-power-coefficient = <472>;
+			qcom,freq-domain = <&cpufreq_hw 0>;
 
 			l2_1: l2-cache {
 				compatible = "cache";
@@ -90,6 +92,7 @@ cpu2: cpu@200 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1946>;
 			dynamic-power-coefficient = <507>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 
 			l2_2: l2-cache {
 				compatible = "cache";
@@ -109,6 +112,7 @@ cpu3: cpu@300 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1946>;
 			dynamic-power-coefficient = <507>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 
 			l2_3: l2-cache {
 				compatible = "cache";
@@ -128,6 +132,7 @@ cpu4: cpu@...00 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 2>;
 
 			l2_4: l2-cache {
 				compatible = "cache";
@@ -147,6 +152,7 @@ cpu5: cpu@...00 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 2>;
 
 			l2_5: l2-cache {
 				compatible = "cache";
@@ -166,6 +172,7 @@ cpu6: cpu@...00 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 2>;
 
 			l2_6: l2-cache {
 				compatible = "cache";
@@ -185,6 +192,7 @@ cpu7: cpu@...00 {
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 2>;
 
 			l2_7: l2-cache {
 				compatible = "cache";
@@ -5235,6 +5243,24 @@ rpmhpd_opp_turbo_l1: opp-9 {
 			};
 		};
 
+		cpufreq_hw: cpufreq@...91000 {
+			compatible = "qcom,qcs8300-cpufreq-epss", "qcom,cpufreq-epss";
+			reg = <0x0 0x18591000 0x0 0x1000>,
+			      <0x0 0x18594000 0x0 0x1000>,
+			      <0x0 0x18593000 0x0 0x1000>;
+			reg-names = "freq-domain0", "freq-domain1", "freq-domain2";
+
+			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "dcvsh-irq-0", "dcvsh-irq-1", "dcvsh-irq-2";
+
+			clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_GPLL0>;
+			clock-names = "xo", "alternate";
+
+			#freq-domain-cells = <1>;
+		};
+
 		remoteproc_gpdsp: remoteproc@...00000 {
 			compatible = "qcom,qcs8300-gpdsp-pas", "qcom,sa8775p-gpdsp0-pas";
 			reg = <0x0 0x20c00000 0x0 0x10000>;

-- 
2.25.1