From 2ed8ee662660577a701e92917dbc65ca3553507c Mon Sep 17 00:00:00 2001
From: Imran Shaik <quic_imrashai@quicinc.com>
Date: Wed, 30 Apr 2025 10:29:12 +0530
Subject: [PATCH] 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@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250430-qcs8300-cpufreq-scaling-v2-1-ee41566b8c56@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/qcs8300.dtsi | 30 +++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
index 037cd366a09b..9bc6cf9a3495 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
@@ -52,6 +52,7 @@
 			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 @@
 			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 @@
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1946>;
 			dynamic-power-coefficient = <507>;
+			qcom,freq-domain = <&cpufreq_hw 2>;
 
 			l2_2: l2-cache {
 				compatible = "cache";
@@ -109,6 +112,7 @@
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1946>;
 			dynamic-power-coefficient = <507>;
+			qcom,freq-domain = <&cpufreq_hw 2>;
 
 			l2_3: l2-cache {
 				compatible = "cache";
@@ -128,6 +132,7 @@
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 
 			l2_4: l2-cache {
 				compatible = "cache";
@@ -147,6 +152,7 @@
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 
 			l2_5: l2-cache {
 				compatible = "cache";
@@ -166,6 +172,7 @@
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 
 			l2_6: l2-cache {
 				compatible = "cache";
@@ -185,6 +192,7 @@
 			power-domain-names = "psci";
 			capacity-dmips-mhz = <1024>;
 			dynamic-power-coefficient = <100>;
+			qcom,freq-domain = <&cpufreq_hw 1>;
 
 			l2_7: l2-cache {
 				compatible = "cache";
@@ -5279,6 +5287,28 @@
 			};
 		};
 
+		cpufreq_hw: cpufreq@18591000 {
+			compatible = "qcom,qcs8300-cpufreq-epss", "qcom,cpufreq-epss";
+			reg = <0x0 0x18591000 0x0 0x1000>,
+			      <0x0 0x18593000 0x0 0x1000>,
+			      <0x0 0x18594000 0x0 0x1000>;
+			reg-names = "freq-domain0",
+				    "freq-domain1",
+				    "freq-domain2";
+
+			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 86 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@20c00000 {
 			compatible = "qcom,qcs8300-gpdsp-pas", "qcom,sa8775p-gpdsp0-pas";
 			reg = <0x0 0x20c00000 0x0 0x10000>;
-- 
2.50.1