linux-kernel - [PATCH v2 3/3] arm64: dts: qcom: qcm2290: Add LMH node

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Date: Sat, 09 Mar 2024 14:15:04 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>, 
 Lukasz Luba <lukasz.luba@....com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thara Gopinath <thara.gopinath@...il.com>, Amit Kucheria <amitk@...nel.org>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, 
 Loic Poulain <loic.poulain@...aro.org>
Subject: [PATCH v2 3/3] arm64: dts: qcom: qcm2290: Add LMH node

From: Loic Poulain <loic.poulain@...aro.org>

Add a node for the Limits Management Hardware to ensure it can be
configured by the operating system.

Signed-off-by: Loic Poulain <loic.poulain@...aro.org>
[Konrad: add commit msg, rebase]
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/qcm2290.dtsi | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/qcm2290.dtsi b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
index 89beac833d43..1aacad50e7fc 100644
--- a/arch/arm64/boot/dts/qcom/qcm2290.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
@@ -1858,7 +1858,7 @@ cpufreq_hw: cpufreq@...1000 {
 			compatible = "qcom,qcm2290-cpufreq-hw", "qcom,cpufreq-hw";
 			reg = <0x0 0x0f521000 0x0 0x1000>;
 			reg-names = "freq-domain0";
-			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&lmh_cluster 0>;
 			interrupt-names = "dcvsh-irq-0";
 			clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>, <&gcc GPLL0>;
 			clock-names = "xo", "alternate";
@@ -1866,6 +1866,18 @@ cpufreq_hw: cpufreq@...1000 {
 			#freq-domain-cells = <1>;
 			#clock-cells = <1>;
 		};
+
+		lmh_cluster: lmh@...0800 {
+			compatible = "qcom,qcm2290-lmh", "qcom,sm8150-lmh";
+			reg = <0x0 0x0f550800 0x0 0x400>;
+			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			cpus = <&CPU0>;
+			qcom,lmh-temp-arm-millicelsius = <65000>;
+			qcom,lmh-temp-low-millicelsius = <94500>;
+			qcom,lmh-temp-high-millicelsius = <95000>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
 	};

 	thermal-zones {

-- 
2.44.0