linux-kernel - [PATCH v2 7/8] arm64: dts: qcom: kodiak: Enable CDSP cooling

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Message-Id: <20260127155722.2797783-8-gaurav.kohli@oss.qualcomm.com>
Date: Tue, 27 Jan 2026 21:27:21 +0530
From: Gaurav Kohli <gaurav.kohli@....qualcomm.com>
To: andersson@...nel.org, mathieu.poirier@...aro.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, rui.zhang@...el.com,
        lukasz.luba@....com, konradybcio@...nel.org, mani@...nel.org,
        casey.connolly@...aro.org, amit.kucheria@....qualcomm.com
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        gaurav.kohli@....qualcomm.com, manaf.pallikunhi@....qualcomm.com
Subject: [PATCH v2 7/8] arm64: dts: qcom: kodiak: Enable CDSP cooling

Unlike the CPU, the CDSP does not throttle its speed automatically
when it reaches high temperatures in kodiak.

Set up CDSP cooling by throttling the cdsp when it reaches 100°C.

Signed-off-by: Gaurav Kohli <gaurav.kohli@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/kodiak.dtsi | 37 ++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/kodiak.dtsi b/arch/arm64/boot/dts/qcom/kodiak.dtsi
index 6079e67ea829..3c79572bf55f 100644
--- a/arch/arm64/boot/dts/qcom/kodiak.dtsi
+++ b/arch/arm64/boot/dts/qcom/kodiak.dtsi
@@ -4793,6 +4793,15 @@ compute-cb@14 {
 					};
 				};
 			};
+
+			cooling {
+				compatible = "qcom,qmi-cooling-cdsp";
+
+				cdsp_tmd0: cdsp-tmd0 {
+					label = "cdsp_sw";
+					#cooling-cells = <2>;
+				};
+			};
 		};
 
 		usb_1: usb@...0000 {
@@ -7600,12 +7609,26 @@ nspss0_alert0: trip-point0 {
 					type = "hot";
 				};
 
+				nspss0_alert1: trip-point1 {
+					temperature = <100000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				nspss0_crit: nspss0-crit {
 					temperature = <110000>;
 					hysteresis = <0>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nspss0_alert1>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nspss1-thermal {
@@ -7618,12 +7641,26 @@ nspss1_alert0: trip-point0 {
 					type = "hot";
 				};
 
+				nspss1_alert1: trip-point1 {
+					temperature = <100000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				nspss1_crit: nspss1-crit {
 					temperature = <110000>;
 					hysteresis = <0>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nspss1_alert1>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		video-thermal {
-- 
2.34.1