Thread (53 messages) 53 messages, 7 authors, 2026-03-23
STALE95d
Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 5/8] arm64: dts: qcom: lemans: Enable CDSP cooling

From: Gaurav Kohli <hidden>
Date: 2026-01-27 15:58:08
Also in: linux-arm-msm, linux-pm, lkml
Subsystem: arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers: Bjorn Andersson, Konrad Dybcio, Linus Torvalds 

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

Set up CDSP cooling by throttling the cdsp when it reaches 105°C.

Signed-off-by: Gaurav Kohli <redacted>
---
 arch/arm64/boot/dts/qcom/lemans.dtsi | 138 ++++++++++++++++++++++++---
 1 file changed, 126 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 808827b83553..c747dd534caa 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -7281,6 +7281,15 @@ compute-cb@11 {
 					};
 				};
 			};
+
+			cooling {
+				compatible = "qcom,qmi-cooling-cdsp";
+
+				cdsp_tmd0: cdsp-tmd0 {
+					label = "cdsp_sw";
+					#cooling-cells = <2>;
+				};
+			};
 		};
 
 		nspb_noc: interconnect@2a0c0000 {
@@ -7444,6 +7453,15 @@ compute-cb@13 {
 					};
 				};
 			};
+
+			cooling {
+				compatible = "qcom,qmi-cooling-cdsp1";
+
+				cdsp_tmd1: cdsp-tmd1 {
+					label = "cdsp_sw";
+					#cooling-cells = <2>;
+				};
+			};
 		};
 
 		remoteproc_adsp: remoteproc@30000000 {
@@ -8168,7 +8186,7 @@ nsp-0-0-0-thermal {
 			thermal-sensors = <&tsens2 5>;
 
 			trips {
-				trip-point0 {
+				nsp_0_0_0_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8180,6 +8198,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_0_0_0_alert0>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-0-1-0-thermal {
@@ -8188,7 +8214,7 @@ nsp-0-1-0-thermal {
 			thermal-sensors = <&tsens2 6>;
 
 			trips {
-				trip-point0 {
+				nsp_0_1_0_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8200,6 +8226,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_0_1_0_alert0>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-0-2-0-thermal {
@@ -8208,7 +8242,7 @@ nsp-0-2-0-thermal {
 			thermal-sensors = <&tsens2 7>;
 
 			trips {
-				trip-point0 {
+				nsp_0_2_0_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8220,6 +8254,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_0_2_0_alert0>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-1-0-0-thermal {
@@ -8228,7 +8270,7 @@ nsp-1-0-0-thermal {
 			thermal-sensors = <&tsens2 8>;
 
 			trips {
-				trip-point0 {
+				nsp_1_0_0_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8240,6 +8282,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_1_0_0_alert0>;
+					cooling-device = <&cdsp_tmd1
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-1-1-0-thermal {
@@ -8248,7 +8298,7 @@ nsp-1-1-0-thermal {
 			thermal-sensors = <&tsens2 9>;
 
 			trips {
-				trip-point0 {
+				nsp_1_1_0_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8260,6 +8310,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_1_1_0_alert0>;
+					cooling-device = <&cdsp_tmd1
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-1-2-0-thermal {
@@ -8268,7 +8326,7 @@ nsp-1-2-0-thermal {
 			thermal-sensors = <&tsens2 10>;
 
 			trips {
-				trip-point0 {
+				nsp_1_2_0_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8280,6 +8338,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_1_2_0_alert0>;
+					cooling-device = <&cdsp_tmd1
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		ddrss-0-thermal {
@@ -8422,7 +8488,7 @@ nsp-0-0-1-thermal {
 			thermal-sensors = <&tsens3 5>;
 
 			trips {
-				trip-point0 {
+				nsp_0_0_1_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8434,6 +8500,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_0_0_1_alert0>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-0-1-1-thermal {
@@ -8442,7 +8516,7 @@ nsp-0-1-1-thermal {
 			thermal-sensors = <&tsens3 6>;
 
 			trips {
-				trip-point0 {
+				nsp_0_1_1_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8454,6 +8528,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_0_1_1_alert0>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-0-2-1-thermal {
@@ -8462,7 +8544,7 @@ nsp-0-2-1-thermal {
 			thermal-sensors = <&tsens3 7>;
 
 			trips {
-				trip-point0 {
+				nsp_0_2_1_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8474,6 +8556,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_0_2_1_alert0>;
+					cooling-device = <&cdsp_tmd0
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-1-0-1-thermal {
@@ -8482,7 +8572,7 @@ nsp-1-0-1-thermal {
 			thermal-sensors = <&tsens3 8>;
 
 			trips {
-				trip-point0 {
+				nsp_1_0_1_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8494,6 +8584,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_1_0_1_alert0>;
+					cooling-device = <&cdsp_tmd1
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-1-1-1-thermal {
@@ -8502,7 +8600,7 @@ nsp-1-1-1-thermal {
 			thermal-sensors = <&tsens3 9>;
 
 			trips {
-				trip-point0 {
+				nsp_1_1_1_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8514,6 +8612,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_1_1_1_alert0>;
+					cooling-device = <&cdsp_tmd1
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		nsp-1-2-1-thermal {
@@ -8522,7 +8628,7 @@ nsp-1-2-1-thermal {
 			thermal-sensors = <&tsens3 10>;
 
 			trips {
-				trip-point0 {
+				nsp_1_2_1_alert0: trip-point0 {
 					temperature = <105000>;
 					hysteresis = <5000>;
 					type = "passive";
@@ -8534,6 +8640,14 @@ trip-point1 {
 					type = "passive";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_1_2_1_alert0>;
+					cooling-device = <&cdsp_tmd1
+							THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		ddrss-1-thermal {
-- 
2.34.1
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