[PATCH v7 9/9] arm64: dts: qcom: hamoa: Enable CDSP cooling

From: Dipa Ramesh Mantre <[email protected]>

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

Set up CDSP cooling by throttling the cdsp, when it reaches 95°C.

Add polling-delay-passive so the governor periodically evaluates
the zone during passive cooling and steps up cooling levels when
temperature stabilizes below the next trip.

Signed-off-by: Dipa Ramesh Mantre <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Gaurav Kohli <[email protected]>
---
 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 32 +++++++++++++++
 arch/arm64/boot/dts/qcom/hamoa.dtsi        | 63 ++++++++++++++++++++++++++++++
 2 files changed, 95 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
index 9fa86bb6438e..a146be1cb5fb 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -1684,4 +1684,36 @@ trip-point0 {
 			};
 		};
 	};
+
+	nsp0-thermal {
+		trips {
+			trip-point1 {
+				temperature = <105000>;
+			};
+		};
+	};
+
+	nsp1-thermal {
+		trips {
+			trip-point1 {
+				temperature = <105000>;
+			};
+		};
+	};
+
+	nsp2-thermal {
+		trips {
+			trip-point1 {
+				temperature = <105000>;
+			};
+		};
+	};
+
+	nsp3-thermal {
+		trips {
+			trip-point1 {
+				temperature = <105000>;
+			};
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
index 09527dcf9576..ba453c8ca80d 100644
--- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
@@ -23,6 +23,7 @@
 #include <dt-bindings/soc/qcom,gpr.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
 #include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
+#include <dt-bindings/thermal/qcom,pas.h>
 #include <dt-bindings/thermal/thermal.h>
 
 / {
@@ -8971,6 +8972,8 @@ remoteproc_cdsp: remoteproc@32300000 {
 
 			status = "disabled";
 
+			#cooling-cells = <3>;
+
 			glink-edge {
 				interrupts-extended = <&ipcc IPCC_CLIENT_CDSP
 							     IPCC_MPROC_SIGNAL_GLINK_QMP
@@ -9558,6 +9561,7 @@ aoss0-critical {
 		};
 
 		thermal_nsp0: nsp0-thermal {
+			polling-delay-passive = <200>;
 			thermal-sensors = <&tsens3 1>;
 
 			trips {
@@ -9567,15 +9571,30 @@ trip-point0 {
 					type = "hot";
 				};
 
+				nsp0_alert0: trip-point1 {
+					temperature = <95000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				nsp0-critical {
 					temperature = <115000>;
 					hysteresis = <1000>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp0_alert0>;
+					cooling-device = <&remoteproc_cdsp QCOM_TMD_CDSP_SW
+							 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		thermal_nsp1: nsp1-thermal {
+			polling-delay-passive = <200>;
 			thermal-sensors = <&tsens3 2>;
 
 			trips {
@@ -9585,15 +9604,30 @@ trip-point0 {
 					type = "hot";
 				};
 
+				nsp1_alert0: trip-point1 {
+					temperature = <95000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				nsp1-critical {
 					temperature = <115000>;
 					hysteresis = <1000>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp1_alert0>;
+					cooling-device = <&remoteproc_cdsp QCOM_TMD_CDSP_SW
+							 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		thermal_nsp2: nsp2-thermal {
+			polling-delay-passive = <200>;
 			thermal-sensors = <&tsens3 3>;
 
 			trips {
@@ -9603,15 +9637,30 @@ trip-point0 {
 					type = "hot";
 				};
 
+				nsp2_alert0: trip-point1 {
+					temperature = <95000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				nsp2-critical {
 					temperature = <115000>;
 					hysteresis = <1000>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp2_alert0>;
+					cooling-device = <&remoteproc_cdsp QCOM_TMD_CDSP_SW
+							 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		thermal_nsp3: nsp3-thermal {
+			polling-delay-passive = <200>;
 			thermal-sensors = <&tsens3 4>;
 
 			trips {
@@ -9621,12 +9670,26 @@ trip-point0 {
 					type = "hot";
 				};
 
+				nsp3_alert0: trip-point1 {
+					temperature = <95000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				nsp3-critical {
 					temperature = <115000>;
 					hysteresis = <1000>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp3_alert0>;
+					cooling-device = <&remoteproc_cdsp QCOM_TMD_CDSP_SW
+							 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		thermal_gpuss_0: gpuss-0-thermal {

-- 
2.34.1