[PATCH v6 9/9] arm64: dts: qcom: hamoa: Enable CDSP cooling

[Gaurav Kohli]

From: Dipa Ramesh Mantre <dipa.mantre@xxxxxxxxxxxxxxxx>

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

Set up CDSP cooling for both instances 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 <dipa.mantre@xxxxxxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
Signed-off-by: Gaurav Kohli <gaurav.kohli@xxxxxxxxxxxxxxxx>
---
 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