arm64: dts: sdm845: Bind CPU thermal throttling to cluster sensors

The previous commit removed per-CPU thermal zones. Despite having a thermal
sensor per-CPU, the trip points in those zones would affect *several* CPUs:
this system doesn't have per-CPU DVFS, so one cannot change the frequency
of an individual CPU, but rather a group thereof (i.e. the frequency
domain).

Furthermore, the (existing) CPU cluster thermal zones have a "hot" trip
point set at the same trip temperature as the lower per-CPU thermal
zones. AIUI this is actually useless, as the struct thermal_zone_device_ops
provided by thermal_of.c doesn't contain a .notify() callback, so no action
will (and can) be taken as a consequence of hitting that trip point.

Copy the previous per-CPU trip points / cooling maps into the CPU cluster
thermal zones. This should effectively lead to a similar CPU thermal
management as before with less overhead.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>

arch/arm64/boot/dts/qcom/sdm845.dtsi

@@ -4968,7 +4968,12 @@
 				cluster0_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
+				};
+				cluster0_alert1: trip-point1 {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "passive";
 				};
 				cluster0_crit: cluster0_crit {
 					temperature = <110000>;
@@ -4976,6 +4981,24 @@
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cluster0_alert0>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+				map1 {
+					trip = <&cluster0_alert1>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 		};
 
 		cluster1-thermal {
@@ -4988,7 +5011,12 @@
 				cluster1_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
-					type = "hot";
+					type = "passive";
+				};
+				cluster1_alert1: trip-point1 {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "passive";
 				};
 				cluster1_crit: cluster1_crit {
 					temperature = <110000>;
@@ -4996,6 +5024,24 @@
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cluster1_alert0>;
+					cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+				map1 {
+					trip = <&cluster1_alert1>;
+					cooling-device = <&CPU4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 		};
 
 		gpu-thermal-top {