Unverified Commit 9f8a93b7 authored by Ondrej Jirman's avatar Ondrej Jirman Committed by Maxime Ripard
Browse files

arm64: dts: allwinner: h6: Add thermal trip points/cooling map 



This enables passive cooling by down-regulating CPU voltage
and frequency.

Signed-off-by: default avatarOndrej Jirman <megous@megous.com>
Signed-off-by: default avatarClément Péron <peron.clem@gmail.com>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
parent 8a3a9535

arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi

+28 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
			enable-method = "psci";

			clocks = <&ccu CLK_CPUX>;

			clock-latency-ns = <244144>; /* 8 32k periods */

			#cooling-cells = <2>;

		};



		cpu1: cpu@1 {
@@ -36,6 +37,7 @@ 
			enable-method = "psci";

			clocks = <&ccu CLK_CPUX>;

			clock-latency-ns = <244144>; /* 8 32k periods */

			#cooling-cells = <2>;

		};



		cpu2: cpu@2 {
@@ -45,6 +47,7 @@ 
			enable-method = "psci";

			clocks = <&ccu CLK_CPUX>;

			clock-latency-ns = <244144>; /* 8 32k periods */

			#cooling-cells = <2>;

		};



		cpu3: cpu@3 {
@@ -54,6 +57,7 @@ 
			enable-method = "psci";

			clocks = <&ccu CLK_CPUX>;

			clock-latency-ns = <244144>; /* 8 32k periods */

			#cooling-cells = <2>;

		};

	};
@@ -964,6 +968,30 @@ 
			polling-delay-passive = <0>;

			polling-delay = <0>;

			thermal-sensors = <&ths 0>;



			trips {

				cpu_alert: cpu-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu-crit {

					temperature = <100000>;

					hysteresis = <0>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu_alert>;

					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>;

				};

			};

		};



		gpu-thermal {

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