Commit 7f2fc184 authored by Balsam CHIHI's avatar Balsam CHIHI Committed by Matthias Brugger
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arm64: dts: mediatek: mt8195: Add temperature mitigation threshold 



The mt8195 SoC has several hotspots around the CPUs. Specify the
targeted temperature threshold when to apply the mitigation and define
the associated cooling devices.

Signed-off-by: default avatarBalsam CHIHI <bchihi@baylibre.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230209105628.50294-7-bchihi@baylibre.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent fd1c6f13

arch/arm64/boot/dts/mediatek/mt8195.dtsi

+153 −16
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <dt-bindings/pinctrl/mt8195-pinfunc.h>

#include <dt-bindings/power/mt8195-power.h>

#include <dt-bindings/reset/mt8195-resets.h>

#include <dt-bindings/thermal/thermal.h>

#include <dt-bindings/thermal/mediatek,lvts-thermal.h>



/ {
@@ -3002,107 +3003,243 @@ 


	thermal_zones: thermal-zones {

		cpu0-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU0>;



			trips {

				cpu0_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu0_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu0_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>;

				};

			};

		};



		cpu1-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU1>;



			trips {

				cpu1_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu1_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu1_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>;

				};

			};

		};



		cpu2-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU2>;



			trips {

				cpu2_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu2_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu2_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>;

				};

			};

		};



		cpu3-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU3>;



			trips {

				cpu3_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu3_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu3_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>;

				};

			};

		};



		cpu4-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU0>;



			trips {

				cpu4_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu4_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu4_alert>;

					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>;

				};

			};

		};



		cpu5-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU1>;



			trips {

				cpu5_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu5_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu5_alert>;

					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>;

				};

			};

		};



		cpu6-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU2>;



			trips {

				cpu6_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu6_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu6_alert>;

					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>;

				};

			};

		};



		cpu7-thermal {

			polling-delay = <0>;

			polling-delay-passive = <0>;

			polling-delay = <1000>;

			polling-delay-passive = <250>;

			thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU3>;



			trips {

				cpu7_alert: trip-alert {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu7_crit: trip-crit {

					temperature = <100000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu7_alert>;

					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>;

				};

			};

		};

	};

};