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From: Alexandre Bailon <abailon@baylibre.com>
To: rafael@kernel.org,
	daniel.lezcano@linaro.org,
	robh+dt@kernel.org,
	krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org
Cc: rui.zhang@intel.com,
	lukasz.luba@arm.com,
	linux-pm@vger.kernel.org,
	devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Alexandre Bailon <abailon@baylibre.com>
Subject: [PATCH v4 4/4] ARM64: mt8195: Use thermal aggregation for big and little cpu
Date: Thu, 13 Jun 2024 15:24:10 +0200
Message-ID: <20240613132410.161663-5-abailon@baylibre.com>
In-Reply-To: <20240613132410.161663-1-abailon@baylibre.com>
References: <20240613132410.161663-1-abailon@baylibre.com>
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This uses the thermal aggregation for the mt8195 to get the maximal
temperature of big and little cpu clusters.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
 arch/arm64/boot/dts/mediatek/mt8195.dtsi | 210 +++--------------------
 1 file changed, 25 insertions(+), 185 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index 5d8b68f86ce4..90778c609ceb 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -3600,50 +3600,30 @@ dp_tx: dp-tx@1c600000 {
 	};
 
 	thermal_zones: thermal-zones {
-		cpu0-thermal {
+		cpu-little {
 			polling-delay = <1000>;
-			polling-delay-passive = <250>;
-			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU0>;
+			polling-delay-passive = <100>;
+			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU0>,
+					  <&lvts_mcu MT8195_MCU_LITTLE_CPU1>,
+					  <&lvts_mcu MT8195_MCU_LITTLE_CPU2>,
+					  <&lvts_mcu MT8195_MCU_LITTLE_CPU3>;
+			sustainable-power = <1500>;
 
 			trips {
-				cpu0_alert: trip-alert {
-					temperature = <85000>;
+				cpu_little_threshold: trip-point {
+					temperature = <68000>;
 					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 = <1000>;
-			polling-delay-passive = <250>;
-			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU1>;
-
-			trips {
-				cpu1_alert: trip-alert {
+				cpu_little_target: target {
 					temperature = <85000>;
 					hysteresis = <2000>;
 					type = "passive";
 				};
 
-				cpu1_crit: trip-crit {
-					temperature = <100000>;
+				cpu_little_soc_max_crit: soc-max-crit {
+					temperature = <115000>;
 					hysteresis = <2000>;
 					type = "critical";
 				};
@@ -3651,7 +3631,7 @@ cpu1_crit: trip-crit {
 
 			cooling-maps {
 				map0 {
-					trip = <&cpu1_alert>;
+					trip = <&cpu_little_target>;
 					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
 								<&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
 								<&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
@@ -3660,170 +3640,30 @@ map0 {
 			};
 		};
 
-		cpu2-thermal {
+		cpu-big {
 			polling-delay = <1000>;
 			polling-delay-passive = <250>;
-			thermal-sensors = <&lvts_mcu MT8195_MCU_LITTLE_CPU2>;
+			thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU0>,
+					  <&lvts_mcu MT8195_MCU_BIG_CPU1>,
+					  <&lvts_mcu MT8195_MCU_BIG_CPU2>,
+					  <&lvts_mcu MT8195_MCU_BIG_CPU3>;
+			sustainable-power = <1500>;
 
 			trips {
-				cpu2_alert: trip-alert {
-					temperature = <85000>;
+				cpu_big_threshold: trip-point {
+					temperature = <68000>;
 					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 = <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 = <1000>;
-			polling-delay-passive = <250>;
-			thermal-sensors = <&lvts_mcu MT8195_MCU_BIG_CPU0>;
-
-			trips {
-				cpu4_alert: trip-alert {
+				cpu_big_target: target {
 					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 = <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 = <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 = <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>;
+				cpu_big_soc_max_crit: soc-max-crit {
+					temperature = <115000>;
 					hysteresis = <2000>;
 					type = "critical";
 				};
@@ -3831,7 +3671,7 @@ cpu7_crit: trip-crit {
 
 			cooling-maps {
 				map0 {
-					trip = <&cpu7_alert>;
+					trip = <&cpu_big_target>;
 					cooling-device = <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
 								<&cpu5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
 								<&cpu6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
-- 
2.44.1