From: Thierry Reding <treding@nvidia.com>
Date: Mon, 17 Jul 2023 16:30:37 +0000 (+0200)
Subject: arm64: tegra: Add 35°C trip point for Jetson Orin NX/Nano
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9304f699a7972738dbbccf052a59b01d083994ff;p=linux.git

arm64: tegra: Add 35°C trip point for Jetson Orin NX/Nano

It turns out that these devices can get quite hot to the touch with the
standard cooling configuration, so add another trip point at 35°C along
with a cooling map to help keep the system reasonably cool at very low
system load.

Reviewed-by: Yi-Wei Wang <yiweiw@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
index a8aa6e7d8fbc5..5f592f1d81e2e 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
@@ -106,12 +106,18 @@
 
 			trips {
 				tj_trip_active0: active-0 {
-					temperature = <74000>;
+					temperature = <35000>;
 					hysteresis = <4000>;
 					type = "active";
 				};
 
 				tj_trip_active1: active-1 {
+					temperature = <74000>;
+					hysteresis = <4000>;
+					type = "active";
+				};
+
+				tj_trip_active2: active-2 {
 					temperature = <95000>;
 					hysteresis = <4000>;
 					type = "active";
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
index 2f1a7feb9e091..f1b4ea3167454 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0000.dts
@@ -69,7 +69,7 @@
 	};
 
 	pwm-fan {
-		cooling-levels = <0 187 255>;
+		cooling-levels = <0 88 187 255>;
 	};
 
 	vdd_3v3_pcie: regulator-vdd-3v3-pcie {
@@ -97,6 +97,11 @@
 					cooling-device = <&fan 1 2>;
 					trip = <&tj_trip_active1>;
 				};
+
+				map-active-2 {
+					cooling-device = <&fan 2 3>;
+					trip = <&tj_trip_active2>;
+				};
 			};
 		};
 	};
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0005.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0005.dts
index 9b86aa6f7dbe1..9e9bb9ca8be40 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0005.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767-0005.dts
@@ -12,7 +12,7 @@
 	model = "NVIDIA Jetson Orin Nano Developer Kit";
 
 	pwm-fan {
-		cooling-levels = <0 187 255>;
+		cooling-levels = <0 88 187 255>;
 	};
 
 	thermal-zones {
@@ -27,6 +27,11 @@
 					cooling-device = <&fan 1 2>;
 					trip = <&tj_trip_active1>;
 				};
+
+				map-active-2 {
+					cooling-device = <&fan 2 3>;
+					trip = <&tj_trip_active2>;
+				};
 			};
 		};
 	};