diff mbox series

[3/5] arm64: dts: rockchip: Enable automatic fan control on Turing RK1

Message ID 20240912025034.180233-4-CFSworks@gmail.com (mailing list archive)
State New
Headers show
Series Turing RK1 SoM DT updates | expand

Commit Message

Sam Edwards Sept. 12, 2024, 2:50 a.m. UTC
This patch adds thermal trip points and cooling maps to the Turing RK1
in order to enable automatic control of the external PWM fan. The fan is
not active below 45C, as the heatsink alone can generally keep the chip
in this temperature region at idle load. This cooling profile errs on
the side of quietness, since the RK1 is commonly deployed in a Turing
Pi 2 clusterboard alongside three others, with additional cooling
provided at the chassis level.

Helped-by: soxrok2212 <soxrok2212@gmail.com>
Signed-off-by: Sam Edwards <CFSworks@gmail.com>
---
 .../boot/dts/rockchip/rk3588-turing-rk1.dtsi  | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi
index 9bcb5acdea54..f6a12fe12d45 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi
@@ -208,6 +208,59 @@  rgmii_phy: ethernet-phy@1 {
 	};
 };
 
+&package_thermal {
+	trips {
+		package_active1: trip-active1 {
+			temperature = <45000>;
+			hysteresis = <5000>;
+			type = "active";
+		};
+		package_active2: trip-active2 {
+			temperature = <50000>;
+			hysteresis = <5000>;
+			type = "active";
+		};
+		package_active3: trip-active3 {
+			temperature = <60000>;
+			hysteresis = <5000>;
+			type = "active";
+		};
+		package_active4: trip-active4 {
+			temperature = <70000>;
+			hysteresis = <5000>;
+			type = "active";
+		};
+		package_active5: trip-active5 {
+			temperature = <80000>;
+			hysteresis = <5000>;
+			type = "active";
+		};
+	};
+
+	cooling-maps {
+		map1 {
+			trip = <&package_active1>;
+			cooling-device = <&fan 1 1>;
+		};
+		map2 {
+			trip = <&package_active2>;
+			cooling-device = <&fan 2 2>;
+		};
+		map3 {
+			trip = <&package_active3>;
+			cooling-device = <&fan 3 3>;
+		};
+		map4 {
+			trip = <&package_active4>;
+			cooling-device = <&fan 4 4>;
+		};
+		map5 {
+			trip = <&package_active5>;
+			cooling-device = <&fan 5 5>;
+		};
+	};
+};
+
 &pcie2x1l1 {
 	linux,pci-domain = <1>;
 	pinctrl-names = "default";