Commit 7c8ec5e6 authored by Sam Edwards's avatar Sam Edwards Committed by Heiko Stuebner
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arm64: dts: rockchip: Enable automatic fan control on Turing RK1 



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: default avatarsoxrok2212 <soxrok2212@gmail.com>
Signed-off-by: default avatarSam Edwards <CFSworks@gmail.com>
Link: https://lore.kernel.org/r/20240912025034.180233-4-CFSworks@gmail.com


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent 3d50680f

arch/arm64/boot/dts/rockchip/rk3588-turing-rk1.dtsi

+53 −0
Original line number Diff line number Diff line
@@ -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";