From 7c8ec5e6b9d63c7e85a005a2c2e9a4a929424a09 Mon Sep 17 00:00:00 2001
From: Sam Edwards <cfsworks@gmail.com>
Date: Wed, 11 Sep 2024 19:50:32 -0700
Subject: [PATCH] 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: soxrok2212 <soxrok2212@gmail.com>
Signed-off-by: Sam Edwards <CFSworks@gmail.com>
Link: https://lore.kernel.org/r/20240912025034.180233-4-CFSworks@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 .../boot/dts/rockchip/rk3588-turing-rk1.dtsi  | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)

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";