[PATCH 2/2] arm64: dts: rockchip: Enable automatic fan control on Radxa Rock 5C

[Alexey Charkov]

Add the necessary cooling map to enable the kernel's thermal subsystem
to manage the fan speed automatically depending on the overall SoC
package temperature on Radxa Rock 5C

Signed-off-by: Alexey Charkov <alchark at gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts | 32 +++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
index 1b66a69cf0f8795d7305852fa7fef3d0672ada7f..6e56d7704cbe0dc06242cb39df56b2fc9d6bc774 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
@@ -68,7 +68,7 @@ led-1 {
 		};
 	};
 
-	fan {
+	fan: fan {
 		compatible = "pwm-fan";
 		#cooling-cells = <2>;
 		cooling-levels = <0 24 44 64 128 192 255>;
@@ -417,6 +417,36 @@ rgmii_phy1: ethernet-phy at 1 {
 	};
 };
 
+&package_thermal {
+	polling-delay = <1000>;
+
+	trips {
+		package_fan0: package-fan0 {
+			temperature = <55000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+
+		package_fan1: package-fan1 {
+			temperature = <65000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+	};
+
+	cooling-maps {
+		map0 {
+			trip = <&package_fan0>;
+			cooling-device = <&fan THERMAL_NO_LIMIT 1>;
+		};
+
+		map1 {
+			trip = <&package_fan1>;
+			cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
+		};
+	};
+};
+
 &pcie2x1l2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie20x1_2_perstn_m0>;

-- 
2.48.1