From 3bbe67c4de2aa8b0c042f92ad8c7462e8699cc37 Mon Sep 17 00:00:00 2001
From: Vsevolod Kozlov <zaba@mm.st>
Date: Sat, 4 Jul 2026 15:46:52 +0300
Subject: [PATCH] arm64: dts: rockchip: fan speed control for FriendlyELEC
 CM3588 NAS

The FriendlyELEC CM3588 NAS kit is often supplied with a case and a fan.
Enable control of the speed of the fan using the trip points and cooling
maps from rk3588-nanopc-t6.dtsi as a reference.

Signed-off-by: Vsevolod Kozlov <zaba@mm.st>
Link: https://patch.msgid.link/akkAvJap-MtbKp8B@Vsevolods-MacBook-Pro.local
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 .../rk3588-friendlyelec-cm3588-nas.dts        | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588-nas.dts b/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588-nas.dts
index 0dce96ca8c28..f4c34da61c4d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588-nas.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-friendlyelec-cm3588-nas.dts
@@ -12,6 +12,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/pinctrl/rockchip.h>
 #include <dt-bindings/soc/rockchip,vop2.h>
+#include <dt-bindings/thermal/thermal.h>
 #include <dt-bindings/usb/pd.h>
 #include "rk3588-friendlyelec-cm3588.dtsi"
 
@@ -457,6 +458,36 @@ &i2c8 {
 	status = "okay";
 };
 
+&package_thermal {
+	polling-delay = <1000>;
+
+	trips {
+		package_warm: package-warm {
+			temperature = <55000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+
+		package_hot: package-hot {
+			temperature = <65000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+	};
+
+	cooling-maps {
+		map0 {
+			trip = <&package_warm>;
+			cooling-device = <&fan THERMAL_NO_LIMIT 1>;
+		};
+
+		map1 {
+			trip = <&package_hot>;
+			cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
+		};
+	};
+};
+
 &pcie2x1l0 {
 	/* 2. M.2 socket, CON14: pcie30phy port0 lane1, @fe170000 */
 	max-link-speed = <3>;