linux-kernel - [PATCH v2] arm64: dts: rockchip: enable automatic fan control on Orange Pi 5+

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Message-ID: <20240922145538.256235-2-flokli@flokli.de>
Date: Sun, 22 Sep 2024 17:55:29 +0300
From: Florian Klink <flokli@...kli.de>
To: 
Cc: Florian Klink <flokli@...kli.de>,
	Dragan Simic <dsimic@...jaro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Kever Yang <kever.yang@...k-chips.com>,
	FUKAUMI Naoki <naoki@...xa.com>,
	Ondrej Jirman <megi@....cz>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] arm64: dts: rockchip: enable automatic fan control on Orange Pi 5+

This links the PWM fan on Orange Pi 5+ as an active cooling device
managed automatically by the thermal subsystem, with a target SoC
temperature of 65C and a minimum-spin interval from 55C to 65C to
ensure airflow when the system gets warm.

This is pretty much the same as '4a152231b050 ("arm64: dts: rockchip:
enable automatic fan control on Rock 5B")', except for the Orange Pi
5+ board.

Signed-off-by: Florian Klink <flokli@...kli.de>
Reviewed-by: Dragan Simic <dsimic@...jaro.org>
---

Notes:
   Changes in v2:
    - Updated map{1,2} to map{0,1} for the same reasons as [1]

   Link to v1: https://lore.kernel.org/linux-rockchip/20240921183810.225322-1-flokli@flokli.de/T/#u

[1] https://lore.kernel.org/linux-rockchip/335ecd5841ab55f333e17bb391d0e1264fac257b.1726954592.git.dsimic@manjaro.org/T/#u
 .../dts/rockchip/rk3588-orangepi-5-plus.dts   | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts b/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
index e74871491ef5..d91438752006 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts
@@ -351,6 +351,36 @@ &i2s2m0_sdi
 	status = "okay";
 };
 
+&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>;
+		};
+	};
+};
+
 /* phy1 - M.KEY socket */
 &pcie2x1l0 {
 	reset-gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>;
-- 
2.46.0