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From: Alexey Charkov <alchark@gmail.com>
To: Rob Herring <robh+dt@kernel.org>,
	 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>,
	 Dragan Simic <dsimic@manjaro.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	 Chen-Yu Tsai <wens@kernel.org>,
	devicetree@vger.kernel.org,
	 linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org,
	 linux-kernel@vger.kernel.org, Alexey Charkov <alchark@gmail.com>
Subject: [PATCH v3 2/5] arm64: dts: rockchip: enable automatic active cooling on Rock 5B
Date: Thu, 29 Feb 2024 23:26:33 +0400	[thread overview]
Message-ID: <20240229-rk-dts-additions-v3-2-6afe8473a631@gmail.com> (raw)
In-Reply-To: <20240229-rk-dts-additions-v3-0-6afe8473a631@gmail.com>

This links the PWM fan on Radxa Rock 5B 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

Signed-off-by: Alexey Charkov <alchark@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 30 ++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index a0e303c3a1dc..3f7fb055c4dc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -52,7 +52,7 @@ led_rgb_b {
 
 	fan: pwm-fan {
 		compatible = "pwm-fan";
-		cooling-levels = <0 95 145 195 255>;
+		cooling-levels = <0 120 150 180 210 240 255>;
 		fan-supply = <&vcc5v0_sys>;
 		pwms = <&pwm1 0 50000 0>;
 		#cooling-cells = <2>;
@@ -173,6 +173,34 @@ &cpu_l3 {
 	cpu-supply = <&vdd_cpu_lit_s0>;
 };
 
+&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 {
+		map1 {
+			trip = <&package_fan0>;
+			cooling-device = <&fan THERMAL_NO_LIMIT 1>;
+		};
+		map2 {
+			trip = <&package_fan1>;
+			cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
+		};
+	};
+};
+
 &i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0m2_xfer>;

-- 
2.44.0


  parent reply	other threads:[~2024-02-29 19:27 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-29 19:26 [PATCH v3 0/5] RK3588 and Rock 5B dts additions: thermal, OPP and fan Alexey Charkov
2024-02-29 19:26 ` [PATCH v3 1/5] arm64: dts: rockchip: enable built-in thermal monitoring on RK3588 Alexey Charkov
2024-02-29 20:21   ` Dragan Simic
2024-03-01  5:12     ` Alexey Charkov
2024-03-01  5:51       ` Dragan Simic
2024-03-01  8:25         ` Alexey Charkov
2024-03-01  8:52           ` Dragan Simic
2024-03-01  9:24             ` Dragan Simic
2024-03-01 11:10             ` Alexey Charkov
2024-03-01 12:02               ` Chen-Yu Tsai
2024-03-01 13:11                 ` Dragan Simic
2024-03-01 12:34               ` Dragan Simic
2024-02-29 21:11   ` Dragan Simic
2024-03-01  5:20     ` Alexey Charkov
2024-03-01  6:14       ` Dragan Simic
2024-03-01  7:51         ` Alexey Charkov
2024-03-01  8:21           ` Dragan Simic
2024-03-02 11:25   ` Heiko Stuebner
2024-03-02 18:38     ` Dragan Simic
2024-02-29 19:26 ` Alexey Charkov [this message]
2024-02-29 21:25   ` [PATCH v3 2/5] arm64: dts: rockchip: enable automatic active cooling on Rock 5B Dragan Simic
2024-03-01  5:21     ` Alexey Charkov
2024-03-01  6:17       ` Dragan Simic
2024-03-01  8:25         ` Dragan Simic
2024-03-01  8:30           ` Alexey Charkov
2024-03-01  9:32             ` Dragan Simic
2024-02-29 19:26 ` [PATCH v3 3/5] arm64: dts: rockchip: Add CPU/memory regulator coupling for RK3588 Alexey Charkov
2024-03-01  8:13   ` Dragan Simic
2024-03-11 10:24     ` Dragan Simic
2024-02-29 19:26 ` [PATCH v3 4/5] arm64: dts: rockchip: Add OPP data for CPU cores on RK3588 Alexey Charkov
2024-03-01  6:31   ` Dragan Simic
2024-02-29 19:26 ` [PATCH v3 5/5] arm64: dts: rockchip: Add further granularity in RK3588 CPU OPPs Alexey Charkov
2024-03-01  6:36   ` Dragan Simic
2024-03-04 17:50 ` [PATCH v3 0/5] RK3588 and Rock 5B dts additions: thermal, OPP and fan Sebastian Reichel
2024-03-05  8:06   ` Alexey Charkov
2024-03-07 12:38     ` Alexey Charkov
2024-03-07 14:21       ` Dragan Simic
2024-03-11  7:08         ` Dragan Simic
2024-03-07 22:16       ` Sebastian Reichel
2024-03-13 16:39         ` Sebastian Reichel
2024-03-13 16:44           ` Dragan Simic
2024-04-10  9:19 ` Diederik de Haas
2024-04-10  9:28   ` Dragan Simic
2024-04-20 17:53     ` Diederik de Haas
2024-04-21 16:07       ` Dragan Simic

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