[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240617-rk-dts-additions-v5-4-c1f5f3267f1e@gmail.com>
Date: Mon, 17 Jun 2024 22:28:54 +0400
From: Alexey Charkov <alchark@...il.com>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>,
Dragan Simic <dsimic@...jaro.org>, Viresh Kumar <viresh.kumar@...aro.org>,
Chen-Yu Tsai <wens@...nel.org>, Diederik de Haas <didi.debian@...ow.org>,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
Alexey Charkov <alchark@...il.com>
Subject: [PATCH v5 4/8] arm64: dts: rockchip: enable automatic fan control
on Rock 5B
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
Helped-by: Dragan Simic <dsimic@...jaro.org>
Reviewed-by: Dragan Simic <dsimic@...jaro.org>
Signed-off-by: Alexey Charkov <alchark@...il.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 afcc38a5bed8..27dd95f92f33 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>;
@@ -286,6 +286,34 @@ i2s0_8ch_p0_0: endpoint {
};
};
+&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>;
+ };
+ };
+};
+
&pcie2x1l0 {
pinctrl-names = "default";
pinctrl-0 = <&pcie2_0_rst>;
--
2.45.2
Powered by blists - more mailing lists