Re: [PATCH 3/4] arm64: dts: rockchip: enable temperature driven fan control on Rock 5B

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On 24/01/2024 21:30, Alexey Charkov wrote:
This enables thermal monitoring on Radxa Rock 5B and links the PWM
fan as an active cooling device managed automatically by the thermal
subsystem, with a target SoC temperature of 55C

Signed-off-by: Alexey Charkov <alchark@xxxxxxxxx>

Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>

---
  arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 25 ++++++++++++++++++++++++-
  1 file changed, 24 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 9b7bf6cec8bd..c4c94e0b6163 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>;
@@ -180,6 +180,25 @@ &cpu_l3 {
  	cpu-supply = <&vdd_cpu_lit_s0>;
  };
+&package_thermal {
+	polling-delay = <1000>;
+
+	trips {
+		package_fan: package-fan {
+			temperature = <55000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+	};
+
+	cooling-maps {
+		map-fan {
+			trip = <&package_fan>;
+			cooling-device = <&fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+		};
+	};
+};
+
  &i2c0 {
  	pinctrl-names = "default";
  	pinctrl-0 = <&i2c0m2_xfer>;
@@ -738,6 +757,10 @@ regulator-state-mem {
  	};
  };
+&tsadc {
+	status = "okay";
+};
+
  &uart2 {
  	pinctrl-0 = <&uart2m0_xfer>;
  	status = "okay";


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