[PATCH v2 1/1] arm64: dts: meson: add gpio-fan control to GS-King-X
Furkan Kardame
f.kardame at manjaro.org
Mon May 16 05:25:11 PDT 2022
GS-King-X has a single speed GPIO fan which is always-on by default. If
we add controls for the fan and a trip point, the fan stays off most of
the time, reducing background noise from the unit.
Signed-off-by: Furkan Kardame <f.kardame at manjaro.org>
---
.../boot/dts/amlogic/meson-g12b-gsking-x.dts | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-gsking-x.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-gsking-x.dts
index 6c7bfacba..243410913 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-gsking-x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-gsking-x.dts
@@ -19,6 +19,15 @@ aliases {
rtc0 = &rtc;
rtc1 = &vrtc;
};
+
+ gpio_fan: gpio-fan {
+ compatible = "gpio-fan";
+ gpios = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
+ /* Using Dummy Speed */
+ gpio-fan,speed-map = <0 0
+ 1 1>;
+ #cooling-cells = <2>;
+ };
gpio-keys-polled {
compatible = "gpio-keys-polled";
@@ -131,3 +140,20 @@ &tdmout_a {
&tohdmitx {
status = "okay";
};
+
+&cpu_thermal {
+ trips {
+ cpu_active: cpu-active
+ temperature = <60000>; /* millicelsius */
+ hysteresis = <2000>; /* millicelsius */
+ type = "active";
+ };
+ };
+
+ cooling-maps {
+ map {
+ trip = <&cpu_active>;
+ cooling-device = <&gpio_fan 1 THERMAL_NO_LIMIT>;
+ };
+ };
+};
--
2.35.1
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