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arm64: dts: mediatek: mt7988a-bpi-r4: Add fan and coolingmaps

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Add Fan and cooling maps for Bananapi-R4 board.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20250516180147.10416-12-linux@fw-web.de
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Frank Wunderlich
2025-05-16 20:01:41 +02:00
committed by AngeloGioacchino Del Regno
parent e4950b016c
commit 0f63e96e2a
1 changed files with 29 additions and 0 deletions
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29
arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dtsi
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@@ -12,6 +12,15 @@ chosen {
stdout-path = "serial0:115200n8";
};
fan: pwm-fan {
compatible = "pwm-fan";
/* cooling level (0, 1, 2, 3) : (0% duty, 30% duty, 50% duty, 100% duty) */
cooling-levels = <0 80 128 255>;
#cooling-cells = <2>;
pwms = <&pwm 0 50000>;
status = "okay";
};
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "fixed-1.8V";
@@ -73,6 +82,26 @@ cpu_trip_active_low: active-low {
type = "active";
};
};
cooling-maps {
map-cpu-active-high {
/* active: set fan to cooling level 2 */
cooling-device = <&fan 3 3>;
trip = <&cpu_trip_active_high>;
};
map-cpu-active-med {
/* active: set fan to cooling level 1 */
cooling-device = <&fan 2 2>;
trip = <&cpu_trip_active_med>;
};
map-cpu-active-low {
/* active: set fan to cooling level 0 */
cooling-device = <&fan 1 1>;
trip = <&cpu_trip_active_low>;
};
};
};
&i2c0 {