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arm64: dts: mt7986: change cooling trips

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Add Critical and hot trips for emergency system shutdown and limiting
system load.

Change passive trip to active to make sure fan is activated on the
lowest trip.

Cc: stable@vger.kernel.org
Fixes: 1f5be05132 ("arm64: dts: mt7986: add thermal-zones")
Fixes: c26f779a22 ("arm64: dts: mt7986: add pwm-fan and cooling-maps to BPI-R3 dts")
Suggested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20231025170832.78727-4-linux@fw-web.de
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Frank Wunderlich 2023-10-25 19:08:30 +02:00 committed by AngeloGioacchino Del Regno
parent 6413cbc17f
commit 1fcda8ceb0
No known key found for this signature in database
GPG Key ID: 9A3604CFAD978478
2 changed files with 21 additions and 9 deletions
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10
arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
View File

@ -152,16 +152,16 @@ cpu-active-high {
trip = <&cpu_trip_active_high>;
};
cpu-active-low {
cpu-active-med {
/* active: set fan to cooling level 1 */
cooling-device = <&fan 1 1>;
trip = <&cpu_trip_active_low>;
trip = <&cpu_trip_active_med>;
};
cpu-passive {
/* passive: set fan to cooling level 0 */
cpu-active-low {
/* active: set fan to cooling level 0 */
cooling-device = <&fan 0 0>;
trip = <&cpu_trip_passive>;
trip = <&cpu_trip_active_low>;
};
};
};

20
arch/arm64/boot/dts/mediatek/mt7986a.dtsi
View File

@ -614,22 +614,34 @@ cpu_thermal: cpu-thermal {
thermal-sensors = <&thermal 0>;
trips {
cpu_trip_crit: crit {
temperature = <125000>;
hysteresis = <2000>;
type = "critical";
};
cpu_trip_hot: hot {
temperature = <120000>;
hysteresis = <2000>;
type = "hot";
};
cpu_trip_active_high: active-high {
temperature = <115000>;
hysteresis = <2000>;
type = "active";
};
cpu_trip_active_low: active-low {
cpu_trip_active_med: active-med {
temperature = <85000>;
hysteresis = <2000>;
type = "active";
};
cpu_trip_passive: passive {
temperature = <40000>;
cpu_trip_active_low: active-low {
temperature = <60000>;
hysteresis = <2000>;
type = "passive";
type = "active";
};
};
};