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arm64: dts: mt7986: change cooling trips

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commit 1fcda8ceb014aafd56f10b33e0077c93b5dd45d1 upstream.

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: 1f5be05132f3 ("arm64: dts: mt7986: add thermal-zones")
Fixes: c26f779a2295 ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Frank Wunderlich 2023-10-25 19:08:30 +02:00 committed by Greg Kroah-Hartman
parent 8e1e489cdb
commit 5012eb0280
2 changed files with 21 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
View File

@ -150,16 +150,16 @@
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

@ -610,22 +610,34 @@
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";
};
};
};