This is a note to let you know that I've just added the patch titled
arm64: dts: mt7986: change cooling trips
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-mt7986-change-cooling-trips.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1fcda8ceb014aafd56f10b33e0077c93b5dd45d1 Mon Sep 17 00:00:00 2001
From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
Date: Wed, 25 Oct 2023 19:08:30 +0200
Subject: arm64: dts: mt7986: change cooling trips
From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx
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@xxxxxxxxxxxxxx>
Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20231025170832.78727-4-linux@xxxxxxxxx
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts | 10 +++----
arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 20 ++++++++++++---
2 files changed, 21 insertions(+), 9 deletions(-)
--- a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
@@ -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>;
};
};
};
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -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";
};
};
};
Patches currently in stable-queue which might be from frank-w@xxxxxxxxxxxxxxx are
queue-6.6/arm64-dts-mt7986-fix-emmc-hs400-mode-without-uboot-initialization.patch
queue-6.6/arm64-dts-mt7986-change-cooling-trips.patch
queue-6.6/arm64-dts-mt7986-define-3w-max-power-to-both-sfp-on-bpi-r3.patch
