diff options
| author | Daniel Golle | 2024-03-21 20:59:13 +0000 |
|---|---|---|
| committer | Daniel Golle | 2024-03-21 21:25:38 +0000 |
| commit | 1a47ce5ff2f2db07fca8fc28801c0a78cbf19fe4 (patch) | |
| tree | ded372c1f71ff993d1dcae0e8dbe07d57f981641 | |
| parent | 879826154fd3e5ec353117a9c00cecf5e38c4a16 (diff) | |
| download | openwrt-1a47ce5ff2f2db07fca8fc28801c0a78cbf19fe4.tar.gz | |
mvebu: puzzle-m90x: optimize thermal zone
* have more defined PWM steps similar to the vendor's shell script doing
the same thing
* replace PWM values with experiencal values provided by forum users
* increase hyteresis to prevent changing fan speed every second
(just because it's annoying to listen to)
* add 'hot' trip point at 75 deg. to warn users that shutdown is imminent
Tested on Puzzle M902 only for now, PWM values for Puzzle M901 might be
slightly different but should quite certainly also be rised.
Suggested-by: Martin Gierschner <martin_gierschner@gmx.de>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
3 files changed, 36 insertions, 12 deletions
diff --git a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts index a33f8394ca..d214853f1b 100644 --- a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts +++ b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts @@ -112,7 +112,7 @@ chassis_fan_group0: fan-group@0 { #cooling-cells = <2>; reg = <0x00>; - cooling-levels = <80 102 170 230 255>; + cooling-levels = <0 159 195 211 223 241 255>; }; }; }; diff --git a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9132-puzzle-m902.dts b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9132-puzzle-m902.dts index 4b153fdc8c..8c775e4a4f 100644 --- a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9132-puzzle-m902.dts +++ b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9132-puzzle-m902.dts @@ -157,7 +157,7 @@ chassis_fan_group0: fan-group@0 { #cooling-cells = <2>; reg = <0x00>; - cooling-levels = <80 102 170 230 255>; + cooling-levels = <0 159 195 211 223 241 255>; }; }; }; diff --git a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/puzzle-thermal.dtsi b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/puzzle-thermal.dtsi index a8ce8fd102..ea79ab224e 100644 --- a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/puzzle-thermal.dtsi +++ b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/puzzle-thermal.dtsi @@ -3,38 +3,62 @@ polling-delay = <1000>; \ \ trips { \ + cpu-hot { \ + temperature = <75000>; \ + hysteresis = <5000>; \ + type = "hot"; \ + }; \ + _cname##_active_full: cpu-active-full { \ + temperature = <70000>; \ + hysteresis = <5000>; \ + type = "active"; \ + }; \ _cname##_active_high: cpu-active-high { \ - temperature = <80000>; \ - hysteresis = <2000>; \ + temperature = <65000>; \ + hysteresis = <5000>; \ type = "active"; \ }; \ _cname##_active_med: cpu-active-med { \ - temperature = <72000>; \ - hysteresis = <2000>; \ + temperature = <62500>; \ + hysteresis = <3000>; \ type = "active"; \ }; \ _cname##_active_low: cpu-active-low { \ - temperature = <65000>; \ - hysteresis = <2000>; \ + temperature = <60000>; \ + hysteresis = <3000>; \ + type = "active"; \ + }; \ + _cname##_active_min: cpu-active-min { \ + temperature = <55000>; \ + hysteresis = <5000>; \ type = "active"; \ }; \ _cname##_active_idle: cpu-active-idle { \ - temperature = <60000>; \ - hysteresis = <2000>; \ + temperature = <50000>; \ + hysteresis = <5000>; \ type = "active"; \ }; \ }; \ cooling-maps { \ + cpu-active-full { \ + trip = <&_cname##_active_full>; \ + cooling-device = <_fan THERMAL_NO_LIMIT \ + THERMAL_NO_LIMIT>; \ + }; \ cpu-active-high { \ trip = <&_cname##_active_high>; \ - cooling-device = <_fan 3 THERMAL_NO_LIMIT>; \ + cooling-device = <_fan 4 5>; \ }; \ cpu-active-med { \ trip = <&_cname##_active_med>; \ - cooling-device = <_fan 2 3>; \ + cooling-device = <_fan 3 4>; \ }; \ cpu-active-low { \ trip = <&_cname##_active_low>; \ + cooling-device = <_fan 2 3>; \ + }; \ + cpu-active-min { \ + trip = <&_cname##_active_min>; \ cooling-device = <_fan 1 2>; \ }; \ cpu-active-idle { \ |