diff options
| author | Łukasz M | 2023-10-31 15:15:06 +0000 |
|---|---|---|
| committer | Daniel Golle | 2024-02-27 17:42:30 +0000 |
| commit | 91ef14a487a51b5f6d20f8f2cc9d1b485535fddc (patch) | |
| tree | c3a27edbb1c0a2bdaccf7af57b4885100218433a | |
| parent | 78d493af229c2e20a81f01b1d87685da4a897822 (diff) | |
| download | openwrt-91ef14a487a51b5f6d20f8f2cc9d1b485535fddc.tar.gz | |
mediatek: mt7981: improve fan behaviour
This doubles the number of cooling-levels.
In addition the fan is turned on with a low speed at lower temperatures
and with a higher speed at higher temperatures.
This also attempts to reduce the likelihood of constant start-stop actions.
The change only affects the GL.iNet MT3000 and has been tested with it.
Signed-off-by: Łukasz M <lukasz1992m@gmail.com>
(cherry picked from commit 5a603c7a316c3fb4bae4c7cb5c666232864126f2)
| -rw-r--r-- | target/linux/mediatek/files-5.15/arch/arm64/boot/dts/mediatek/mt7981.dtsi | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/target/linux/mediatek/files-5.15/arch/arm64/boot/dts/mediatek/mt7981.dtsi b/target/linux/mediatek/files-5.15/arch/arm64/boot/dts/mediatek/mt7981.dtsi index 05d4b7d91d..cb161df81e 100644 --- a/target/linux/mediatek/files-5.15/arch/arm64/boot/dts/mediatek/mt7981.dtsi +++ b/target/linux/mediatek/files-5.15/arch/arm64/boot/dts/mediatek/mt7981.dtsi @@ -55,8 +55,8 @@ fan: pwm-fan { compatible = "pwm-fan"; - /* cooling level (0, 1, 2, 3) : (0% duty, 50% duty, 75% duty, 100% duty) */ - cooling-levels = <0 128 192 255>; + /* cooling level (0, 1, 2, 3, 4, 5, 6, 7) : (0%/25%/37.5%/50%/62.5%/75%/87.5%/100% duty) */ + cooling-levels = <0 63 95 127 159 191 223 255>; #cooling-cells = <2>; status = "disabled"; }; @@ -67,55 +67,67 @@ polling-delay = <1000>; thermal-sensors = <&thermal 0>; trips { - cpu_trip_crit: crit { - temperature = <125000>; + cpu_trip_active_highest: active-highest { + temperature = <70000>; hysteresis = <2000>; - type = "critical"; - }; - - cpu_trip_hot: hot { - temperature = <120000>; - hysteresis = <2000>; - type = "hot"; + type = "active"; }; cpu_trip_active_high: active-high { - temperature = <115000>; + temperature = <60000>; hysteresis = <2000>; type = "active"; }; cpu_trip_active_med: active-med { - temperature = <85000>; + temperature = <50000>; hysteresis = <2000>; type = "active"; }; cpu_trip_active_low: active-low { - temperature = <60000>; + temperature = <45000>; + hysteresis = <2000>; + type = "active"; + }; + + cpu_trip_active_lowest: active-lowest { + temperature = <40000>; hysteresis = <2000>; type = "active"; }; }; cooling-maps { + cpu-active-highest { + /* active: set fan to cooling level 7 */ + cooling-device = <&fan 7 7>; + trip = <&cpu_trip_active_highest>; + }; + cpu-active-high { - /* active: set fan to cooling level 3 */ - cooling-device = <&fan 3 3>; + /* active: set fan to cooling level 5 */ + cooling-device = <&fan 5 5>; trip = <&cpu_trip_active_high>; }; cpu-active-med { - /* active: set fan to cooling level 2 */ - cooling-device = <&fan 2 2>; + /* active: set fan to cooling level 3 */ + cooling-device = <&fan 3 3>; trip = <&cpu_trip_active_med>; }; cpu-active-low { - /* passive: set fan to cooling level 1 */ - cooling-device = <&fan 1 1>; + /* active: set fan to cooling level 2 */ + cooling-device = <&fan 2 2>; trip = <&cpu_trip_active_low>; }; + + cpu-active-lowest { + /* active: set fan to cooling level 1 */ + cooling-device = <&fan 1 1>; + trip = <&cpu_trip_active_lowest>; + }; }; }; }; |