Nanako/openwrt
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mvebu: enable thermal zone polling for IEI Puzzle devices

Browse Source 
Marvell's thermal sensors do not support interrupts, so we need to
poll them. Reading temperature every second should be enough to
control the fan.
While at it, also make sure fan speed is reduced again if temperature
goes down.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle
2024-03-17 15:55:09 +00:00
parent 7ac030876c
commit fc177695e0
1 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
target/linux/mvebu/files/arch/arm64/boot/dts/marvell/puzzle-thermal.dtsi
View File

@@ -1,4 +1,7 @@
#define PUZZLE_FAN_THERMAL(_cname, _fan) \
polling-delay-passive = <500>; \
polling-delay = <1000>; \
\
trips { \
_cname##_active_high: cpu-active-high { \
temperature = <80000>; \
@@ -28,14 +31,14 @@
}; \
cpu-active-med { \
trip = <&_cname##_active_med>; \
cooling-device = <_fan 2 THERMAL_NO_LIMIT>; \
cooling-device = <_fan 2 3>; \
}; \
cpu-active-low { \
trip = <&_cname##_active_low>; \
cooling-device = <_fan 1 THERMAL_NO_LIMIT>; \
cooling-device = <_fan 1 2>; \
}; \
cpu-active-idle { \
trip = <&_cname##_active_idle>; \
cooling-device = <_fan 0 THERMAL_NO_LIMIT>; \
cooling-device = <_fan 0 0>; \
}; \
}