diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2020-02-26 09:22:37 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2020-06-29 01:19:52 +0100 |
| commit | 29936aa8eb6add171b60e4846c44fb66fd8c57fd (patch) | |
| tree | 71956a0d34001d3a334ea6d917a292231a1f3e43 | |
| parent | 927ef7304b8e34722e41e1ba54ee797494d4dc55 (diff) | |
arm64: dts: marvell: clearfog-gt-8k: add cooling maps
Add cooling maps suitable for a Noctua NF-A4/10 fan attached to the
heat sink. The fan will toggle between two speeds in operation which
seems to be normal behaviour. More fine-grained steps may help to
reduce this.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts | 122 |
1 files changed, 121 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts index 9da80f8d8d48..a0be23575350 100644 --- a/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts +++ b/arch/arm64/boot/dts/marvell/armada-8040-clearfog-gt-8k.dts @@ -31,8 +31,11 @@ ethernet2 = &cp1_eth2; }; - pwm { + fan: pwm { compatible = "pwm-fan"; + /* 20% steps */ + cooling-levels = <0 51 102 153 204 255>; + #cooling-cells = <2>; pinctrl-names = "default"; pinctrl-0 = <&cp0_fan_pwm_pins>; pwms = <&cp0_gpio2 16 40000>; @@ -109,6 +112,123 @@ }; }; +&ap_thermal_ic { + polling-delay = <1000>; /* milliseconds */ + trips { + ap_active: trip-active { + temperature = <40000>; /* millicelsius */ + hysteresis = <4000>; /* millicelsius */ + type = "active"; + }; + }; + cooling-maps { + map0 { + trip = <&ap_active>; + cooling-device = <&fan THERMAL_NO_LIMIT 4>; + }; + map1 { + trip = <&ap_crit>; + cooling-device = <&fan 4 5>; + }; + }; +}; + +&cp0_thermal_ic { + polling-delay = <1000>; /* milliseconds */ + trips { + cp0_active0: trip-active0 { + temperature = <40000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + cp0_active1: trip-active1 { + temperature = <45000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + cp0_active2: trip-active2 { + temperature = <50000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + cp0_active3: trip-active3 { + temperature = <60000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + }; + cooling-maps { + map0 { + trip = <&cp0_active0>; + cooling-device = <&fan 0 1>; + }; + map1 { + trip = <&cp0_active1>; + cooling-device = <&fan 1 2>; + }; + map2 { + trip = <&cp0_active2>; + cooling-device = <&fan 2 3>; + }; + map3 { + trip = <&cp0_active3>; + cooling-device = <&fan 3 4>; + }; + map4 { + trip = <&cp0_crit>; + cooling-device = <&fan 4 5>; + }; + }; +}; + +&cp1_thermal_ic { + polling-delay = <1000>; /* milliseconds */ + trips { + cp1_active0: trip-active0 { + temperature = <40000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + cp1_active1: trip-active1 { + temperature = <45000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + cp1_active2: trip-active2 { + temperature = <50000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + cp1_active3: trip-active3 { + temperature = <60000>; /* millicelsius */ + hysteresis = <2500>; /* millicelsius */ + type = "active"; + }; + }; + cooling-maps { + map0 { + trip = <&cp1_active0>; + cooling-device = <&fan 0 1>; + }; + map1 { + trip = <&cp1_active1>; + cooling-device = <&fan 1 2>; + }; + map2 { + trip = <&cp1_active2>; + cooling-device = <&fan 2 3>; + }; + map3 { + trip = <&cp1_active3>; + cooling-device = <&fan 3 4>; + }; + map4 { + trip = <&cp1_crit>; + cooling-device = <&fan 4 5>; + }; + }; +}; + &uart0 { status = "okay"; pinctrl-0 = <&uart0_pins>; |