};
thermal-zones {
- cpu-thermal: cpu-thermal {
+ cpu_thermal: cpu-thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */
thermal-sensors = <&bandgap0>;
trips {
- cpu-alert0: cpu-alert {
+ cpu_alert0: cpu-alert0 {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
};
- cpu-alert1: cpu-alert {
+ cpu_alert1: cpu-alert1 {
temperature = <100000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
- cpu-crit: cpu-crit {
+ cpu_crit: cpu-crit {
temperature = <125000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
cooling-maps {
map0 {
- trip = <&cpu-alert0>;
- cooling-device = <&fan0 THERMAL_NO_LIMITS 4>;
+ trip = <&cpu_alert0>;
+ cooling-device = <&fan0 THERMAL_NO_LIMIT 4>;
};
map1 {
- trip = <&cpu-alert1>;
- cooling-device = <&fan0 5 THERMAL_NO_LIMITS>;
+ trip = <&cpu_alert1>;
+ cooling-device = <&fan0 5 THERMAL_NO_LIMIT>;
};
map2 {
- trip = <&cpu-alert1>;
+ trip = <&cpu_alert1>;
cooling-device =
- <&cpu0 THERMAL_NO_LIMITS THERMAL_NO_LIMITS>;
+ <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
};
device (fan0) is controlled via I2C bus 1, at address 0x48, and has ten
different cooling states 0-9. It is used to remove the heat out of
the thermal zone 'cpu-thermal' using its cooling states
-from its minimum to 4, when it reaches trip point 'cpu-alert0'
+from its minimum to 4, when it reaches trip point 'cpu_alert0'
at 90C, as an example of active cooling. The same cooling device is used at
-'cpu-alert1', but from 5 to its maximum state. The cpu@0 device is also
+'cpu_alert1', but from 5 to its maximum state. The cpu@0 device is also
linked to the same thermal zone, 'cpu-thermal', as a passive cooling device,
-using all its cooling states at trip point 'cpu-alert1',
+using all its cooling states at trip point 'cpu_alert1',
which is a trip point at 100C. On the thermal zone 'cpu-thermal', at the
-temperature of 125C, represented by the trip point 'cpu-crit', the silicon
+temperature of 125C, represented by the trip point 'cpu_crit', the silicon
is not reliable anymore.
(b) - IC with several internal sensors
};
thermal-zones {
- cpu-thermal: cpu-thermal {
+ cpu_thermal: cpu-thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */
trips {
/* each zone within the SoC may have its own trips */
- cpu-alert: cpu-alert {
+ cpu_alert: cpu-alert {
temperature = <100000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
- cpu-crit: cpu-crit {
+ cpu_crit: cpu-crit {
temperature = <125000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
};
};
- gpu-thermal: gpu-thermal {
+ gpu_thermal: gpu-thermal {
polling-delay-passive = <120>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */
trips {
/* each zone within the SoC may have its own trips */
- gpu-alert: gpu-alert {
+ gpu_alert: gpu-alert {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
- gpu-crit: gpu-crit {
+ gpu_crit: gpu-crit {
temperature = <105000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
};
};
- dsp-thermal: dsp-thermal {
+ dsp_thermal: dsp-thermal {
polling-delay-passive = <50>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */
trips {
/* each zone within the SoC may have its own trips */
- dsp-alert: gpu-alert {
+ dsp_alert: dsp-alert {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
- dsp-crit: gpu-crit {
+ dsp_crit: gpu-crit {
temperature = <135000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
};
thermal-zones {
- cpu-thermal: cpu-thermal {
+ cpu_thermal: cpu-thermal {
polling-delay-passive = <250>; /* milliseconds */
polling-delay = <1000>; /* milliseconds */
/*
* An IC with several temperature sensor.
*/
- adc-dummy: sensor@0x50 {
+ adc_dummy: sensor@0x50 {
...
#thermal-sensor-cells = <1>; /* sensor internal ID */
};
polling-delay = <2500>; /* milliseconds */
/* sensor ID */
- thermal-sensors = <&adc-dummy 4>;
+ thermal-sensors = <&adc_dummy 4>;
trips {
...
};
};
- board-thermal: board-thermal {
+ board_thermal: board-thermal {
polling-delay-passive = <1000>; /* milliseconds */
polling-delay = <2500>; /* milliseconds */
/* sensor ID */
- thermal-sensors = <&adc-dummy 0>, /* pcb top edge */
- <&adc-dummy 1>, /* lcd */
- <&adc-dymmy 2>; /* back cover */
+ thermal-sensors = <&adc_dummy 0>, /* pcb top edge */
+ <&adc_dummy 1>, /* lcd */
+ <&adc_dummy 2>; /* back cover */
/*
* An array of coefficients describing the sensor
* linear relation. E.g.:
trips {
/* Trips are based on resulting linear equation */
- cpu-trip: cpu-trip {
+ cpu_trip: cpu-trip {
temperature = <60000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
- gpu-trip: gpu-trip {
+ gpu_trip: gpu-trip {
temperature = <55000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
}
- lcd-trip: lcp-trip {
+ lcd_trip: lcp-trip {
temperature = <53000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
};
- crit-trip: crit-trip {
+ crit_trip: crit-trip {
temperature = <68000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
cooling-maps {
map0 {
- trip = <&cpu-trip>;
+ trip = <&cpu_trip>;
cooling-device = <&cpu0 0 2>;
contribution = <55>;
};
map1 {
- trip = <&gpu-trip>;
+ trip = <&gpu_trip>;
cooling-device = <&gpu0 0 2>;
contribution = <20>;
};
map2 {
- trip = <&lcd-trip>;
+ trip = <&lcd_trip>;
cooling-device = <&lcd0 5 10>;
contribution = <15>;
};