Lines Matching refs:sensor

25 * Thermal sensor devices
27 Thermal sensor devices are nodes providing temperature sensing capabilities on
29 nodes providing temperature data to thermal zones. Thermal sensor devices may
33 - #thermal-sensor-cells: Used to provide sensor device specific information
34   Type: unsigned	 while referring to it. Typically 0 on thermal sensor
35   Size: one cell	 nodes with only one sensor, and at least 1 on nodes
37 			 to identify uniquely the sensor instances within
39 			 on how consumers refer to sensor devices.
147 - thermal-sensors:	A list of thermal sensor phandles and sensor specifier
149   phandles + sensor
168 			by means of sensor ID. Additional coefficients are
205 using one single sensor as temperature source and many cooling devices and
253 	 * A simple IC with a single bandgap temperature sensor.
257 		#thermal-sensor-cells = <0>;
304 In the example above, the ADC sensor (bandgap0) at address 0x0000ED00 is
305 used to monitor the zone 'cpu-thermal' using its sole sensor. A fan
321 single sensor IC, assuming it has several internal sensors. This is a common
323 requirements, and thus may have their own sensor to monitor or detect internal
335 		#thermal-sensor-cells = <1>;
344 				/* sensor       ID */
371 				/* sensor       ID */
398 				/* sensor       ID */
428 Thus, there is a need to assign each sensor provided by the bandgap IC
430 #thermal-sensor-cells property and using the first cell of the sensor
431 specifier as sensor ID. In the example, then, <bandgap 0> is used to
440 The example below illustrates how to use more than one sensor within
448 	 * A simple IC with a single temperature sensor.
450 	adc: sensor@0x49 {
452 		#thermal-sensor-cells = <0>;
459 	 * A simple IC with a single bandgap temperature sensor.
463 		#thermal-sensor-cells = <0>;
488 In some cases, there is a need to use more than one sensor to extrapolate
490 For instance, it may be the case that a sensor external to CPU IP may be placed
491 close to CPU hotspot and together with internal CPU sensor, it is used
501 from the ADC sensor. The binding would be then:
517 	 * An IC with several temperature sensor.
519 	adc_dummy: sensor@0x50 {
521 		#thermal-sensor-cells = <1>; /* sensor internal ID */
530 				/* sensor       ID */
546 				/* sensor       ID */
551 		 * An array of coefficients describing the sensor
603 The above example is a mix of previous examples, a sensor IP with several internal