Documentation/devicetree/bindings/property-units.txt

   1 Standard Unit Suffixes for Property names
   2
   3 Properties which have a unit of measure are recommended to have a unit
   4 suffix appended to the property name. The list below contains the
   5 recommended suffixes. Other variations exist in bindings, but should not
   6 be used in new bindings or added here. The inconsistency in the unit
   7 prefixes is due to selecting the most commonly used variants.
   8
   9 It is also recommended to use the units listed here and not add additional
  10 unit prefixes.
  11
  12 Time/Frequency
  13 ----------------------------------------
  14 -mhz            : megahertz
  15 -hz             : Hertz (preferred)
  16 -sec            : seconds
  17 -ms             : milliseconds
  18 -us             : microseconds
  19 -ns             : nanoseconds
  20
  21 Distance
  22 ----------------------------------------
  23 -mm             : millimeters
  24
  25 Electricity
  26 ----------------------------------------
  27 -microamp       : micro amps
  28 -ohms           : Ohms
  29 -micro-ohms     : micro Ohms
  30 -microvolt      : micro volts
  31
  32 Temperature
  33 ----------------------------------------
  34 -celsius        : Degrees Celsius
  35 -millicelsius   : Degreee milli-Celsius
  36
  37 Pressure
  38 ----------------------------------------
  39 -kpascal        : kiloPascal