docs: dt: remove stale property-units.txt, link to current schema

property-units.txt is not maintained anymore. New suffixes are now
supported that have not been added here.

To avoid people incorrectly think a given suffix is not in the list remove
the file entirely and point to the authoritative place where the
recommended suffixes are maintained.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Link: https://lore.kernel.org/r/20210512152311.7399-1-luca@lucaceresoli.net
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/property-units.txt b/Documentation/devicetree/bindings/property-units.txt
deleted file mode 100644 (file)
index 218f99f..0000000
--- a/Documentation/devicetree/bindings/property-units.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-Standard Unit Suffixes for Property names
-
-Properties which have a unit of measure are recommended to have a unit
-suffix appended to the property name. The list below contains the
-recommended suffixes. Other variations exist in bindings, but should not
-be used in new bindings or added here. The inconsistency in the unit
-prefixes is due to selecting the most commonly used variants.
-
-It is also recommended to use the units listed here and not add additional
-unit prefixes.
-
-Time/Frequency
-----------------------------------------
--mhz           : megahertz
--hz            : hertz (preferred)
--sec           : second
--ms            : millisecond
--us            : microsecond
--ns            : nanosecond
--ps            : picosecond
-
-Distance
-----------------------------------------
--mm            : millimeter
-
-Electricity
-----------------------------------------
--microamp      : microampere
--microamp-hours : microampere hour
--ohms          : ohm
--micro-ohms    : microohm
--microwatt-hours: microwatt hour
--microvolt     : microvolt
--picofarads    : picofarad
--femtofarads   : femtofarad
-
-Temperature
-----------------------------------------
--celsius       : degree Celsius
--millicelsius  : millidegree Celsius
-
-Pressure
-----------------------------------------
--kpascal       : kilopascal
-
-Throughput
-----------------------------------------
--kBps          : kilobytes per second

diff --git a/Documentation/devicetree/bindings/writing-bindings.rst b/Documentation/devicetree/bindings/writing-bindings.rst
index 45ff426..f7dfb98 100644 (file)
--- a/Documentation/devicetree/bindings/writing-bindings.rst
+++ b/Documentation/devicetree/bindings/writing-bindings.rst
@@ -52,7 +52,8 @@ Properties
   constraints specific to the device.
 
 - DO use common property unit suffixes for properties with scientific units.
-  See property-units.txt.
+  Recommended suffixes are listed at
+  https://github.com/devicetree-org/dt-schema/blob/master/schemas/property-units.yaml
 
 - DO define properties in terms of constraints. How many entries? What are
   possible values? What is the order?