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linux/Documentation/devicetree/bindings/property-units.txt

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dt/bindings: add documentation on standard property unit suffixes A common review comment is to add units to DT property names. The naming convention is inconsistent unfortunately although there are clear majorities in use already. This makes it hard to remember the exact name preferred, so I'm documenting this to provide an easy point of reference. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org>
2016-02-09 00:55:55 +08:00
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 : seconds
-ms : milliseconds
-us : microseconds
-ns : nanoseconds
Distance
----------------------------------------
-mm : millimeters
Electricity
----------------------------------------
-microamp : micro amps
devicetree: property-units: Add uWh and uAh units Add entries for microwatt-hours and microamp-hours. Cc: Rob Herring <robh@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Matt Ranostay <matt@ranostay.consulting> Signed-off-by: Liam Breck <kernel@networkimprov.net> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-06-08 02:37:49 +08:00
-microamp-hours : micro amp-hours
dt/bindings: add documentation on standard property unit suffixes A common review comment is to add units to DT property names. The naming convention is inconsistent unfortunately although there are clear majorities in use already. This makes it hard to remember the exact name preferred, so I'm documenting this to provide an easy point of reference. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org>
2016-02-09 00:55:55 +08:00
-ohms : Ohms
-micro-ohms : micro Ohms
devicetree: property-units: Add uWh and uAh units Add entries for microwatt-hours and microamp-hours. Cc: Rob Herring <robh@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Matt Ranostay <matt@ranostay.consulting> Signed-off-by: Liam Breck <kernel@networkimprov.net> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-06-08 02:37:49 +08:00
-microwatt-hours: micro Watt-hours
dt/bindings: add documentation on standard property unit suffixes A common review comment is to add units to DT property names. The naming convention is inconsistent unfortunately although there are clear majorities in use already. This makes it hard to remember the exact name preferred, so I'm documenting this to provide an easy point of reference. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org>
2016-02-09 00:55:55 +08:00
-microvolt : micro volts
[media] dt-bindings: media: Add MAX2175 binding description Add device tree binding documentation for MAX2175 RF to bits tuner device. Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-12 21:26:14 +08:00
-picofarads : picofarads
dt/bindings: add documentation on standard property unit suffixes A common review comment is to add units to DT property names. The naming convention is inconsistent unfortunately although there are clear majorities in use already. This makes it hard to remember the exact name preferred, so I'm documenting this to provide an easy point of reference. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org>
2016-02-09 00:55:55 +08:00
Temperature
----------------------------------------
-celsius : Degrees Celsius
-millicelsius : Degreee milli-Celsius
Pressure
----------------------------------------
-kpascal : kiloPascal