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dt-bindings: rtc: Add quartz-load-femtofarads property 

The quartz-load-femtofarads are relevant for
several users. Add it as a common property in rtc.
Note that valid values and default values must be documented.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Suggested-by: Rob Herring <robh+dt@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Sam Ravnborg 2019-01-19 10:00:27 +01:00 committed by Alexandre Belloni
parent 5eca99917c
commit d08fd7c1b9
1 changed files with 10 additions and 6 deletions
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16
Documentation/devicetree/bindings/rtc/rtc.txt
View File

@ -21,12 +21,16 @@ Optional properties
The following properties may not be supported by all drivers. However, if a
driver wants to support one of the below features, it should adapt the bindings
below.
- trickle-resistor-ohms : Selected resistor for trickle charger. Should be given
if trickle charger should be enabled
- trickle-diode-disable : Do not use internal trickle charger diode Should be
given if internal trickle charger diode should be
disabled
- wakeup-source : Enables wake up of host system on alarm
- trickle-resistor-ohms : Selected resistor for trickle charger. Should be given
if trickle charger should be enabled
- trickle-diode-disable : Do not use internal trickle charger diode Should be
given if internal trickle charger diode should be
disabled
- wakeup-source : Enables wake up of host system on alarm
- quartz-load-femtofarads : The capacitive load of the quartz(x-tal),
expressed in femto Farad (fF).
The default value shall be listed (if optional),
and likewise all valid values.
Trivial RTCs
------------