On Sat, Feb 04, 2017 at 01:15:56AM -0800, Liam Breck wrote: > From: Matt Ranostay <matt@ranostay.consulting> > > From: Matt Ranostay <matt@ranostay.consulting> > > Documentation of static battery characteristics that can be defined > for batteries which cannot self-identify. This information is required > by fuel-gauge and charger chips for proper handling of the battery. I hope this is a common binding and not yet another battery binding. > > Cc: Rob Herring <robh@xxxxxxxxxx> > Cc: devicetree@xxxxxxxxxxxxxxx > Signed-off-by: Matt Ranostay <matt@ranostay.consulting> > Signed-off-by: Liam Breck <kernel@xxxxxxxxxxxxxxxxx> > --- > .../devicetree/bindings/power/supply/battery.txt | 39 ++++++++++++++++++++++ > 1 file changed, 39 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/supply/battery.txt > > diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt > new file mode 100644 > index 0000000..d663c48 > --- /dev/null > +++ b/Documentation/devicetree/bindings/power/supply/battery.txt > @@ -0,0 +1,39 @@ > +Battery Characteristics > + > +Required Properties: > + - compatible: Must be "fixed-battery" The "fixed" part seems a bit pointless. Just "battery" would be a bit generic. Don't you need to know the battery chemistry typically? Or number of cells? > + > +Optional Properties: > + - voltage-min-design-microvolt: drained battery voltage > + - voltage-max-design-microvolt: charged battery voltage > + - energy-full-design-microwatt-hours: battery design energy > + - charge-full-design-microamp-hours: battery design capacity > + > +Future Properties must be named for the corresponding elements in > +enum power_supply_property, defined in include/linux/power_supply.h. > + > +Batteries must be referenced by chargers and/or fuel-gauges > +using a phandle. The phandle's property should be named > +"monitored-battery". > + > +Example: > + > + bat: battery { > + compatible = "fixed-battery"; > + voltage-min-design-microvolt = <3200000>; > + voltage-max-design-microvolt = <4200000>; > + energy-full-design-microwatt-hours = <5290000>; > + charge-full-design-microamp-hours = <1430000>; > + }; > + > + charger: charger@0 { > + .... > + monitored-battery = <&bat>; > + ... > + }; > + > + fuel_gauge: fuel_gauge@0 { fuel-gauge@... > + .... > + monitored-battery = <&bat>; > + ... > + }; > -- > 2.9.3 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html