From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liam Breck Subject: [PATCH v6 1/8] devicetree: power: Add battery.txt Date: Fri, 10 Feb 2017 18:43:33 -0800 Message-ID: <20170211024340.19491-2-liam@networkimprov.net> References: <20170211024340.19491-1-liam@networkimprov.net> Return-path: In-Reply-To: <20170211024340.19491-1-liam@networkimprov.net> Sender: linux-pm-owner@vger.kernel.org To: Sebastian Reichel Cc: "Andrew F . Davis" , linux-pm@vger.kernel.org, Rob Herring , devicetree@vger.kernel.org, Matt Ranostay , Liam Breck List-Id: devicetree@vger.kernel.org From: Matt Ranostay 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. Cc: Rob Herring Cc: devicetree@vger.kernel.org Signed-off-by: Matt Ranostay Signed-off-by: Liam Breck --- .../devicetree/bindings/power/supply/battery.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 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..d78a4aa --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/battery.txt @@ -0,0 +1,37 @@ +Battery Characteristics + +Required Properties: + - compatible: Must be "fixed-battery" + +Optional Properties: + - voltage-min-design-microvolt: drained 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>; + energy-full-design-microwatt-hours = <5290000>; + charge-full-design-microamp-hours = <1430000>; + }; + + charger: charger@11 { + .... + monitored-battery = <&bat>; + ... + }; + + fuel_gauge: fuel-gauge@22 { + .... + monitored-battery = <&bat>; + ... + }; -- 2.9.3