From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liam Breck Subject: [PATCH v1 2/7] devicetree: power: Add docs for TI BQ24190 battery charger Date: Tue, 21 Mar 2017 15:09:16 -0700 Message-ID: <20170321220921.5834-3-liam@networkimprov.net> References: <20170321220921.5834-1-liam@networkimprov.net> Return-path: In-Reply-To: <20170321220921.5834-1-liam@networkimprov.net> Sender: linux-pm-owner@vger.kernel.org To: Sebastian Reichel Cc: Tony Lindgren , linux-pm@vger.kernel.org, Hans de Goede , Rob Herring , devicetree@vger.kernel.org, Liam Breck List-Id: devicetree@vger.kernel.org From: Liam Breck Document monitored-battery and ti,system-minimum-microvolt properties. Cc: Rob Herring Cc: devicetree@vger.kernel.org Signed-off-by: Liam Breck --- .../devicetree/bindings/power/supply/bq24190.txt | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/bq24190.txt diff --git a/Documentation/devicetree/bindings/power/supply/bq24190.txt b/Documentation/devicetree/bindings/power/supply/bq24190.txt new file mode 100644 index 0000000..d252d10 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/bq24190.txt @@ -0,0 +1,47 @@ +Binding for TI BQ24190 Li-Ion Battery Charger + +Required properties: +- compatible: Should contain one of the following: + * "ti,bq24190" +- reg: integer, I2C address of the device. + +Optional properties: +- monitored-battery: phandle of battery information devicetree node + These battery properties are relevant: + + precharge-current-microamp: maximum charge current during precharge + phase (typically 20% of battery capacity). + + endcharge-current-microamp: a charge cycle terminates when the + battery voltage is above recharge threshold, and the current is below + this setting (typically 10% of battery capacity). + See Documentation/devicetree/bindings/power/supply/battery.txt +- ti,system-minimum-microvolt: when power is connected and the battery + is below minimum system voltage, the system will be regulated above this + setting. + +Other features: +- Use gpio-hog to set the OTG pin high to enable 500mA charge current on USB SDP port. + +Example: + +bat: battery { + compatible = "simple-battery"; + precharge-current-microamp = <256000>; + endcharge-current-microamp = <128000>; +}; + +bq24190 charger@6a { + compatible = "ti,bq24190"; + reg = <0x6a>; + // interrupt configuration here + monitored-battery = <&bat>; + ti,system-minimum-microvolt = <3200000>; +}; + +&twl_gpio { + otg { + gpio-hog; + gpios = <6 0>; + output-high; + line-name = "otg-gpio"; + }; +}; -- 2.9.3