From mboxrd@z Thu Jan 1 00:00:00 1970 From: Liam Breck Subject: [PATCH v4 2/5] devicetree: power: Add docs for TI BQ24190 battery charger Date: Mon, 28 Aug 2017 14:23:46 -0700 Message-ID: <20170828212349.19037-3-liam@networkimprov.net> References: <20170828212349.19037-1-liam@networkimprov.net> Return-path: In-Reply-To: <20170828212349.19037-1-liam-RYWXG+zxWwBdeoIcmNTgJF6hYfS7NtTn@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sebastian Reichel , linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Tony Lindgren , Hans de Goede , Rob Herring , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.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-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Signed-off-by: Liam Breck Acked-by: Tony Lindgren --- .../devicetree/bindings/power/supply/bq24190.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 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 00000000..9e517d30 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/bq24190.txt @@ -0,0 +1,51 @@ +TI BQ24190 Li-Ion Battery Charger + +Required properties: +- compatible: contains one of the following: + * "ti,bq24190" + * "ti,bq24192i" +- reg: integer, I2C address of the charger. +- interrupts[-extended]: configuration for charger INT pin. + +Optional properties: +- monitored-battery: phandle of battery characteristics devicetree node + The charger uses the following battery properties: + + precharge-current-microamp: maximum charge current during precharge + phase (typically 20% of battery capacity). + + charge-term-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 also 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. + +Notes: +- Some circuit boards wire the chip's "OTG" pin high (enabling 500mA default + charge current on USB SDP ports, among other features). To simulate this on + boards that wire the pin to a GPIO, set a gpio-hog. + +Example: + + bat: battery { + compatible = "simple-battery"; + precharge-current-microamp = <256000>; + charge-term-current-microamp = <128000>; + // etc. + }; + + bq24190: charger@6a { + compatible = "ti,bq24190"; + reg = <0x6a>; + interrupts-extended = <&gpiochip 10 IRQ_TYPE_EDGE_FALLING>; + monitored-battery = <&bat>; + ti,system-minimum-microvolt = <3200000>; + }; + + &twl_gpio { + otg { + gpio-hog; + gpios = <6 0>; + output-high; + line-name = "otg-gpio"; + }; + }; -- 2.13.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html