From 11a2bdc10f5b5e092ee84f8dc2966c78471909fd Mon Sep 17 00:00:00 2001 From: Iskren Chernev Date: Tue, 22 Sep 2020 14:42:33 +0300 Subject: dt-bindings: power: supply: Extend max17040 compatibility Maxim max17040 is a fuel gauge from a larger family utilising the Model Gauge technology. Document all different compatible strings that the max17040 driver recognizes. Some devices in the wild report double the capacity. The maxim,double-soc (from State-Of-Charge) property fixes that. Examples: https://lore.kernel.org/patchwork/patch/1263411/#1468420 Signed-off-by: Iskren Chernev Reviewed-by: Rob Herring Signed-off-by: Sebastian Reichel --- .../devicetree/bindings/power/supply/max17040_battery.txt | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'Documentation/devicetree/bindings/power/supply/max17040_battery.txt') diff --git a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt index 4e0186b8380f..5aa83e797a02 100644 --- a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt +++ b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt @@ -2,7 +2,9 @@ max17040_battery ~~~~~~~~~~~~~~~~ Required properties : - - compatible : "maxim,max17040" or "maxim,max77836-battery" + - compatible : "maxim,max17040", "maxim,max17041", "maxim,max17043", + "maxim,max17044", "maxim,max17048", "maxim,max17049", + "maxim,max17058", "maxim,max17059" or "maxim,max77836-battery" - reg: i2c slave address Optional properties : @@ -11,6 +13,10 @@ Optional properties : generated. Can be configured from 1 up to 32 (%). If skipped the power up default value of 4 (%) will be used. +- maxim,double-soc : Certain devices return double the capacity. + Specify this boolean property to divide the + reported value in 2 and thus normalize it. + SOC == State of Charge == Capacity. - interrupts : Interrupt line see Documentation/devicetree/ bindings/interrupt-controller/interrupts.txt - wakeup-source : This device has wakeup capabilities. Use this @@ -31,3 +37,10 @@ Example: interrupts = <2 IRQ_TYPE_EDGE_FALLING>; wakeup-source; }; + + battery-fuel-gauge@36 { + compatible = "maxim,max17048"; + reg = <0x36>; + maxim,alert-low-soc-level = <10>; + maxim,double-soc; + }; -- cgit v1.2.3-59-g8ed1b