Commit 11a2bdc1 authored by Iskren Chernev's avatar Iskren Chernev Committed by Sebastian Reichel

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/#1468420Signed-off-by: default avatarIskren Chernev <iskren.chernev@gmail.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
parent 6455a8a8
...@@ -2,7 +2,9 @@ max17040_battery ...@@ -2,7 +2,9 @@ max17040_battery
~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~
Required properties : 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 - reg: i2c slave address
Optional properties : Optional properties :
...@@ -11,6 +13,10 @@ Optional properties : ...@@ -11,6 +13,10 @@ Optional properties :
generated. Can be configured from 1 up to 32 generated. Can be configured from 1 up to 32
(%). If skipped the power up default value of (%). If skipped the power up default value of
4 (%) will be used. 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/ - interrupts : Interrupt line see Documentation/devicetree/
bindings/interrupt-controller/interrupts.txt bindings/interrupt-controller/interrupts.txt
- wakeup-source : This device has wakeup capabilities. Use this - wakeup-source : This device has wakeup capabilities. Use this
...@@ -31,3 +37,10 @@ Example: ...@@ -31,3 +37,10 @@ Example:
interrupts = <2 IRQ_TYPE_EDGE_FALLING>; interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
wakeup-source; wakeup-source;
}; };
battery-fuel-gauge@36 {
compatible = "maxim,max17048";
reg = <0x36>;
maxim,alert-low-soc-level = <10>;
maxim,double-soc;
};
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