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dt-bindings: power: supply: max17040: Add DT bindings for max17040 fuel gauge

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Documentation of max17040 based fuel gauge characteristics.
For configure low level state of charge threshold alert signaled from
max17043/max17044 we add "maxim,alert-low-soc-level" property.

Signed-off-by: Matheus Castello <matheus@castello.eng.br>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Matheus Castello 2019-12-05 12:44:07 -03:00 committed by Sebastian Reichel
parent 058d42563a
commit 7a8bac169a
1 changed files with 33 additions and 0 deletions
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Documentation/devicetree/bindings/power/supply/max17040_battery.txt Normal file
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max17040_battery
~~~~~~~~~~~~~~~~
Required properties :
- compatible : "maxim,max17040" or "maxim,max77836-battery"
- reg: i2c slave address
Optional properties :
- maxim,alert-low-soc-level : The alert threshold that sets the state of
charge level (%) where an interrupt is
generated. Can be configured from 1 up to 32
(%). If skipped the power up default value of
4 (%) will be used.
- interrupts : Interrupt line see Documentation/devicetree/
bindings/interrupt-controller/interrupts.txt
- wakeup-source : This device has wakeup capabilities. Use this
property to use alert low SOC level interrupt
as wake up source.
Optional properties support interrupt functionality for alert low state of
charge level, present in some ICs in the same family, and should be used with
compatible "maxim,max77836-battery".
Example:
battery-fuel-gauge@36 {
compatible = "maxim,max77836-battery";
reg = <0x36>;
maxim,alert-low-soc-level = <10>;
interrupt-parent = <&gpio7>;
interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
wakeup-source;
};