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max8903: adds documentation for device tree bindings. 

Signed-off-by: Chris Lapa <chris@lapa.com.au>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Chris Lapa 2016-06-24 12:26:06 +10:00 committed by Sebastian Reichel
parent e6518a4325
commit 4aff217e77
1 changed files with 25 additions and 0 deletions
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Documentation/devicetree/bindings/power/max8903-charger.txt Normal file
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Maxim Semiconductor MAX8903 Battery Charger bindings
Required properties:
- compatible: "maxim,max8903" for MAX8903 Battery Charger
- dok-gpios: Valid DC power has been detected (active low, input), optional if uok-gpios is provided
- uok-gpios: Valid USB power has been detected (active low, input), optional if dok-gpios is provided
Optional properties:
- cen-gpios: Charge enable pin (active low, output)
- chg-gpios: Charger status pin (active low, input)
- flt-gpios: Fault pin (active low, output)
- dcm-gpios: Current limit mode setting (DC=1 or USB=0, output)
- usus-gpios: USB suspend pin (active high, output)
Example:
max8903-charger {
compatible = "maxim,max8903";
dok-gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
flt-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>;
chg-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>;
cen-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>;
status = "okay";
};