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Commit fff59df1 authored by Andreas Dannenberg's avatar Andreas Dannenberg Committed by Sebastian Reichel
Browse files

dt: power: bq24257-charger: Cover additional devices 



Extend the bq24257 charger's device tree documentation to cover the
bq24250 and bq24251 devices as well feature additions.

Signed-off-by: default avatarAndreas Dannenberg <dannenberg@ti.com>
Reviewed-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: default avatarSebastian Reichel <sre@kernel.org>
parent 3b84b8ef

Documentation/devicetree/bindings/power/bq24257.txt

+48 −5
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Binding for TI bq24257 Li-Ion Charger

Binding for TI bq24250/bq24251/bq24257 Li-Ion Charger





Required properties:

Required properties:

- compatible: Should contain one of the following:

- compatible: Should contain one of the following:

 * "ti,bq24250"

 * "ti,bq24251"

 * "ti,bq24257"

 * "ti,bq24257"

- reg: integer, i2c address of the device.

- reg: integer, i2c address of the device.

- interrupt-parent: Should be the phandle for the interrupt controller. Use in

    conjunction with "interrupts".

- interrupts: Interrupt mapping for GPIO IRQ (configure for both edges). Use in

    conjunction with "interrupt-parent".

- ti,battery-regulation-voltage: integer, maximum charging voltage in uV.

- ti,battery-regulation-voltage: integer, maximum charging voltage in uV.

- ti,charge-current: integer, maximum charging current in uA.

- ti,charge-current: integer, maximum charging current in uA.

- ti,termination-current: integer, charge will be terminated when current in

- ti,termination-current: integer, charge will be terminated when current in

    constant-voltage phase drops below this value (in uA).

    constant-voltage phase drops below this value (in uA).





Optional properties:

- pg-gpios: GPIO used for connecting the bq2425x device PG (Power Good) pin.

    This pin is not available on all devices however it should be used if

    possible as this is the recommended way to obtain the charger's input PG

    state. If this pin is not specified a software-based approach for PG

    detection is used.

- ti,current-limit: The maximum current to be drawn from the charger's input

    (in uA). If this property is not specified, the input limit current is

    set automatically using USB D+/D- signal based charger type detection.

    If the hardware does not support the D+/D- based detection, a default

    of 500,000 is used (=500mA) instead.

- ti,ovp-voltage: Configures the over voltage protection voltage (in uV). If

    not specified a default of 6,5000,000 (=6.5V) is used.

- ti,in-dpm-voltage: Configures the threshold input voltage for the dynamic

    power path management (in uV). If not specified a default of 4,360,000

    (=4.36V) is used.



Example:

Example:





bq24257 {

bq24257 {

	compatible = "ti,bq24257";

	compatible = "ti,bq24257";

	reg = <0x6a>;

	reg = <0x6a>;

	interrupt-parent = <&gpio1>;

	interrupts = <16 IRQ_TYPE_EDGE_BOTH>;



	pg-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;





	ti,battery-regulation-voltage = <4200000>;

	ti,battery-regulation-voltage = <4200000>;

	ti,charge-current = <1000000>;

	ti,charge-current = <1000000>;

	ti,termination-current = <50000>;

	ti,termination-current = <50000>;

};

};



Example:



bq24250 {

	compatible = "ti,bq24250";

	reg = <0x6a>;

	interrupt-parent = <&gpio1>;

	interrupts = <16 IRQ_TYPE_EDGE_BOTH>;



	ti,battery-regulation-voltage = <4200000>;

	ti,charge-current = <500000>;

	ti,termination-current = <50000>;

	ti,current-limit = <900000>;

	ti,ovp-voltage = <9500000>;

	ti,in-dpm-voltage = <4440000>;

};