mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
fff59df105
Extend the bq24257 charger's device tree documentation to cover the bq24250 and bq24251 devices as well feature additions. Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
65 lines
2.3 KiB
Plaintext
65 lines
2.3 KiB
Plaintext
Binding for TI bq24250/bq24251/bq24257 Li-Ion Charger
|
|
|
|
Required properties:
|
|
- compatible: Should contain one of the following:
|
|
* "ti,bq24250"
|
|
* "ti,bq24251"
|
|
* "ti,bq24257"
|
|
- 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,charge-current: integer, maximum charging current in uA.
|
|
- ti,termination-current: integer, charge will be terminated when current in
|
|
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:
|
|
|
|
bq24257 {
|
|
compatible = "ti,bq24257";
|
|
reg = <0x6a>;
|
|
interrupt-parent = <&gpio1>;
|
|
interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
|
|
|
|
pg-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
|
|
|
|
ti,battery-regulation-voltage = <4200000>;
|
|
ti,charge-current = <1000000>;
|
|
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>;
|
|
};
|