65 lines
2.3 KiB
Plaintext
65 lines
2.3 KiB
Plaintext
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Binding for TI bq24250/bq24251/bq24257 Li-Ion Charger
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Required properties:
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- compatible: Should contain one of the following:
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* "ti,bq24250"
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* "ti,bq24251"
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* "ti,bq24257"
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- reg: integer, i2c address of the device.
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- interrupt-parent: Should be the phandle for the interrupt controller. Use in
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conjunction with "interrupts".
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- interrupts: Interrupt mapping for GPIO IRQ (configure for both edges). Use in
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conjunction with "interrupt-parent".
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- ti,battery-regulation-voltage: integer, maximum charging voltage in uV.
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- ti,charge-current: integer, maximum charging current in uA.
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- ti,termination-current: integer, charge will be terminated when current in
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constant-voltage phase drops below this value (in uA).
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Optional properties:
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- pg-gpios: GPIO used for connecting the bq2425x device PG (Power Good) pin.
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This pin is not available on all devices however it should be used if
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possible as this is the recommended way to obtain the charger's input PG
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state. If this pin is not specified a software-based approach for PG
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detection is used.
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- ti,current-limit: The maximum current to be drawn from the charger's input
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(in uA). If this property is not specified, the input limit current is
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set automatically using USB D+/D- signal based charger type detection.
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If the hardware does not support the D+/D- based detection, a default
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of 500,000 is used (=500mA) instead.
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- ti,ovp-voltage: Configures the over voltage protection voltage (in uV). If
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not specified a default of 6,5000,000 (=6.5V) is used.
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- ti,in-dpm-voltage: Configures the threshold input voltage for the dynamic
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power path management (in uV). If not specified a default of 4,360,000
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(=4.36V) is used.
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Example:
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bq24257 {
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compatible = "ti,bq24257";
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reg = <0x6a>;
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interrupt-parent = <&gpio1>;
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interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
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pg-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
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ti,battery-regulation-voltage = <4200000>;
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ti,charge-current = <1000000>;
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ti,termination-current = <50000>;
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};
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Example:
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bq24250 {
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compatible = "ti,bq24250";
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reg = <0x6a>;
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interrupt-parent = <&gpio1>;
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interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
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ti,battery-regulation-voltage = <4200000>;
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ti,charge-current = <500000>;
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ti,termination-current = <50000>;
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ti,current-limit = <900000>;
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ti,ovp-voltage = <9500000>;
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ti,in-dpm-voltage = <4440000>;
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};
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