128 lines
3.4 KiB
YAML
128 lines
3.4 KiB
YAML
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
# Copyright (C) 2021 Sebastian Reichel
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/power/supply/bq25890.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Bq25890, bq25892, bq25895 and bq25896 Li-Ion Charger
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Sebastian Reichel <sre@kernel.org>
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: power-supply.yaml#
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
oneOf:
|
||
|
|
- enum:
|
||
|
|
- ti,bq25890
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- ti,bq25892
|
||
|
|
- ti,bq25895
|
||
|
|
- ti,bq25896
|
||
|
|
- const: ti,bq25890
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
interrupts:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
ti,battery-regulation-voltage:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: maximum charging voltage (in uV)
|
||
|
|
|
||
|
|
ti,charge-current:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: maximum charging current (in uA)
|
||
|
|
|
||
|
|
ti,termination-current:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: |
|
||
|
|
charge will be terminated when current in constant-voltage phase
|
||
|
|
drops below this value (in uA)
|
||
|
|
|
||
|
|
ti,precharge-current:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: maximum charge current during precharge phase (in uA)
|
||
|
|
|
||
|
|
ti,minimum-sys-voltage:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: |
|
||
|
|
when battery is charging and it is below minimum system voltage,
|
||
|
|
the system will be regulated above minimum-sys-voltage setting (in uV)
|
||
|
|
|
||
|
|
ti,boost-voltage:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: VBUS voltage level in boost mode (in uV)
|
||
|
|
|
||
|
|
ti,boost-max-current:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: maximum allowed current draw in boost mode (in uA)
|
||
|
|
|
||
|
|
ti,boost-low-freq:
|
||
|
|
description: boost mode frequency will be 500kHz, otherwise 1.5MHz
|
||
|
|
type: boolean
|
||
|
|
|
||
|
|
ti,use-ilim-pin:
|
||
|
|
description: |
|
||
|
|
ILIM resistor will be used and the input current will be the lower
|
||
|
|
between the resistor setting and the IINLIM register setting
|
||
|
|
type: boolean
|
||
|
|
|
||
|
|
ti,thermal-regulation-threshold:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: |
|
||
|
|
temperature above which the charge current is lowered, to avoid overheating
|
||
|
|
(in degrees Celsius). If omitted, the default setting will be used (120 degrees)
|
||
|
|
|
||
|
|
ti,ibatcomp-micro-ohms:
|
||
|
|
description: value of a resistor in series with the battery (in Micro Ohms)
|
||
|
|
|
||
|
|
ti,ibatcomp-clamp-microvolt:
|
||
|
|
description: max. charging voltage adjustment due to expected voltage drop on in-series resistor
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- interrupts
|
||
|
|
- ti,battery-regulation-voltage
|
||
|
|
- ti,charge-current
|
||
|
|
- ti,termination-current
|
||
|
|
- ti,precharge-current
|
||
|
|
- ti,minimum-sys-voltage
|
||
|
|
- ti,boost-voltage
|
||
|
|
- ti,boost-max-current
|
||
|
|
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
||
|
|
i2c0 {
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
|
||
|
|
charger@6a {
|
||
|
|
compatible = "ti,bq25890";
|
||
|
|
reg = <0x6a>;
|
||
|
|
|
||
|
|
interrupt-parent = <&gpio1>;
|
||
|
|
interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
|
||
|
|
|
||
|
|
ti,battery-regulation-voltage = <4200000>;
|
||
|
|
ti,charge-current = <1000000>;
|
||
|
|
ti,termination-current = <50000>;
|
||
|
|
ti,precharge-current = <128000>;
|
||
|
|
ti,minimum-sys-voltage = <3600000>;
|
||
|
|
ti,boost-voltage = <5000000>;
|
||
|
|
ti,boost-max-current = <1000000>;
|
||
|
|
|
||
|
|
ti,use-ilim-pin;
|
||
|
|
ti,thermal-regulation-threshold = <120>;
|
||
|
|
};
|
||
|
|
};
|