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# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
# Copyright (C) 2020 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/bq256xx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI bq256xx Switch Mode Buck Charger
maintainers:
- Andrew Davis <afd@ti.com>
description: |
The bq256xx devices are a family of highly-integrated battery charge
management and system power management ICs for single cell Li-ion and Li-
polymer batteries.
Datasheets:
- https://www.ti.com/lit/ds/symlink/bq25600.pdf
- https://www.ti.com/lit/ds/symlink/bq25601.pdf
- https://www.ti.com/lit/ds/symlink/bq25600d.pdf
- https://www.ti.com/lit/ds/symlink/bq25601d.pdf
- https://www.ti.com/lit/ds/symlink/bq25611d.pdf
- https://www.ti.com/lit/ds/symlink/bq25618.pdf
- https://www.ti.com/lit/ds/symlink/bq25619.pdf
properties:
compatible:
enum:
- ti,bq25600
- ti,bq25601
- ti,bq25600d
- ti,bq25601d
- ti,bq25611d
- ti,bq25618
- ti,bq25619
reg:
maxItems: 1
ti,watchdog-timeout-ms:
default: 0
description: |
Watchdog timer in ms. 0 (default) disables the watchdog
minimum: 0
maximum: 160000
enum: [ 0, 40000, 80000, 160000]
input-voltage-limit-microvolt:
description: |
Minimum input voltage limit in µV with a 100000 µV step
minimum: 3900000
maximum: 5400000
input-current-limit-microamp:
description: |
Maximum input current limit in µA with a 100000 µA step
minimum: 100000
maximum: 3200000
monitored-battery:
$ref: /schemas/types.yaml#/definitions/phandle
description: phandle to the battery node being monitored
interrupts:
maxItems: 1
description: |
Interrupt sends an active low, 256 μs pulse to host to report the charger
device status and faults.
ti,no-thermistor:
type: boolean
description: Indicates that no thermistor is connected to the TS pin
required:
- compatible
- reg
- monitored-battery
allOf:
- if:
properties:
compatible:
contains:
enum:
- ti,bq25600
- ti,bq25601
- ti,bq25600d
- ti,bq25601d
then:
properties:
ti,no-thermistor: false
additionalProperties: false
examples:
- |
bat: battery {
compatible = "simple-battery";
constant-charge-current-max-microamp = <2040000>;
constant-charge-voltage-max-microvolt = <4352000>;
precharge-current-microamp = <180000>;
charge-term-current-microamp = <180000>;
};
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
clock-frequency = <400000>;
#address-cells = <1>;
#size-cells = <0>;
charger@6b {
compatible = "ti,bq25601";
reg = <0x6b>;
monitored-battery = <&bat>;
interrupt-parent = <&gpio1>;
interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
ti,watchdog-timeout-ms = <40000>;
input-voltage-limit-microvolt = <4500000>;
input-current-limit-microamp = <2400000>;
};
};
...
|
