110 lines
2.8 KiB
YAML
110 lines
2.8 KiB
YAML
|
# 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.
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- monitored-battery
|
||
|
|
|
||
|
|
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>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
...
|