110 lines
2.8 KiB
YAML
110 lines
2.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
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# Copyright (C) 2020 Texas Instruments Incorporated
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/bq256xx.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: TI bq256xx Switch Mode Buck Charger
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maintainers:
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- Andrew Davis <afd@ti.com>
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description: |
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The bq256xx devices are a family of highly-integrated battery charge
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management and system power management ICs for single cell Li-ion and Li-
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polymer batteries.
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Datasheets:
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- https://www.ti.com/lit/ds/symlink/bq25600.pdf
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- https://www.ti.com/lit/ds/symlink/bq25601.pdf
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- https://www.ti.com/lit/ds/symlink/bq25600d.pdf
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- https://www.ti.com/lit/ds/symlink/bq25601d.pdf
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- https://www.ti.com/lit/ds/symlink/bq25611d.pdf
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- https://www.ti.com/lit/ds/symlink/bq25618.pdf
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- https://www.ti.com/lit/ds/symlink/bq25619.pdf
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properties:
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compatible:
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enum:
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- ti,bq25600
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- ti,bq25601
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- ti,bq25600d
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- ti,bq25601d
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- ti,bq25611d
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- ti,bq25618
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- ti,bq25619
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reg:
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maxItems: 1
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ti,watchdog-timeout-ms:
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default: 0
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description: |
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Watchdog timer in ms. 0 (default) disables the watchdog
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minimum: 0
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maximum: 160000
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enum: [ 0, 40000, 80000, 160000]
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input-voltage-limit-microvolt:
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description: |
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Minimum input voltage limit in µV with a 100000 µV step
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minimum: 3900000
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maximum: 5400000
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input-current-limit-microamp:
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description: |
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Maximum input current limit in µA with a 100000 µA step
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minimum: 100000
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maximum: 3200000
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monitored-battery:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: phandle to the battery node being monitored
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interrupts:
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maxItems: 1
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description: |
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Interrupt sends an active low, 256 μs pulse to host to report the charger
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device status and faults.
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required:
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- compatible
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- reg
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- monitored-battery
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additionalProperties: false
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examples:
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- |
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bat: battery {
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compatible = "simple-battery";
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constant-charge-current-max-microamp = <2040000>;
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constant-charge-voltage-max-microvolt = <4352000>;
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precharge-current-microamp = <180000>;
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charge-term-current-microamp = <180000>;
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};
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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clock-frequency = <400000>;
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#address-cells = <1>;
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#size-cells = <0>;
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charger@6b {
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compatible = "ti,bq25601";
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reg = <0x6b>;
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monitored-battery = <&bat>;
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interrupt-parent = <&gpio1>;
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interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
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ti,watchdog-timeout-ms = <40000>;
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input-voltage-limit-microvolt = <4500000>;
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input-current-limit-microamp = <2400000>;
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};
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};
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...
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