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110 lines
2.8 KiB
110 lines
2.8 KiB
# 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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- Ricardo Rivera-Matos <[email protected]> |
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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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$ref: /schemas/types.yaml#/definitions/uint32 |
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default: 0 |
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description: | |
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Watchdog timer in ms. 0 (default) disables the watchdog |
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minimum: 0 |
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maximum: 160000 |
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enum: [ 0, 40000, 80000, 160000] |
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input-voltage-limit-microvolt: |
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description: | |
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Minimum input voltage limit in µV with a 100000 µV step |
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minimum: 3900000 |
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maximum: 5400000 |
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input-current-limit-microamp: |
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description: | |
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Maximum input current limit in µA with a 100000 µA step |
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minimum: 100000 |
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maximum: 3200000 |
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monitored-battery: |
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$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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