| # 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>; |
| }; |
| }; |
| ... |
