1# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) 2# Copyright (C) 2020 Texas Instruments Incorporated 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/power/supply/bq256xx.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: TI bq256xx Switch Mode Buck Charger 9 10maintainers: 11 - Andrew Davis <afd@ti.com> 12 13description: | 14 The bq256xx devices are a family of highly-integrated battery charge 15 management and system power management ICs for single cell Li-ion and Li- 16 polymer batteries. 17 18 Datasheets: 19 - https://www.ti.com/lit/ds/symlink/bq25600.pdf 20 - https://www.ti.com/lit/ds/symlink/bq25601.pdf 21 - https://www.ti.com/lit/ds/symlink/bq25600d.pdf 22 - https://www.ti.com/lit/ds/symlink/bq25601d.pdf 23 - https://www.ti.com/lit/ds/symlink/bq25611d.pdf 24 - https://www.ti.com/lit/ds/symlink/bq25618.pdf 25 - https://www.ti.com/lit/ds/symlink/bq25619.pdf 26 27properties: 28 compatible: 29 enum: 30 - ti,bq25600 31 - ti,bq25601 32 - ti,bq25600d 33 - ti,bq25601d 34 - ti,bq25611d 35 - ti,bq25618 36 - ti,bq25619 37 38 reg: 39 maxItems: 1 40 41 ti,watchdog-timeout-ms: 42 default: 0 43 description: | 44 Watchdog timer in ms. 0 (default) disables the watchdog 45 minimum: 0 46 maximum: 160000 47 enum: [ 0, 40000, 80000, 160000] 48 49 input-voltage-limit-microvolt: 50 description: | 51 Minimum input voltage limit in µV with a 100000 µV step 52 minimum: 3900000 53 maximum: 5400000 54 55 input-current-limit-microamp: 56 description: | 57 Maximum input current limit in µA with a 100000 µA step 58 minimum: 100000 59 maximum: 3200000 60 61 monitored-battery: 62 $ref: /schemas/types.yaml#/definitions/phandle 63 description: phandle to the battery node being monitored 64 65 interrupts: 66 maxItems: 1 67 description: | 68 Interrupt sends an active low, 256 μs pulse to host to report the charger 69 device status and faults. 70 71required: 72 - compatible 73 - reg 74 - monitored-battery 75 76additionalProperties: false 77 78examples: 79 - | 80 bat: battery { 81 compatible = "simple-battery"; 82 constant-charge-current-max-microamp = <2040000>; 83 constant-charge-voltage-max-microvolt = <4352000>; 84 precharge-current-microamp = <180000>; 85 charge-term-current-microamp = <180000>; 86 }; 87 #include <dt-bindings/gpio/gpio.h> 88 #include <dt-bindings/interrupt-controller/irq.h> 89 i2c { 90 91 clock-frequency = <400000>; 92 93 #address-cells = <1>; 94 #size-cells = <0>; 95 96 charger@6b { 97 compatible = "ti,bq25601"; 98 reg = <0x6b>; 99 monitored-battery = <&bat>; 100 101 interrupt-parent = <&gpio1>; 102 interrupts = <16 IRQ_TYPE_EDGE_FALLING>; 103 ti,watchdog-timeout-ms = <40000>; 104 105 input-voltage-limit-microvolt = <4500000>; 106 input-current-limit-microamp = <2400000>; 107 }; 108 }; 109... 110