bq25980.yaml

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    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/bq25980.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: TI BQ25980 Flash Charger
    9 
   10 maintainers:
   11   - Andrew Davis <afd@ti.com>
   12 
   13 description: |
   14   The BQ25980, BQ25975, and BQ25960 are a series of flash chargers intended
   15   for use in high-power density portable electronics. These inductorless
   16   switching chargers can provide over 97% efficiency by making use of the
   17   switched capacitor architecture.
   18 
   19 allOf:
   20   - $ref: power-supply.yaml#
   21 
   22 properties:
   23   compatible:
   24     enum:
   25       - ti,bq25980
   26       - ti,bq25975
   27       - ti,bq25960
   28 
   29   reg:
   30     maxItems: 1
   31 
   32   ti,watchdog-timeout-ms:
   33     description: |
   34       Watchdog timer in milli seconds. 0 disables the watchdog.
   35     default: 0
   36     minimum: 0
   37     maximum: 300000
   38     enum: [ 0, 5000, 10000, 50000, 300000]
   39 
   40   ti,sc-ovp-limit-microvolt:
   41     description: |
   42       Minimum input voltage limit in micro volts with a when the charger is in
   43       switch cap mode. 100000 micro volt step.
   44     default: 17800000
   45     minimum: 14000000
   46     maximum: 22000000
   47 
   48   ti,sc-ocp-limit-microamp:
   49     description: |
   50       Maximum input current limit in micro amps with a 100000 micro amp step.
   51     minimum: 100000
   52     maximum: 3300000
   53 
   54   ti,bypass-ovp-limit-microvolt:
   55     description: |
   56       Minimum input voltage limit in micro volts with a when the charger is in
   57       switch cap mode. 50000 micro volt step.
   58     minimum: 7000000
   59     maximum: 12750000
   60 
   61   ti,bypass-ocp-limit-microamp:
   62     description: |
   63       Maximum input current limit in micro amps with a 100000 micro amp step.
   64     minimum: 100000
   65     maximum: 3300000
   66 
   67   ti,bypass-enable:
   68     type: boolean
   69     description: Enables bypass mode at boot time
   70 
   71   interrupts:
   72     maxItems: 1
   73     description: |
   74       Indicates that the device state has changed.
   75 
   76   monitored-battery:
   77     $ref: /schemas/types.yaml#/definitions/phandle
   78     description: phandle to the battery node being monitored
   79 
   80 required:
   81   - compatible
   82   - reg
   83   - monitored-battery
   84 
   85 unevaluatedProperties: false
   86 
   87 examples:
   88   - |
   89     bat: battery {
   90       compatible = "simple-battery";
   91       constant-charge-current-max-microamp = <4000000>;
   92       constant-charge-voltage-max-microvolt = <8400000>;
   93       precharge-current-microamp = <160000>;
   94       charge-term-current-microamp = <160000>;
   95     };
   96     #include <dt-bindings/gpio/gpio.h>
   97     #include <dt-bindings/interrupt-controller/irq.h>
   98     i2c0 {
   99       #address-cells = <1>;
  100       #size-cells = <0>;
  101 
  102       bq25980: charger@65 {
  103           compatible = "ti,bq25980";
  104           reg = <0x65>;
  105           interrupt-parent = <&gpio1>;
  106           interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
  107           ti,watchdog-timeout-ms = <0>;
  108           ti,sc-ocp-limit-microamp = <2000000>;
  109           ti,sc-ovp-limit-microvolt = <17800000>;
  110           monitored-battery = <&bat>;
  111       };
  112     };
  113 
  114 ...

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