bq2515x.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 # Copyright (C) 2020 Texas Instruments Incorporated
    3 %YAML 1.2
    4 ---
    5 $id: http://devicetree.org/schemas/power/supply/bq2515x.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: TI bq2515x 500-mA Linear charger family
    9 
   10 maintainers:
   11   - Andrew Davis <afd@ti.com>
   12 
   13 description: |
   14   The BQ2515x family is a highly integrated battery charge management IC that
   15   integrates the most common functions for wearable devices, namely a charger,
   16   an output voltage rail, ADC for battery and system monitoring, and
   17   push-button controller.
   18 
   19   Specifications about the charger can be found at:
   20     http://www.ti.com/lit/ds/symlink/bq25150.pdf
   21     http://www.ti.com/lit/ds/symlink/bq25155.pdf
   22 
   23 properties:
   24   compatible:
   25     enum:
   26       - ti,bq25150
   27       - ti,bq25155
   28 
   29   reg:
   30     maxItems: 1
   31     description: I2C address of the charger.
   32 
   33   ac-detect-gpios:
   34     description: |
   35        GPIO used for connecting the bq2515x device PG (AC Detect)
   36        pin.
   37     maxItems: 1
   38 
   39   reset-gpios:
   40     description: GPIO used for hardware reset.
   41     maxItems: 1
   42 
   43   powerdown-gpios:
   44     description: GPIO used for low power mode of IC.
   45     maxItems: 1
   46 
   47   charge-enable-gpios:
   48     description: GPIO used to turn on and off charging.
   49     maxItems: 1
   50 
   51   input-current-limit-microamp:
   52     description: Maximum input current in micro Amps.
   53     minimum: 50000
   54     maximum: 500000
   55 
   56   monitored-battery:
   57     $ref: /schemas/types.yaml#/definitions/phandle
   58     description: phandle to the battery node being monitored
   59 
   60 required:
   61   - compatible
   62   - reg
   63   - monitored-battery
   64 
   65 additionalProperties: false
   66 
   67 examples:
   68   - |
   69     bat: battery {
   70       compatible = "simple-battery";
   71       constant-charge-current-max-microamp = <50000>;
   72       precharge-current-microamp = <2500>;
   73       constant-charge-voltage-max-microvolt = <4000000>;
   74     };
   75     #include <dt-bindings/gpio/gpio.h>
   76     i2c0 {
   77       #address-cells = <1>;
   78       #size-cells = <0>;
   79 
   80       bq25150: charger@6b {
   81         compatible = "ti,bq25150";
   82         reg = <0x6b>;
   83         monitored-battery = <&bat>;
   84         input-current-limit-microamp = <100000>;
   85 
   86         ac-detect-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
   87         reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
   88         powerdown-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
   89         charge-enable-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
   90       };
   91     };

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sys/contrib/device-tree/Bindings/power/supply/bq2515x.yaml