bq24257.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 # Copyright (C) 2021 Sebastian Reichel
    3 %YAML 1.2
    4 ---
    5 $id: http://devicetree.org/schemas/power/supply/bq24257.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: Binding for bq24250, bq24251 and bq24257 Li-Ion Charger
    9 
   10 maintainers:
   11   - Sebastian Reichel <sre@kernel.org>
   12 
   13 allOf:
   14   - $ref: power-supply.yaml#
   15 
   16 properties:
   17   compatible:
   18     enum:
   19       - ti,bq24250
   20       - ti,bq24251
   21       - ti,bq24257
   22 
   23   reg:
   24     maxItems: 1
   25 
   26   interrupts:
   27     maxItems: 1
   28 
   29   ti,battery-regulation-voltage:
   30     $ref: /schemas/types.yaml#/definitions/uint32
   31     description: maximum charging voltage in uV
   32 
   33   ti,charge-current:
   34     $ref: /schemas/types.yaml#/definitions/uint32
   35     description: maximum charging current in uA
   36 
   37   ti,termination-current:
   38     $ref: /schemas/types.yaml#/definitions/uint32
   39     description: |
   40       charge will be terminated when current in constant-voltage phase
   41       drops below this value (in uA)
   42 
   43   pg-gpios:
   44     description: |
   45       GPIO used for connecting the bq2425x device PG (Power Good) pin.
   46       This pin is not available on all devices however it should be used if
   47       possible as this is the recommended way to obtain the charger's input PG
   48       state. If this pin is not specified a software-based approach for PG
   49       detection is used.
   50     maxItems: 1
   51 
   52   ti,current-limit:
   53     $ref: /schemas/types.yaml#/definitions/uint32
   54     description: |
   55       The maximum current to be drawn from the charger's input (in uA).
   56       If this property is not specified, the input limit current is set
   57       automatically using USB D+/D- signal based charger type detection.
   58       If the hardware does not support the D+/D- based detection, a default
   59       of 500,000 is used (=500mA) instead.
   60 
   61   ti,ovp-voltage:
   62     $ref: /schemas/types.yaml#/definitions/uint32
   63     description: |
   64       Configures the over voltage protection voltage (in uV).
   65       If not specified a default of 6,5000,000 (=6.5V) is used.
   66 
   67   ti,in-dpm-voltage:
   68     $ref: /schemas/types.yaml#/definitions/uint32
   69     description: |
   70       Configures the threshold input voltage for the dynamic power path management (in uV).
   71       If not specified a default of 4,360,000 (=4.36V) is used.
   72 
   73 required:
   74   - compatible
   75   - reg
   76   - interrupts
   77   - ti,battery-regulation-voltage
   78   - ti,charge-current
   79   - ti,termination-current
   80 
   81 additionalProperties: false
   82 
   83 examples:
   84   - |
   85     #include <dt-bindings/gpio/gpio.h>
   86     #include <dt-bindings/interrupt-controller/irq.h>
   87     i2c0 {
   88       #address-cells = <1>;
   89       #size-cells = <0>;
   90 
   91       charger@6a {
   92         compatible = "ti,bq24257";
   93         reg = <0x6a>;
   94         interrupt-parent = <&gpio1>;
   95         interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
   96 
   97         pg-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
   98 
   99         ti,battery-regulation-voltage = <4200000>;
  100         ti,charge-current = <1000000>;
  101         ti,termination-current = <50000>;
  102       };
  103     };
  104   - |
  105     #include <dt-bindings/gpio/gpio.h>
  106     #include <dt-bindings/interrupt-controller/irq.h>
  107     i2c0 {
  108       #address-cells = <1>;
  109       #size-cells = <0>;
  110 
  111       charger@6a {
  112         compatible = "ti,bq24250";
  113         reg = <0x6a>;
  114         interrupt-parent = <&gpio1>;
  115         interrupts = <16 IRQ_TYPE_EDGE_BOTH>;
  116 
  117         ti,battery-regulation-voltage = <4200000>;
  118         ti,charge-current = <500000>;
  119         ti,termination-current = <50000>;
  120         ti,current-limit = <900000>;
  121         ti,ovp-voltage = <9500000>;
  122         ti,in-dpm-voltage = <4440000>;
  123       };
  124     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/power/supply/bq24257.yaml

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sys/contrib/device-tree/Bindings/power/supply/bq24257.yaml