lltc,ltc294x.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/power/supply/lltc,ltc294x.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Binding for LTC2941, LTC2942, LTC2943 and LTC2944 battery fuel gauges
    8 
    9 description: |
   10   All chips measure battery capacity.
   11   The LTC2942 is pin compatible with the LTC2941, it adds voltage and
   12   temperature monitoring, and is runtime detected. LTC2943 and LTC2944
   13   are software compatible, uses a slightly different conversion formula
   14   for the charge counter and adds voltage, current and temperature monitoring.
   15 
   16 maintainers:
   17   - Sebastian Reichel <sre@kernel.org>
   18 
   19 allOf:
   20   - $ref: power-supply.yaml#
   21 
   22 properties:
   23   compatible:
   24     enum:
   25       - lltc,ltc2941
   26       - lltc,ltc2942
   27       - lltc,ltc2943
   28       - lltc,ltc2944
   29 
   30   reg:
   31     maxItems: 1
   32 
   33   lltc,resistor-sense:
   34     $ref: /schemas/types.yaml#/definitions/int32
   35     description: |
   36       Sense resistor value in milli-ohms.
   37       Can be negative value when the battery has been connected to the wrong end of the resistor.
   38 
   39   lltc,prescaler-exponent:
   40     $ref: /schemas/types.yaml#/definitions/uint32
   41     description: |
   42       The prescaler exponent as explained in the datasheet.
   43       This determines the range and accuracy of the gauge.
   44       The value is programmed into the chip only if it differs from the current setting.
   45       The setting is lost when the battery is disconnected.
   46 
   47 required:
   48   - compatible
   49   - reg
   50   - lltc,resistor-sense
   51   - lltc,prescaler-exponent
   52 
   53 additionalProperties: false
   54 
   55 examples:
   56   - |
   57     i2c0 {
   58       #address-cells = <1>;
   59       #size-cells = <0>;
   60       battery@64 {
   61         compatible = "lltc,ltc2943";
   62         reg = <0x64>;
   63         lltc,resistor-sense = <15>;
   64         lltc,prescaler-exponent = <5>; /* 2^(2*5) = 1024 */
   65       };
   66     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/power/supply/lltc,ltc294x.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/power/supply/lltc,ltc294x.yaml