sc27xx-fg.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/sc27xx-fg.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Spreadtrum SC27XX PMICs Fuel Gauge Unit Power Supply Bindings
    8 
    9 maintainers:
   10   - Sebastian Reichel <sre@kernel.org>
   11 
   12 allOf:
   13   - $ref: power-supply.yaml#
   14 
   15 properties:
   16   compatible:
   17     enum:
   18       - sprd,sc2720-fgu
   19       - sprd,sc2721-fgu
   20       - sprd,sc2723-fgu
   21       - sprd,sc2730-fgu
   22       - sprd,sc2731-fgu
   23 
   24   reg:
   25     maxItems: 1
   26 
   27   battery-detect-gpios:
   28     maxItems: 1
   29 
   30   io-channels:
   31     items:
   32       - description: Battery Temperature ADC
   33       - description: Battery Charge Voltage ADC
   34 
   35   io-channel-names:
   36     items:
   37       - const: bat-temp
   38       - const: charge-vol
   39 
   40   nvmem-cells:
   41     maxItems: 1
   42     description: Calibration cells provided by eFuse device
   43 
   44   nvmem-cell-names:
   45     const: fgu_calib
   46 
   47   sprd,calib-resistance-micro-ohms:
   48     description: real resistance of coulomb counter chip in micro Ohms
   49 
   50   monitored-battery: true
   51 
   52 required:
   53   - compatible
   54   - reg
   55   - battery-detect-gpios
   56   - io-channels
   57   - io-channel-names
   58   - nvmem-cells
   59   - nvmem-cell-names
   60   - sprd,calib-resistance-micro-ohms
   61   - monitored-battery
   62 
   63 additionalProperties: false
   64 
   65 examples:
   66   - |
   67     #include <dt-bindings/gpio/gpio.h>
   68     bat: battery {
   69       compatible = "simple-battery";
   70       charge-full-design-microamp-hours = <1900000>;
   71       constant-charge-voltage-max-microvolt = <4350000>;
   72       ocv-capacity-celsius = <20>;
   73       ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>,
   74                              <4022000 85>, <3983000 80>, <3949000 75>,
   75                              <3917000 70>, <3889000 65>, <3864000 60>,
   76                              <3835000 55>, <3805000 50>, <3787000 45>,
   77                              <3777000 40>, <3773000 35>, <3770000 30>,
   78                              <3765000 25>, <3752000 20>, <3724000 15>,
   79                              <3680000 10>, <3605000 5>, <3400000 0>;
   80                              // ...
   81     };
   82 
   83     pmic {
   84       #address-cells = <1>;
   85       #size-cells = <0>;
   86 
   87       battery@a00 {
   88         compatible = "sprd,sc2731-fgu";
   89         reg = <0xa00>;
   90         battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
   91         io-channels = <&pmic_adc 5>, <&pmic_adc 14>;
   92         io-channel-names = "bat-temp", "charge-vol";
   93         nvmem-cells = <&fgu_calib>;
   94         nvmem-cell-names = "fgu_calib";
   95         monitored-battery = <&bat>;
   96         sprd,calib-resistance-micro-ohms = <21500>;
   97       };
   98     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/power/supply/sc27xx-fg.yaml

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sys/contrib/device-tree/Bindings/power/supply/sc27xx-fg.yaml