Bindings/power/supply/maxim,max17040.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/power/supply/maxim,max17040.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Maxim 17040 fuel gauge series
   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       - maxim,max17040
  19       - maxim,max17041
  20       - maxim,max17043
  21       - maxim,max17044
  22       - maxim,max17048
  23       - maxim,max17049
  24       - maxim,max17058
  25       - maxim,max17059
  26       - maxim,max77836-battery
  27
  28   reg:
  29     maxItems: 1
  30
  31   maxim,alert-low-soc-level:
  32     $ref: /schemas/types.yaml#/definitions/uint32
  33     minimum: 1
  34     maximum: 32
  35     description: |
  36       The alert threshold that sets the state of charge level (%) where an interrupt is generated.
  37       If skipped the power up default value of 4 (%) will be used.
  38
  39   maxim,double-soc:
  40     type: boolean
  41     description: |
  42       Certain devices return double the capacity.
  43       Specify this to divide the reported value in 2 and thus normalize it.
  44       SoC == State of Charge == Capacity.
  45
  46   maxim,rcomp:
  47     $ref: /schemas/types.yaml#/definitions/uint8-array
  48     minItems: 1
  49     maxItems: 2
  50     description: |
  51       A value to compensate readings for various battery chemistries and operating temperatures.
  52       max17040,41 have 2 byte rcomp, default to 0x97 0x00.
  53       All other devices have one byte rcomp, default to 0x97.
  54
  55   interrupts:
  56     maxItems: 1
  57
  58   io-channels:
  59     items:
  60       - description: battery temperature
  61
  62   io-channel-names:
  63     items:
  64       - const: temp
  65
  66   wakeup-source:
  67     type: boolean
  68     description: |
  69       Use this property to use alert low SoC level interrupt as wake up source.
  70
  71 required:
  72   - compatible
  73   - reg
  74
  75 unevaluatedProperties: false
  76
  77 examples:
  78   - |
  79     i2c {
  80       #address-cells = <1>;
  81       #size-cells = <0>;
  82
  83       battery@36 {
  84         compatible = "maxim,max17048";
  85         reg = <0x36>;
  86         maxim,rcomp = /bits/ 8 <0x56>;
  87         maxim,alert-low-soc-level = <10>;
  88         maxim,double-soc;
  89       };
  90     };
  91   - |
  92     #include <dt-bindings/interrupt-controller/irq.h>
  93     i2c {
  94       #address-cells = <1>;
  95       #size-cells = <0>;
  96
  97       battery@36 {
  98         compatible = "maxim,max77836-battery";
  99         reg = <0x36>;
 100         maxim,alert-low-soc-level = <10>;
 101         interrupt-parent = <&gpio7>;
 102         interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
 103         wakeup-source;
 104       };
 105     };
 106   - |
 107     #include <dt-bindings/interrupt-controller/irq.h>
 108     i2c {
 109       #address-cells = <1>;
 110       #size-cells = <0>;
 111
 112       fuel-gauge@36 {
 113         compatible = "maxim,max17043";
 114         reg = <0x36>;
 115
 116         interrupt-parent = <&gpio>;
 117         interrupts = <144 IRQ_TYPE_EDGE_FALLING>;
 118
 119         monitored-battery = <&battery>;
 120         power-supplies = <&charger>;
 121
 122         io-channels = <&adc 8>;
 123         io-channel-names = "temp";
 124
 125         maxim,alert-low-soc-level = <10>;
 126         wakeup-source;
 127       };
 128     };