1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: "http://devicetree.org/schemas/power/supply/summit,smb347-charger.yaml#"
  5$schema: "http://devicetree.org/meta-schemas/core.yaml#"
  6
  7title: Battery charger driver for SMB345, SMB347 and SMB358
  8
  9maintainers:
 10  - David Heidelberg <david@ixit.cz>
 11  - Dmitry Osipenko <digetx@gmail.com>
 12
 13properties:
 14  compatible:
 15    enum:
 16      - summit,smb345
 17      - summit,smb347
 18      - summit,smb358
 19
 20  reg:
 21    maxItems: 1
 22
 23  interrupts:
 24    maxItems: 1
 25
 26  monitored-battery:
 27    description: phandle to the battery node
 28    $ref: /schemas/types.yaml#/definitions/phandle
 29
 30  summit,enable-usb-charging:
 31    type: boolean
 32    description: Enable charging through USB.
 33
 34  summit,enable-otg-charging:
 35    type: boolean
 36    description: Provide power for USB OTG
 37
 38  summit,enable-mains-charging:
 39    type: boolean
 40    description: Enable charging through mains
 41
 42  summit,enable-charge-control:
 43    description: Enable charging control
 44    $ref: /schemas/types.yaml#/definitions/uint32
 45    enum:
 46      - 0 # SMB3XX_CHG_ENABLE_SW SW (I2C interface)
 47      - 1 # SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW Pin control (Active Low)
 48      - 2 # SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH Pin control (Active High)
 49
 50  summit,fast-voltage-threshold-microvolt:
 51    description: Voltage threshold to transit to fast charge mode (in uV)
 52    minimum: 2400000
 53    maximum: 3000000
 54
 55  summit,mains-current-limit-microamp:
 56    description: Maximum input current from AC/DC input (in uA)
 57
 58  summit,usb-current-limit-microamp:
 59    description: Maximum input current from USB input (in uA)
 60
 61  summit,charge-current-compensation-microamp:
 62    description: Charge current compensation (in uA)
 63
 64  summit,chip-temperature-threshold-celsius:
 65    description: Chip temperature for thermal regulation in °C.
 66    enum: [100, 110, 120, 130]
 67
 68  summit,soft-compensation-method:
 69    description: Soft temperature limit compensation method
 70    $ref: /schemas/types.yaml#/definitions/uint32
 71    enum:
 72      - 0 # SMB3XX_SOFT_TEMP_COMPENSATE_NONE Compensation none
 73      - 1 # SMB3XX_SOFT_TEMP_COMPENSATE_CURRENT Current compensation
 74      - 2 # SMB3XX_SOFT_TEMP_COMPENSATE_VOLTAGE Voltage compensation
 75
 76allOf:
 77  - if:
 78      properties:
 79        compatible:
 80          enum:
 81            - summit,smb345
 82            - summit,smb358
 83
 84    then:
 85      properties:
 86        summit,mains-current-limit-microamp:
 87          enum: [ 300000, 500000, 700000, 1000000,
 88                  1500000, 1800000, 2000000]
 89
 90        summit,usb-current-limit-microamp:
 91          enum: [ 300000, 500000, 700000, 1000000,
 92                  1500000, 1800000, 2000000]
 93
 94        summit,charge-current-compensation-microamp:
 95          enum: [200000, 450000, 600000, 900000]
 96
 97    else:
 98      properties:
 99        summit,mains-current-limit-microamp:
100          enum: [ 300000, 500000, 700000, 900000, 1200000,
101                  1500000, 1800000, 2000000, 2200000, 2500000]
102
103        summit,usb-current-limit-microamp:
104          enum: [ 300000, 500000, 700000, 900000, 1200000,
105                  1500000, 1800000, 2000000, 2200000, 2500000]
106
107        summit,charge-current-compensation-microamp:
108          enum: [250000, 700000, 900000, 1200000]
109
110required:
111  - compatible
112  - reg
113
114anyOf:
115  - required:
116      - summit,enable-usb-charging
117  - required:
118      - summit,enable-otg-charging
119  - required:
120      - summit,enable-mains-charging
121
122additionalProperties: false
123
124examples:
125  - |
126    #include <dt-bindings/power/summit,smb347-charger.h>
127
128    i2c {
129        #address-cells = <1>;
130        #size-cells = <0>;
131
132        charger@7f {
133            compatible = "summit,smb347";
134            reg = <0x7f>;
135
136            summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH>;
137            summit,chip-temperature-threshold-celsius = <110>;
138            summit,mains-current-limit-microamp = <2000000>;
139            summit,usb-current-limit-microamp = <500000>;
140            summit,enable-usb-charging;
141            summit,enable-mains-charging;
142
143            monitored-battery = <&battery>;
144        };
145    };
146
147    battery: battery-cell {
148        compatible = "simple-battery";
149        constant-charge-current-max-microamp = <1800000>;
150        operating-range-celsius = <0 45>;
151        alert-celsius = <3 42>;
152    };