| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/power/supply/summit,smb347-charger.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Battery charger driver for SMB345, SMB347 and SMB358 |
| |
| maintainers: |
| - David Heidelberg <david@ixit.cz> |
| - Dmitry Osipenko <digetx@gmail.com> |
| |
| properties: |
| compatible: |
| enum: |
| - summit,smb345 |
| - summit,smb347 |
| - summit,smb358 |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| monitored-battery: |
| description: phandle to the battery node |
| $ref: /schemas/types.yaml#/definitions/phandle |
| |
| summit,enable-usb-charging: |
| type: boolean |
| description: Enable charging through USB. |
| |
| summit,enable-otg-charging: |
| type: boolean |
| description: Provide power for USB OTG |
| |
| summit,enable-mains-charging: |
| type: boolean |
| description: Enable charging through mains |
| |
| summit,enable-charge-control: |
| description: Enable charging control |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| enum: |
| - 0 # SMB3XX_CHG_ENABLE_SW SW (I2C interface) |
| - 1 # SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW Pin control (Active Low) |
| - 2 # SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH Pin control (Active High) |
| |
| summit,fast-voltage-threshold-microvolt: |
| description: Voltage threshold to transit to fast charge mode (in uV) |
| minimum: 2400000 |
| maximum: 3000000 |
| |
| summit,mains-current-limit-microamp: |
| description: Maximum input current from AC/DC input (in uA) |
| |
| summit,usb-current-limit-microamp: |
| description: Maximum input current from USB input (in uA) |
| |
| summit,charge-current-compensation-microamp: |
| description: Charge current compensation (in uA) |
| |
| summit,chip-temperature-threshold-celsius: |
| description: Chip temperature for thermal regulation in °C. |
| enum: [100, 110, 120, 130] |
| |
| summit,soft-compensation-method: |
| description: Soft temperature limit compensation method |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| enum: |
| - 0 # SMB3XX_SOFT_TEMP_COMPENSATE_NONE Compensation none |
| - 1 # SMB3XX_SOFT_TEMP_COMPENSATE_CURRENT Current compensation |
| - 2 # SMB3XX_SOFT_TEMP_COMPENSATE_VOLTAGE Voltage compensation |
| |
| summit,inok-polarity: |
| description: | |
| Polarity of INOK signal indicating presence of external power supply. |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| enum: |
| - 0 # SMB3XX_SYSOK_INOK_ACTIVE_LOW |
| - 1 # SMB3XX_SYSOK_INOK_ACTIVE_HIGH |
| |
| usb-vbus: |
| $ref: /schemas/regulator/regulator.yaml# |
| type: object |
| |
| properties: |
| summit,needs-inok-toggle: |
| type: boolean |
| description: INOK signal is fixed and polarity needs to be toggled |
| in order to enable/disable output mode. |
| |
| unevaluatedProperties: false |
| |
| allOf: |
| - if: |
| properties: |
| compatible: |
| enum: |
| - summit,smb345 |
| - summit,smb358 |
| |
| then: |
| properties: |
| summit,mains-current-limit-microamp: |
| enum: [ 300000, 500000, 700000, 1000000, |
| 1500000, 1800000, 2000000] |
| |
| summit,usb-current-limit-microamp: |
| enum: [ 300000, 500000, 700000, 1000000, |
| 1500000, 1800000, 2000000] |
| |
| summit,charge-current-compensation-microamp: |
| enum: [200000, 450000, 600000, 900000] |
| |
| else: |
| properties: |
| summit,mains-current-limit-microamp: |
| enum: [ 300000, 500000, 700000, 900000, 1200000, |
| 1500000, 1800000, 2000000, 2200000, 2500000] |
| |
| summit,usb-current-limit-microamp: |
| enum: [ 300000, 500000, 700000, 900000, 1200000, |
| 1500000, 1800000, 2000000, 2200000, 2500000] |
| |
| summit,charge-current-compensation-microamp: |
| enum: [250000, 700000, 900000, 1200000] |
| |
| required: |
| - compatible |
| - reg |
| |
| anyOf: |
| - required: |
| - summit,enable-usb-charging |
| - required: |
| - summit,enable-otg-charging |
| - required: |
| - summit,enable-mains-charging |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/power/summit,smb347-charger.h> |
| |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| charger@7f { |
| compatible = "summit,smb347"; |
| reg = <0x7f>; |
| |
| summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH>; |
| summit,inok-polarity = <SMB3XX_SYSOK_INOK_ACTIVE_LOW>; |
| summit,chip-temperature-threshold-celsius = <110>; |
| summit,mains-current-limit-microamp = <2000000>; |
| summit,usb-current-limit-microamp = <500000>; |
| summit,enable-usb-charging; |
| summit,enable-mains-charging; |
| |
| monitored-battery = <&battery>; |
| |
| usb-vbus { |
| regulator-name = "usb_vbus"; |
| regulator-min-microvolt = <5000000>; |
| regulator-max-microvolt = <5000000>; |
| regulator-min-microamp = <750000>; |
| regulator-max-microamp = <750000>; |
| summit,needs-inok-toggle; |
| }; |
| }; |
| }; |
| |
| battery: battery-cell { |
| compatible = "simple-battery"; |
| constant-charge-current-max-microamp = <1800000>; |
| operating-range-celsius = <0 45>; |
| alert-celsius = <3 42>; |
| }; |
