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dt-bindings: power: supply: smb347-charger: Document USB VBUS regulator
SMB347 can supply power to USB VBUS, which is required by OTG-cable devices that want to switch USB port into the host mode. Add USB VBUS regulator properties. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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@ -73,6 +73,26 @@ properties:
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- 1 # SMB3XX_SOFT_TEMP_COMPENSATE_CURRENT Current compensation
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- 2 # SMB3XX_SOFT_TEMP_COMPENSATE_VOLTAGE Voltage compensation
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summit,inok-polarity:
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description: |
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Polarity of INOK signal indicating presence of external power supply.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum:
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- 0 # SMB3XX_SYSOK_INOK_ACTIVE_LOW
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- 1 # SMB3XX_SYSOK_INOK_ACTIVE_HIGH
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usb-vbus:
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$ref: "../../regulator/regulator.yaml#"
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type: object
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properties:
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summit,needs-inok-toggle:
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type: boolean
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description: INOK signal is fixed and polarity needs to be toggled
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in order to enable/disable output mode.
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unevaluatedProperties: false
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allOf:
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- if:
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properties:
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@ -134,6 +154,7 @@ examples:
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reg = <0x7f>;
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summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH>;
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summit,inok-polarity = <SMB3XX_SYSOK_INOK_ACTIVE_LOW>;
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summit,chip-temperature-threshold-celsius = <110>;
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summit,mains-current-limit-microamp = <2000000>;
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summit,usb-current-limit-microamp = <500000>;
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@ -141,6 +162,15 @@ examples:
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summit,enable-mains-charging;
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monitored-battery = <&battery>;
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usb-vbus {
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regulator-name = "usb_vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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regulator-min-microamp = <750000>;
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regulator-max-microamp = <750000>;
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summit,needs-inok-toggle;
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};
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};
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};
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@ -16,4 +16,8 @@
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#define SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW 1
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#define SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH 2
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/* Polarity of INOK signal */
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#define SMB3XX_SYSOK_INOK_ACTIVE_LOW 0
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#define SMB3XX_SYSOK_INOK_ACTIVE_HIGH 1
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#endif
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