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dt-bindings: power: supply: smb347-charger: Document USB VBUS regulator

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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>
This commit is contained in:
Dmitry Osipenko 2021-07-31 20:38:35 +03:00 committed by Sebastian Reichel
parent 80698507e0
commit 3e81bd7dfb
2 changed files with 34 additions and 0 deletions
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30
Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
View file

@ -73,6 +73,26 @@ properties:
- 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: "../../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:
@ -134,6 +154,7 @@ examples:
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>;
@ -141,6 +162,15 @@ examples:
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;
};
};
};

4
include/dt-bindings/power/summit,smb347-charger.h
View file

@ -16,4 +16,8 @@
#define SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW 1
#define SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH 2
/* Polarity of INOK signal */
#define SMB3XX_SYSOK_INOK_ACTIVE_LOW 0
#define SMB3XX_SYSOK_INOK_ACTIVE_HIGH 1
#endif