Commit 3e81bd7d authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Sebastian Reichel
Browse files

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: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
parent 80698507

Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml

+30 −0
Original line number Diff line number Diff line
@@ -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;

            };

        };

    };

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

+4 −0
Original line number Diff line number Diff line
@@ -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