On Sun, Jun 07, 2020 at 05:41:05PM +0300, Dmitry Osipenko wrote: > From: David Heidelberg <david@xxxxxxx> > > Summit SMB3xx series is a Programmable Switching Li+ Battery Charger. > This patch adds device-tree binding for Summit SMB345, SMB347 and SMB358 > chargers. > > Signed-off-by: David Heidelberg <david@xxxxxxx> > Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> > --- > .../power/supply/summit,smb347-charger.yaml | 165 ++++++++++++++++++ > .../dt-bindings/power/summit,smb347-charger.h | 19 ++ > 2 files changed, 184 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml > create mode 100644 include/dt-bindings/power/summit,smb347-charger.h > > diff --git a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml > new file mode 100644 > index 000000000000..eea0a6398c95 > --- /dev/null > +++ b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml > @@ -0,0 +1,165 @@ > +# 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@xxxxxxx> > + - Dmitry Osipenko <digetx@xxxxxxxxx> > + > +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 > + allOf: > + - $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) > + allOf: > + - $ref: /schemas/types.yaml#/definitions/uint32 Anything with a standard unit suffix already has a type, so drop. > + minimum: 2400000 > + maximum: 3000000 > + > + summit,mains-current-limit-microamp: > + description: Maximum input current from AC/DC input (in uA) > + allOf: > + - $ref: /schemas/types.yaml#/definitions/uint32 > + > + summit,usb-current-limit-microamp: > + description: Maximum input current from USB input (in uA) > + allOf: > + - $ref: /schemas/types.yaml#/definitions/uint32 > + > + summit,charge-current-compensation-microamp: > + description: Charge current compensation (in uA) > + allOf: > + - $ref: /schemas/types.yaml#/definitions/uint32 > + > + summit,chip-temperature-threshold-celsius: > + description: Chip temperature for thermal regulation in °C. > + allOf: > + - $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [100, 110, 120, 130] > + > + summit,soft-compensation-method: > + description: Soft temperature limit compensation method > + allOf: > + - $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 > + > +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>; > + status = "okay"; > + > + summit,enable-charge-control = <SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH>; > + 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>; > + }; > + }; > + > + battery: battery-cell { > + compatible = "simple-battery"; > + constant-charge-current-max-microamp = <1800000>; > + temperature-min-alert-celsius = <5>; > + temperature-max-alert-celsius = <40>; > + }; > diff --git a/include/dt-bindings/power/summit,smb347-charger.h b/include/dt-bindings/power/summit,smb347-charger.h > new file mode 100644 > index 000000000000..d918bf321a71 > --- /dev/null > +++ b/include/dt-bindings/power/summit,smb347-charger.h > @@ -0,0 +1,19 @@ > +/* SPDX-License-Identifier: (GPL-2.0-or-later or MIT) */ > +/* > + * Author: David Heidelberg <david@xxxxxxx> > + */ > + > +#ifndef _DT_BINDINGS_SMB347_CHARGER_H > +#define _DT_BINDINGS_SMB347_CHARGER_H > + > +/* Charging compensation method */ > +#define SMB3XX_SOFT_TEMP_COMPENSATE_NONE 0 > +#define SMB3XX_SOFT_TEMP_COMPENSATE_CURRENT 1 > +#define SMB3XX_SOFT_TEMP_COMPENSATE_VOLTAGE 2 > + > +/* Charging enable control */ > +#define SMB3XX_CHG_ENABLE_SW 0 > +#define SMB3XX_CHG_ENABLE_PIN_ACTIVE_LOW 1 > +#define SMB3XX_CHG_ENABLE_PIN_ACTIVE_HIGH 2 > + > +#endif > -- > 2.26.0 >
