[PATCH v3 06/12] dt-bindings: power: supply: smb347-charger: Document USB VBUS regulator
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-07-04 22:56:31
Also in:
linux-pm, linux-tegra, linux-usb, lkml
Subsystem:
open firmware and flattened device tree bindings, power supply class/subsystem and drivers, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sebastian Reichel, Linus Torvalds
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. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- .../power/supply/summit,smb347-charger.yaml | 28 +++++++++++++++++++ .../dt-bindings/power/summit,smb347-charger.h | 4 +++ 2 files changed, 32 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
index 983fc215c1e5..cd3d834f734d 100644
--- a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml@@ -73,6 +73,24 @@ 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. + allOf: - if: properties:
@@ -134,6 +152,7 @@ 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 +160,15 @@ 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; + }; }; };
diff --git a/include/dt-bindings/power/summit,smb347-charger.h b/include/dt-bindings/power/summit,smb347-charger.h
index d918bf321a71..3205699b5e41 100644
--- a/include/dt-bindings/power/summit,smb347-charger.h
+++ b/include/dt-bindings/power/summit,smb347-charger.h@@ -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
--
2.32.0