On Sat, Oct 22, 2022 at 02:11:48PM +0200, Linus Walleij wrote: > This adds a simple device tree binding for a GPIO-based > VBUS detection PHY. > > Cc: Felipe Balbi <balbi@xxxxxxxxxx> > Cc: devicetree@xxxxxxxxxxxxxxx > Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > --- > .../bindings/phy/phy-usb-vbus-gpio.yaml | 47 +++++++++++++++++++ > 1 file changed, 47 insertions(+) > create mode 100644 Documentation/devicetree/bindings/phy/phy-usb-vbus-gpio.yaml > > diff --git a/Documentation/devicetree/bindings/phy/phy-usb-vbus-gpio.yaml b/Documentation/devicetree/bindings/phy/phy-usb-vbus-gpio.yaml > new file mode 100644 > index 000000000000..4e10b58f8235 > --- /dev/null > +++ b/Documentation/devicetree/bindings/phy/phy-usb-vbus-gpio.yaml > @@ -0,0 +1,47 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/phy/phy-usb-vbus-gpio.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: GPIO-based VBUS detection USB PHY > + > +maintainers: > + - Linus Walleij <linus.walleij@xxxxxxxxxx> > + > +description: A VBUS event occurs when a USB plug is attached to > + a USB host and peripheral, the voltage (VBUS) is exposed from the > + host to the peripheral when the last of the two ends of the > + cable is plugged in. This can be either on the host side or on > + the peripheral side, whichever comes last. It is possible to > + provide a very simple USB VBUS detection mechanism by using a > + GPIO line that will trigger on an edge event on the VBUS > + pin. We already have Vbus GPIOs in the USB connector binding and there is also the usb-nop-transceiver. Surely one of those works for you? Preferably the former. Rob
