On Wed, Dec 28, 2022 at 10:03:17AM +0000, Anand Moon wrote: > The VIA Lab VL817-Q7 is a USB 3.1 Gen 1 4-Port hub controller that > features 4 downstream ports, an internal 5V regulator and has > external reset pin. > > Add a device tree binding for its USB protocol part. > The internal LDO is not covered by this and can just be modelled > as a fixed regulator. > > Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx> > --- > .../bindings/usb/vialab,vl817q7.yaml | 47 +++++++++++++++++++ > 1 file changed, 47 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/vialab,vl817q7.yaml > > diff --git a/Documentation/devicetree/bindings/usb/vialab,vl817q7.yaml b/Documentation/devicetree/bindings/usb/vialab,vl817q7.yaml > new file mode 100644 > index 000000000000..4ae995160fd5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/vialab,vl817q7.yaml > @@ -0,0 +1,47 @@ > +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause > +%YAML 1.2 > +--- > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Via labs VL817Q7 USB 3.1 hub controller nit: VIA Labs VL817-Q7 > + > +maintainers: > + - Anand Moon <linux.amoon@xxxxxxxxx> > + > +allOf: > + - $ref: usb-device.yaml# > + > +properties: > + compatible: > + enum: > + - vialab,usb2109 This is not a valid compatible string as Johan already noted. Besides that the VL817-Q7 provides both a 3.1 and a 2.0 USB hub, which are enumerated separately. Please also add a compatible string for the 2.0 hub (assuming 0x2109 is the 3.1 hub). > + > + reg: true > + > + reset-gpios: > + description: GPIO controlling the RESET# pin. > + > + vdd-supply: > + description: > + the regulator that provides 5.0V core power to the hub. > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + usb { > + dr_mode = "host"; > + #address-cells = <1>; > + #size-cells = <0>; > + > + hub: hub@1 { > + compatible = "vialab,usb2109" > + reg = <1>; > + reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>; > + }; Please also add a node for the other hub and link the two nodes with each other through the 'peer-hub' property. See realtek,rts5411.yaml for reference.
