On Mon, Nov 22, 2021 at 11:58:33AM +0530, Piyush Mehta wrote: > Microchip's USB224x family of Hi-Speed USB 2.0 flash media card controllers > provides an ultra-fast interface between a USB host controller and flash > media cards. > > Add dt-bindings documentation for Microchip's usb2244 Controller. > USB224x is a USB 2.0 compliant ultra fast USB 2.0 multi-format, > SD/MMC, and MS Flash Media Controllers. > > Signed-off-by: Piyush Mehta <piyush.mehta@xxxxxxxxxx> > --- > Changes for V2: > - Update reset polarity, make reset ACTIVE LOW in the dt-binding document. > - Added usbsd node under the usb controller (usb0) node. > - Remove Warning: decoded text below may be mangled, UTF-8 assumed. > > Review comments: > Link: https://lore.kernel.org/lkml/CAL_JsqKu6vr3iCz1G7MtK6gyqAvn4s4mpuLOwPzJDEmyZeROig@xxxxxxxxxxxxxx/ > --- > .../devicetree/bindings/usb/microchip,usb2244.yaml | 47 ++++++++++++++++++++++ > 1 file changed, 47 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/microchip,usb2244.yaml > > diff --git a/Documentation/devicetree/bindings/usb/microchip,usb2244.yaml b/Documentation/devicetree/bindings/usb/microchip,usb2244.yaml > new file mode 100644 > index 0000000..1854313 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/microchip,usb2244.yaml > @@ -0,0 +1,47 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/usb/microchip,usb2244.yaml#"; > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; > + > +title: Bindings for the Microchip USB2244 Ultra Fast USB-SD Controller > + > +description: > + Microchip USB224x is a USB 2.0 compliant, Hi-Speed bulk only mass > + storage class peripheral controller intended for reading and writing > + to popular flash media from the xDPicture Card, Memory Stick (MS), > + Secure Digital (SD), and MultiMediaCard (MMC) families. > + > + USB224x is a flash media card reader solution fully compliant with the > + USB 2.0 specification. > + > +maintainers: > + - Piyush Mehta <piyush.mehta@xxxxxxxxxx> > + > +properties: > + compatible: > + const: microchip,usb2244 > + > + reset-gpios: > + maxItems: 1 > + description: > + The phandle and specifier for the GPIO that controls the RESET line of > + flash media controller. > + > +required: > + - compatible > + - reset-gpios > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + usb0 { > + usbsd { > + compatible = "microchip,usb2244"; > + reset-gpios = <&gpio 2 GPIO_ACTIVE_LOW>; > + }; This is not how the USB device binding works. See usb-device.yaml. > + }; > + > +... > -- > 2.7.4 > >
