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>; + }; + }; + +... -- 2.7.4
