Messages in this thread | | | Date | Tue, 30 Nov 2021 11:23:37 +0100 | Subject | Re: [PATCH V2 1/2] dt-bindings: usb: misc: Add binding for Microchip usb2244 Controller | From | Michal Simek <> |
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On 11/30/21 03:11, Rob Herring wrote: > 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@xilinx.com> >> --- >> 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@mail.gmail.com/ >> --- >> .../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@xilinx.com> >> + >> +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. >
Is this fine?
device@1 { compatible = "usb424,2240"; reg = <1>; reset-gpios = <&gpio 2 GPIO_ACTIVE_LOW>; };
If yes, this means that we should use usb driver instead of platform driver.
Thanks, Michal
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