linux-kernel - Re: [PATCH v1 1/2] dt-bindings: add binding for USBSS-DRD controller.

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Date:   Thu, 20 Dec 2018 14:01:11 -0600
From:   Rob Herring <robh@...nel.org>
To:     Pawel Laszczak <pawell@...ence.com>
Cc:     devicetree@...r.kernel.org, gregkh@...uxfoundation.org,
        linux-usb@...r.kernel.org, balbi@...nel.org, rogerq@...com,
        linux-kernel@...r.kernel.org, adouglas@...ence.com,
        jbergsagel@...com, nsekhar@...com, nm@...com, sureshp@...ence.com,
        peter.chen@....com, pjez@...ence.com, kurahul@...ence.com
Subject: Re: [PATCH v1 1/2] dt-bindings: add binding for USBSS-DRD controller.

On Mon, Dec 10, 2018 at 12:39:14PM +0000, Pawel Laszczak wrote:
> This patch aim at documenting USB related dt-bindings for the
> Cadence USBSS-DRD controller.
> 
> Signed-off-by: Pawel Laszczak <pawell@...ence.com>
> ---
>  .../devicetree/bindings/usb/cdns3-usb.txt     | 31 +++++++++++++++++++
>  1 file changed, 31 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/cdns3-usb.txt
> 
> diff --git a/Documentation/devicetree/bindings/usb/cdns3-usb.txt b/Documentation/devicetree/bindings/usb/cdns3-usb.txt
> new file mode 100644
> index 000000000000..ae4a255f0b10
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/cdns3-usb.txt

cdns-usb3.txt?

> @@ -0,0 +1,31 @@
> +Binding for the Cadence USBSS-DRD controller
> +
> +Required properties:
> +  - reg: Physical base address and size of the controller's register areas.
> +	 Controller has 3 different regions:
> +	 region 1 - HOST registers area
> +	 region 2 - DEVICE registers area
> +	 region 3 - OTG/DRD registers area
> +  - compatible: Should contain: "cdns,usb3"

Only 1 version of the IP block?

> +  - interrupts: Interrupt specifier. Refer to interrupt bindings.
> +		Driver supports only single interrupt line.
> +                This single interrupt is shared between Device,
> +		host and OTG/DRD part of driver.
> +
> +Optional propertiesi:

typo

> + - maximum-speed : valid arguments are "super-speed", "high-speed" and
> +                   "full-speed"; refer to usb/generic.txt
> + - dr_mode: Should be one of "host", "peripheral" or "otg".
> + - phys: reference to the USB PHY
> + - phy-names: name of the USB PHY, should be "cdns3,usbphy"

Don't need -names when there is only one.

> +
> +
> +Example:
> +	usb@...00000 {
> +		compatible = "cdns,usb3";
> +		interrupts = <USB_IRQ  7 IRQ_TYPE_LEVEL_HIGH>;
> +		reg = <0xf3000000 0x10000	//memory area for HOST registers
> +			0xf3010000 0x10000	//memory area for DEVICE registers
> +			0xf3020000 0x10000>;	//memory area for OTG/DRD registers
> +	};
> +
> -- 
> 2.17.1
>