linux-kernel - Re: [RFC 2/2] usb: gadget: composite: parse dt overrides

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Message-ID: <op.wgg91aya3l0zgt@mpn-glaptop>
Date:	Mon, 25 Jun 2012 23:30:36 +0200
From:	"Michal Nazarewicz" <mina86@...a86.com>
To:	"Felipe Balbi" <balbi@...com>,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Grant Likely" <grant.likely@...retlab.ca>,
	"Rob Herring" <rob.herring@...xeda.com>,
	devicetree-discuss@...ts.ozlabs.org,
	"Alexandre Pereira da Silva" <aletes.xgr@...il.com>
Subject: Re: [RFC 2/2] usb: gadget: composite: parse dt overrides

On Mon, 25 Jun 2012 22:23:52 +0200, Alexandre Pereira da Silva <aletes.xgr@...il.com> wrote:
> Grab the devicetree node properties to override VendorId, ProductId,
> bcdDevice, Manucacturer, Product and SerialNumber
>
> Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@...il.com>

Acked-by: Michal Nazarewicz <mina86@...a86.com>

> @@ -1470,6 +1472,35 @@ static int composite_bind(struct usb_gadget *gadget)
> 	cdev->desc = *composite->dev;
>+	/* grab overrides from devicetree */
> +	if (np) {
> +		u32 reg;
> +
> +		if (!idVendor &&
> +			of_property_read_u32(np, "vendor_id", &reg) == 0)
> +			idVendor = reg;
> +
> +		if (!idProduct &&
> +			of_property_read_u32(np, "product_id", &reg) == 0)
> +			idProduct = reg;
> +
> +		if (!bcdDevice &&
> +			of_property_read_u32(np, "bcd_device", &reg) == 0)
> +			bcdDevice = reg;
> +
> +		if (!iManufacturer)
> +			of_property_read_string(np, "manufacturer",
> +				&iManufacturer);
> +
> +		if (!iProduct)
> +			of_property_read_string(np, "product",
> +				&iProduct);
> +
> +		if (!iSerialNumber)
> +			of_property_read_string(np, "serial_number",
> +				&iSerialNumber);
> +	}
> +
>  	/* standardized runtime overrides for device ID data */
>  	if (idVendor)
>  		cdev->desc.idVendor = cpu_to_le16(idVendor);


-- 
Best regards,                                         _     _
.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
ooo +----<email/xmpp: mpn@...gle.com>--------------ooO--(_)--Ooo--
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