linux-kernel - Re: [PATCH 5/5] usb: add pxa1928 ehci support

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Date:	Thu, 14 May 2015 12:43:28 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Rob Herring <robh@...nel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Kishon Vijay Abraham I <kishon@...com>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: [PATCH 5/5] usb: add pxa1928 ehci support

On Wednesday 13 May 2015 17:49:00 Rob Herring wrote:
> +
> +	/* enable port power and reserved bit 25 */
> +	status = __raw_readl(&ehci_regs->port_status[0]);
> +	status |= (PORT_POWER) | (1 << 25);
> +	/* Clear bits 30:31 for HSIC to be enabled */
> +	status &= ~(0x3 << 30);
> +	__raw_writel(status, &ehci_regs->port_status[0]);
> +
> +	/* test mode: force enable hs */
> +	status = __raw_readl(&ehci_regs->port_status[0]);
> +	status &= ~(0xf << 16);
> +	status |= (0x5 << 16);
> +	__raw_writel(status, &ehci_regs->port_status[0]);
> +
> +	/* disable test mode */
> +	status = __raw_readl(&ehci_regs->port_status[0]);
> +	status &= ~(0xf << 16);
> +	__raw_writel(status, &ehci_regs->port_status[0]);

Please make this endian-safe.
> +
> +static const struct of_device_id mv_ehci_dt_match[] = {
> +	{.compatible = "marvell,pxa1928-ehci"},
> +	{},
> +};
> +MODULE_DEVICE_TABLE(of, mv_ehci_dt_match);

> +static struct platform_driver ehci_mv_driver = {
> +	.probe = mv_ehci_probe,
> +	.remove = mv_ehci_remove,
> +	.shutdown = mv_ehci_shutdown,
> +	.driver = {
> +		   .name = "mv-ehci-of",
> +		   .of_match_table = of_match_ptr(mv_ehci_dt_match),
> +		   },
> +};

Warning: unused symbol 'mv_ehci_dt_match'.

Just remove the of_match_ptr().

	Arnd
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