linux-kernel - Re: [PATCH 2/2 v3] usb: ohci: remove ep93xx bus glue platform driver

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Date:	Thu, 17 Oct 2013 15:10:33 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	H Hartley Sweeten <hartleys@...ionengravers.com>
cc:	linux-usb@...r.kernel.org,
	ARM Kernel <linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Ryan Mallon <rmallon@...il.com>,
	Lennert Buytenhek <buytenh@...tstofly.org>,
	<gregkh@...uxfoundation.org>, <olof@...om.net>,
	Russell King <linux@....linux.org.uk>
Subject: Re: [PATCH 2/2 v3] usb: ohci: remove ep93xx bus glue platform driver

On Thu, 17 Oct 2013, H Hartley Sweeten wrote:

> Convert ep93xx to use the OHCI platform driver and remove the
> ohci-ep93xx bus glue driver.
> 
> Enable CONFIG_OHCI_HCD_PLATFORM in the ep93xx_defconfig so that USB
> is still enabled by default on the EP93xx platform.
> 
> Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>

> +/*************************************************************************
> + * EP93xx OHCI USB Host
> + *************************************************************************/
> +
> +static struct clk *ep93xx_ohci_host_clock;
> +
> +static int ep93xx_ohci_power_on(struct platform_device *pdev)
> +{
> +	if (!ep93xx_ohci_host_clock) {
> +		ep93xx_ohci_host_clock = devm_clk_get(&pdev->dev, NULL);
> +		if (IS_ERR(ep93xx_ohci_host_clock))
> +			return PTR_ERR(ep93xx_ohci_host_clock);
> +	}
> +
> +	clk_enable(ep93xx_ohci_host_clock);
> +
> +	return 0;

Wasn't this supposed to be changed to:

	return clk_enable(ep93xx_ohci_host_clock);

?  Otherwise it looks fine.  After fixing this, you can add

Acked-by: Alan Stern <stern@...land.harvard.edu>

Alan Stern

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