linux-kernel - Re: [PATCH v2 3/3] USB: cns3xxx: Add EHCI and OHCI bus glue for cns3xxx SOCs

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Date:	Thu, 25 Nov 2010 16:12:24 +0300
From:	Anton Vorontsov <cbouatmailru@...il.com>
To:	mkl0301@...il.com
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	dbrownell@...rs.sourceforge.net, linux-usb@...r.kernel.org
Subject: Re: [PATCH v2 3/3] USB: cns3xxx: Add EHCI and OHCI bus glue for
 cns3xxx SOCs

On Wed, Nov 24, 2010 at 07:25:12PM +0300, Anton Vorontsov wrote:
> On Tue, Nov 23, 2010 at 12:32:45AM +0800, mkl0301@...il.com wrote:
> > From: Mac Lin <mkl0301@...il.com>
> > 
> > The CNS3XXX SOC has include USB EHCI and OHCI compatible controllers. This
> > patch adds the necessary glue logic to allow ehci-hcd and ohci-hcd drivers to
> > work on CNS3XXX
> > 
> > The EHCI and OHCI controllers share a common clock control and reset bit,
> > therefore additional check for the timming of enabling and disabling is
> > required. The USB bit of PLL Power Down Control is also shared by OTG, 24MHz
> > UART clock, Crypto clock, PCIe reference clock, and Clock Scale Generator.
> > Therefore we only ensure it is enabled, while not disabling it.
> > 
> > Signed-off-by: Mac Lin <mkl0301@...il.com>
> 
> Thanks for the patch!
> 
> A few (mostly cosmetic) comments down below.
[...]
> > +#ifdef CNS3XXX_USB_BASE_VIRT
> > +	hcd->regs = (void __iomem *) CNS3XXX_USB_BASE_VIRT;
> > +#else

Oh, and also. Please get rid of these #ifdefs. There is no
CNS3XXX_USB_BASE_VIRT anymore. So, just remove them.

Thanks!

-- 
Anton Vorontsov
Email: cbouatmailru@...il.com
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