linux-kernel - Re: [PATCH] USB device driver of Topcliff PCH

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Message-ID: <20100913152905.GB24329@suse.de>
Date:	Mon, 13 Sep 2010 08:29:05 -0700
From:	Greg KH <gregkh@...e.de>
To:	Masayuki Ohtake <masa-korg@....okisemi.com>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	Peter Korsgaard <peter.korsgaard@...co.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Michal Nazarewicz <m.nazarewicz@...sung.com>,
	Maurus Cuelenaere <mcuelenaere@...il.com>,
	linux-usb <linux-usb@...r.kernel.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Fabien Chouteau <fabien.chouteau@...co.com>,
	david Brownell <dbrownell@...rs.sourceforge.net>,
	Christoph Egger <siccegge@...d.informatik.uni-erlangen.de>,
	LKML <linux-kernel@...r.kernel.org>, MeeGo <meego-dev@...go.com>,
	"Wang, Qi" <qi.wang@...el.com>,
	"Wang, Yong Y" <yong.y.wang@...el.com>,
	Andrew <andrew.chih.howe.khor@...el.com>,
	Intel OTC <joel.clark@...el.com>,
	"Foster, Margie" <margie.foster@...el.com>,
	Arjan <arjan@...ux.intel.com>,
	Toshiharu Okada <okada533@....okisemi.com>,
	Takahiro Shimizu <shimizu394@....okisemi.com>,
	Tomoya Morinaga <morinaga526@....okisemi.com>
Subject: Re: [PATCH] USB device driver of Topcliff PCH

On Mon, Sep 13, 2010 at 01:23:40PM +0900, Masayuki Ohtake wrote:
> Hi Greg
> 
> > > +#define PCH_UDC_BIT_CLR(reg, bitMask) \
> > > + iowrite32((ioread32((reg)) & (~(bitMask))), (reg))
> >
> >
> > Why not just use the iowrite32 functions directly?  Or surely there's
> > another built-in kernel macro for this somewhere, right?
> 
> [masa]
> Which macro is it?
> Do you know?

Nope, sorry, try digging around.

good luck,

greg k-h
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