linux-kernel - Re: [PATCH] mfd: SM501 core driver

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Message-ID: <Pine.LNX.4.64.0702081755290.7686@pentafluge.infradead.org>
Date:	Thu, 8 Feb 2007 17:56:02 +0000 (GMT)
From:	James Simmons <jsimmons@...radead.org>
To:	Ben Dooks <ben-linux@...ff.org>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	linux-fbdev-devel@...ts.sourceforge.net, Greg KH <greg@...ah.com>
Subject: Re: [PATCH] mfd: SM501 core driver



Do you have a new patch?


> > No, that shuldn't be necessary.  If it was, the compiler would optimise
> > away the first readl() in 
> > 
> > 	my_local = readl(foo);
> > 	my_local = readl(bar);
> > 
> > which would break stuff.  readl() implementations use volatile to prevent
> > this.
> 
> Ok, i've moved these into their own function called
> sm501_sync_regs() to make it more explicit what it is
> being used for.
> 
> 
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